Thornton Intellectual Property Lawyers

Lawrence Ray Youst
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Lawrence Ray Youst
Dallas, TX Intellectual Property Lawyer with 29 years of experience
(214) 880-9363 2200 Victory Avenue
Suite 2604
Dallas, TX 75219
IP, Patents and Trademarks
Lawrence Youst counsels clients regarding management of their intellectual property assets focusing on portfolio development, patent evaluation, business transactions, dispute resolution and patent monetization. He has been a principal at Patton Boggs LLP, Danamraj & Youst, P.C. and Lawrence Youst PLLC.
Peter Marketos
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Peter Marketos
Dallas, TX Intellectual Property Attorney
(214) 651-5113 901 Main St.
Dallas, TX 75202
IP, Business and Real Estate
University of Texas School of Law
Duane Michael Stamp
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Duane Michael Stamp
Dallas, TX Intellectual Property Attorney with 47 years of experience
(214) 263-8012 5825 Elm Lawn St
Dallas, TX 75228
IP, Arbitration & Mediation, Business and Trademarks
Western New England University School of Law and Western New England College
Former Fortune 100 corporate lawyer provides cost-effective legal services to entrepreneurs, startups and small businesses.
Hillary Anne Brooks
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Hillary Anne Brooks
Dallas, TX Intellectual Property Lawyer with 28 years of experience
(214) 281-4545 6301 Gaston Ave. #1511
Dallas, TX 75214
IP, Patents and Trademarks
SMU Dedman School of Law
Andrew D Martin
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Andrew D Martin
Dallas, TX Intellectual Property Lawyer with 14 years of experience
(214) 999-2918 2200 Ross Ave
Suite 5000
Dallas, TX 75201
IP and Business
Southern Methodist University
Gavin George
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Gavin George
Dallas, TX Intellectual Property Attorney
(214) 651-5148 2323 Victory Ave.
Dallas, TX 75219
IP
University of Michigan Law School
Sam Sokhansanj
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Sam Sokhansanj
Dallas, TX Intellectual Property Lawyer with 16 years of experience
(214) 988-5454 2101 Cedar Springs Rd.
Suite 1050
Dallas, TX 75201
IP, Patents and Trademarks
Seattle University School of Law
Leslie Dale Ware
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Leslie Dale Ware
Dallas, TX Intellectual Property Attorney with 32 years of experience
(214) 744-5000 1701 N Market St
Dallas, TX 75202
IP, Business and Patents
Leslie D. Ware is a Dallas based lawyer specializing in patent management and licensing.
Natasha L Gransberry
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Natasha L Gransberry
Cedar Hill, TX Intellectual Property Lawyer with 18 years of experience
(214) 997-4899 445 E. FM 1382
SUITE #3-157
Cedar Hill, TX 75104
IP, Appeals, Business and Consumer
Texas Southern University Thurgood Marshall School of Law
Lydia Dews
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Lydia Dews
Dallas, TX Intellectual Property Attorney with 21 years of experience
(214) 678-9351 2777 N Stemmons Fwy
Dallas, TX 75207
IP, Arbitration & Mediation, Business and Divorce
Texas A&M University School of Law
Jonathan C. Scott
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Jonathan C. Scott
Dallas, TX Intellectual Property Lawyer with 37 years of experience
(214) 999-0080 2200 Ross Ave
Suite 5000
Dallas, TX 75201
IP, Appeals, Business and Insurance Defense
Touro College
Stuart D. Dwork
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Stuart D. Dwork
Dallas, TX Intellectual Property Lawyer with 42 years of experience
(972) 267-8111 325 N St Paul St
Dallas, TX 75201
IP
Capital University Law School
Yuke Wang
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Yuke Wang
Dallas, TX Intellectual Property Attorney
(214) 284-3876 2200 Ross Avenue
Dallas, TX 75201
IP
Russell F. Coleman
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Russell F. Coleman
Dallas, TX Intellectual Property Attorney with 39 years of experience
(214) 977-6601 400 S Record St
Dallas, TX 75202
IP, Business, Communications and Consumer
John R. Teakell
Dallas, TX Intellectual Property Lawyer with 33 years of experience
(214) 523-9076 2911 Turtle Creek Blvd
Ste. 300a
Dallas, TX 75219
IP, Administrative, Criminal Defense and Environmental
Oklahoma City University School of Law
Vincent W. Perini
Dallas, TX Intellectual Property Lawyer with 57 years of experience
Oak Lawn Plaza Building
2501 Oak Lawn Avenue
Dallas, TX 75219
IP, Animal, Criminal Defense and DUI & DWI
The University of Texas School of Law
Steven Thrasher
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Steven Thrasher
Richardson, TX Intellectual Property Lawyer with 27 years of experience
(214) 502-5923 1350 North Greenville Ave.
Richardson, TX 75081
Free ConsultationIP, Business, Patents and Trademarks
Baylor Law School
For over a decade, I've had the privilege of being a provider for many well known businesses, inventors, and institutions who, like you, want to protect their ideas and monetize their inventions. The proof is in the numbers – my clients have received hundreds of patents and millions of dollars in real world results.

Some of my clients, like Semantra and Advanced Search Labs, have used patents to receive angel investments and venture funding. Other clients, such as Lisa Lloyd and Lori Cheek, have appeared on Shark Tank, Ellen, Dr. Phil (for good reasons) and the Steve Harvey Show. Others...
Alan Abergel
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Alan Abergel
Fort Worth, TX Intellectual Property Lawyer with 18 years of experience
(817) 304-9540 600 West 6th Street
Floor 4
Fort Worth, TX 76102
IP, Business, Securities and Trademarks
Univ of Maryland School of Law
Alan Abergel is an attorney licensed by both the State Bar of California and the State Bar of Texas. My firm’s concentration is in the representation of entrepreneurs and their businesses. My firm provides transactional, regulatory, and administrative litigation services. My firm often acts as outside general counsel for its clients’ businesses. My firm serves many business industries including, lending, financial services, equipment leasing and finance, real estate, technology startups, professional services, music/entertainment, new media, fitness/wellness, manufacturing, restaurants, and apparel. As a Texas and California, business law firm, my firm...
Raymond Lee Panneton
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Raymond Lee Panneton
Houston, TX Intellectual Property Lawyer with 11 years of experience
(713) 783-3110 1800 Bering Drive
Suite 600
Houston, TX 77057
IP, Arbitration & Mediation, Business and Employment
Texas Southern University Thurgood Marshall School of Law
Every day, people come to our law firm on their personal or professional darkest day. Generally speaking, this sense of dread is simply due to being overwhelmed by the situation before them. As a lawyer, being able to shoulder our client's burdens and guide them through the litigation process is extremely rewarding. A native of Fort Hood, Texas, I have built a national litigation practice based on my deep Texas roots. Practicing since 2013, I represent clients across Texas and nationwide facing complex business and intellectual property litigation, including non-compete violations, breach of contract matters, and fraud and misrepresentation. Whether it's...
Brian J Elliott
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Brian J Elliott
Cedar Park, TX Intellectual Property Lawyer with 26 years of experience
(512) 961-7000 100 E Whitestone Blvd
#148-127
Cedar Park, TX 78613
Free ConsultationIP, Business, Communications and Trademarks
University of Miami School of Law
Brian Elliott - Austin Business Lawyer - is an experienced business and technology attorney based in Austin, Texas. Brian focuses his law practice on business transactions, intellectual property, cybersecurity and data privacy, finance and real estate. In addition to private practice of law, Brian has spent many years as an in-house general counsel in private equity, software, cloud technology, eCommerce and fashion and apparel sectors. In addition, Brian has represented his in-house and private practice clients in offensive and defensive commercial and complex civil litigation matters, including patent infringement, patent misuse, misappropriation of trade secrets, anti-trust, deceptive trade...
Bill Hulsey
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Bill Hulsey
Austin, TX Intellectual Property Lawyer with 36 years of experience
(512) 478-9190 3300 Interstate I-35
Suite 700
Austin, TX 78705
Free ConsultationIP and Business
Vanderbilt University
Mr. Hulsey has practiced Patent and Trademark Law for 35 years and serves inventors and entrepreneurs in the Southeast United States, focusing principally in Texas, Oklahoma, Arkansas, Tennessee, Mississippi, Alabama, and Louisiana. He has prosecuted and obtained patents and trademarks for this region’s most aspiring and amazing inventors, entrepreneurs, and dreamers who are dedicated to making the world a better place. He is committed to manifesting a perpetual virtuous cycle of innovation and entrepreneurial growth spurring intellectual property growth, which in turn encourages fair, reasonable, collaborative commercialization and to further yet more regional innovation, entrepreneurial growth, and prosperity. Over the years,...
Gary P. Katz
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Gary P. Katz
HOUSTON, TX Intellectual Property Attorney with 24 years of experience
(183) 272-3952 11391 Meadowglen Lane, Suite K
HOUSTON, TX 77082
Free ConsultationIP
Rutgers School of Law-Newark
When it comes to protecting your intellectual property, experience matters. Katz Law Group, led by Gary Katz, a licensed patent attorney with 23 years of experience, has the experience you deserve. This experience includes ten years in-house with ExxonMobil and over a dozen years working for law firms including small and large firms. Gary has filed and prosecuted several hundred patents for technology startups, mid-size companies as well as several large NYSE companies. Gary is also the Founder & CEO of a cleantech company that is using patented technology to solve our freshwater resource problems. This...
Sul Lee
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Sul Lee
Dallas, TX Intellectual Property Attorney with 14 years of experience
(214) 206-4064 3030 Lyndon B Johnson Fwy
Ste 220
Dallas, TX 75234
IP, Business, International and Trademarks
Benjamin N. Cardozo School of Law Library - Yeshiva University and Benjamin N. Cardozo School of Law
Sul Lee is dedicated to problem-solving and helping businesses prevent and overcome their legal issues. Sul Lee started her law firm in 2013 to translate her love of entrepreneurship, the law, and serving her local communicates and business owners. Helping small and medium businesses grow smart is Sul Lee’s commitment and passion in her business. Sul Lee has worked hard, and her dedication to her fellow small and medium size business owners who conduct business in Texas is evident in her relationships (repeating business) and success rate on behalf of her clients. Ms. Lee takes the utmost pride in receiving repeat...
Yuri Natasha Han
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Yuri Natasha Han
dallas, TX Intellectual Property Lawyer
(214) 206-4064 3030 Lyndon B Johnson FWY
STE 220
dallas, TX 75234
IP, Business, Employment and International
Baylor Law School
Upon receiving a Bachelor of Arts in Political Science and International Relations from the Ohio State University, Yuri decided to pursue her law degree. Thereafter, she attended the Baylor University Law School. Yuri was raised in South Korea and speaks fluent Korean. Yuri worked as a law clerk for our firm and after passing the 2023 Texas Uniform Bar Exam, she began practicing law as an associate attorney. She is a member of good standing of the State Bar of California and the State Bar of Texas. When not practicing law, Yuri enjoys spending time with her husband and two daughters, trying...
Johnathan Spencer Young
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Johnathan Spencer Young
Dallas, TX Intellectual Property Lawyer with 4 years of experience
(214) 206-4064 3030 Lyndon B Johnson Fwy
Ste 220
Dallas, TX 75234
IP, Business, Communications and Trademarks
Texas Tech University School of Law
J. Spencer Young is a Senior Associate Attorney at Sul Lee Law Firm. In assisting clients to obtain the best possible result, Spencer takes pride in working with clients and not just for them. Spencer combines his past work experience, an empathetic understanding, and an outside-the-box, yet practical approach to attack problems head-on. Born and raised in the heart of West Texas, Spencer attended the University of Texas at Austin for his undergraduate studies where he graduated with a Bachelor of Arts degree in government. Thereafter, Spencer attended Texas Tech School of Law, where he graduated in 2019. Spencer served as...
Mr. Robert Z. Cashman
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Mr. Robert Z. Cashman
Houston, TX Intellectual Property Attorney with 17 years of experience
(713) 364-3476 10101 Fondren Road
Suite 452
Houston, TX 77096
Free ConsultationIP and Patents
Touro College
Robert Z. Cashman provides nationwide legal representation for patent litigation matters on a contingency fee basis. He is licensed to practice law in Texas, in New York, and before the US Patent & Trademark Office. Robert is the owner of the Cashman Law Firm, PLLC which helps individuals and small businesses create their business, establish and protect their inventions, and preserve their assets against foreclosure and if necessary, bankruptcy.

Since 2010, Robert has focused his practice on defending accused bittorrent downloaders in copyright infringement lawsuits filed in federal courts across the US. Most recently, cases represented by the Cashman...
Simon (Trey) Hendershot III
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Simon (Trey) Hendershot III
Austin, TX Intellectual Property Attorney with 36 years of experience
(713) 561-5793 111 Congress Ave. #400
Austin, TX 78701
IP, Business, Construction and Health Care
South Texas College of Law
As the managing shareholder of Hendershot Cowart P.C., I look out for the best interest of our clients by utilizing our many years of combined experience practicing business law, business litigation, health law, and regulatory compliance. Our tagline is: "Your Attorneys. Your Team. Your Law Firm for Life." And that's true. It's my approach to client service, and it lays the foundation for our collaboration – now and into the future. My decision to practice law was inspired by the strong work ethic of my father and grandfather. Being a successful attorney requires dedication and experience. Whether reviewing an employment contract or...
Warren V. Norred
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Warren V. Norred
Arlington, TX Intellectual Property Attorney with 16 years of experience
(817) 704-3984 200 East Abram Street
Arlington, TX 76010
IP, Bankruptcy, Business and Patents
Texas Wesleyan University School of Law - Texas Wesleyan University
Norred Law handles litigation, bankruptcy, and intellectual property matters.

Litigation matters include from simple small claim matters to federal patent litigation. Norred Law has represented its clients in federal courts from California to New York, and in every federal district in Texas.

For our bankruptcy clients, we handle Chapter 7 and Chapter 11 matters for individuals and businesses, and Chapter 13 for individuals when appropriate. We also represent creditors who find themselves involved in bankruptcy.

In intellectual Property issues, Norred Law handles patents, trademarks, and copyrights. As a registered professional engineer with an MSEE and more than 15 years of...
Darin Michael Klemchuk
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Darin Michael Klemchuk
Dallas, TX Intellectual Property Lawyer with 26 years of experience
(214) 367-6000 8150 N Central Expressway
10th Floor
Dallas, TX 75206
Free ConsultationIP, Business, Patents and Trademarks
Vanderbilt University Law School and University of Washington School of Law
My chief passion is to revolutionize the way legal services are delivered, particularly intellectual property (IP) and technology law. I am an evangelist for change in how law firms are structured to provide a different kind of experience for not only clients, but also professionals in the legal industry. One of my greatest career achievements is our firm twice winning honors as one of the best places to work in Dallas, as recognized by the Dallas Business Journal in 2010 and 2011. As part of this mission, we have embraced conscious capitalism (sometimes called purposeful capitalism) and...
Feras Mousilli
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Feras Mousilli
Austin, TX Intellectual Property Lawyer with 20 years of experience
(512) 609-0059 4400 Far West Blvd
Austin, TX 78731
Free ConsultationIP and Communications
Feras Mousilli is a founding partner of Lloyd & Mousilli and regularly advises business clients on a range of technology law issues. He specializes in counseling technology companies from start-ups in their early formation and development, through support of multi-billion dollar business operations of the largest companies in the world.

Mr. Mousilli has served as Senior Corporate Counsel for both Apple Inc. and Dell Inc., where he counseled clients on product development and intellectual property matters, including advertising & marketing, copyright, and trademark strategies and risks. Prior to serving as corporate counsel, Mr. Mousilli practiced with DLA Piper in the intellectual...
Temitope Oluwatoyin Siyanbade
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Temitope Oluwatoyin Siyanbade
Houston, TX Intellectual Property Lawyer with 9 years of experience
(713) 300-9204 9950 Westpark Dr
#625
Houston, TX 77063
IP, Business, Entertainment & Sports and Trademarks
University of Houston Law Center
Most business owners are reactive instead of proactive so they neglect foundational business law issues until its too late. My firm focuses on providing support to help business owners avoid costly legal mistakes so that they can protect their brands, grow their businesses, and secure their wealth. We provide services in the areas of: - LLC formation - Start up law (C corporations) - LLC documentation - Corporate documents - Business Succession - Intellectual Property (Copyright, trademark, trade secrets) - LLC reinstatements - Corporate reinstatements - Contract review - Licensing Agreements - Franchise Agreements
Dominique M. Williams
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Dominique M. Williams
dallas, TX Intellectual Property Attorney with 2 years of experience
(214) 206-4064 3030 Lyndon B Johnson FWY
STE 220
dallas, TX 75234
IP, Business, Communications and Trademarks
Tulane University School of Law
A New Orleans native, Dominique received a Bachelor of Business Administration in Finance from Loyola University New Orleans. After taking a gap year to move to Oakland, California, Dominique returned to New Orleans and continued her undergraduate education while also working full time to put herself through school. Following her undergraduate education, Dominique went on to receive her Juris Doctor from Tulane University New Orleans, where she focused primarily on corporate and intellectual property law. During law school, Dominique demonstrated her ability to balance her coursework with extracurriculars. Ms. Williams served as a member of Tulane’s Black Law Student’s Association Mock...
LeDouglas Genator Johnson
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LeDouglas Genator Johnson
dallas, TX Intellectual Property Attorney with 25 years of experience
(214) 206-4064 3030 Lyndon B Johnson FWY
STE 220
dallas, TX 75234
IP, Business, Communications and International
LeDouglas is an accomplished attorney who possesses a deep understanding of the business landscape, along with the foresight to proactively identify and address potential challenges. He demonstrates a unique blend of analytical thinking, composure, and strategic acumen. What truly distinguishes LeDouglas from his peers is his exceptional ability to swiftly align business objectives within the context of proactive risk management, complex commercial litigation, and innovative dispute resolution strategies. Whether standing at the boardroom table or in the courtroom, LeDouglas exudes a composed demeanor that conceals a remarkable tenacity. This tenacity has propelled him through a diverse array of challenges throughout his...
Roger Doumanian
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Roger Doumanian
Dallas, TX Intellectual Property Attorney with 18 years of experience
(214) 790-7277 13355 Noel Road, Suite 1100
Dallas, TX 75240
Free ConsultationIP, Business and Trademarks
Southwestern Univ School of Law
Our practice is focused on advising and representing startups, small business owners, and privately held corporations. Our services encompass business formation, corporate and LLC compliance, contract writing, reviewing, and negotiating, as well as trademark registration and maintenance. We pride ourselves in helping clients protect their business interests through personalized legal counsel and representation.

Ken  Emanuelson
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Ken Emanuelson
Dallas, TX Intellectual Property Lawyer with 24 years of experience
(214) 390-4800 17304 Preston Rd, Suite 800
Dallas, TX 75252
Free ConsultationIP, Business, Patents and Trademarks
The University of Texas School of Law
In over 20 years of experience securing, prosecuting and asserting his clients’ intellectual property rights, Ken’s career has included work with a wide variety of intellectual property assets, including utility patents, copyrights, design patents, trade and service marks and trade secrets across a broad range of technologies.
Katherine Leslie Sunstrom
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Katherine Leslie Sunstrom
Houston, TX Intellectual Property Lawyer with 21 years of experience
(713) 868-5560 2900
Houston, TX 77027
IP
Before joining Lorance & Thompson in 2010, Katie practiced as a solo attorney and dedicated the majority of her practice to assisting and serving small businesses and individuals with their copyright, trademark, intellectual property, and business litigation needs. She adopts the entrepreneurial values of her clients and acts as a champion for them in their efforts to grow and protect their intellectual property and good will. Because her practice was a small business, she is able to identify with and better serve her clients’ unique needs. Prior to having her own firm, Katie practiced for five years...
Dana Andrew Lejune
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Dana Andrew Lejune
Houston, TX Intellectual Property Attorney with 40 years of experience
(713) 942-9898 1225 North Loop West
Suite 825
Houston, TX 77008
Free ConsultationIP, Consumer, Employment and Legal Malpractice
South Texas College of Law
Dana Andrew LeJune was born in Beaumont, Texas in 1956 into a Cajun, rice sharecropping family. He graduated from French High School there in 1975. In 1976 he began his undergraduate studies at the University of Texas at Austin, and received his B.A. in History three years later. He taught Government and History at French High School through May, 1979, when he began law school.

Mr. LeJune attended South Texas College of Law and graduated with a J.D. in December, 1982, after having published a maritime law article in the August, 1982 South Texas Law Journal. He took the February, 1983...
John T. Polasek
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John T. Polasek
Bellaire, TX Intellectual Property Lawyer with 33 years of experience
(832) 485-3580 6750 West Loop S.
STE 920
Bellaire, TX 77401
Free ConsultationIP, Patents and Trademarks
South Texas College of Law
John T. Polasek (Ted) has been practicing law since 1990. Ted’s practice at The Polasek Law Firm, PLLC focuses on patent infringement litigation and licensing of patents. In addition, Ted litigates a broad array of intellectual property cases, involving trade secret misappropriation, trademark infringement, copyrights, unfair competition, breach of contract and related commercial litigation. His clients include patent owners, trademark owners and companies accused of patent infringement or trademark infringement. Ted has successfully negotiated licenses involving patent portfolios that include over 100 patents.

As technology evolved, Ted gained experience in a wide variety of technologies. Ted has handled patent infringement...
Lance Lubel
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Lance Lubel
Houston, TX Intellectual Property Lawyer with 33 years of experience
(713) 284-5200 675 Bering Dr
#850
Houston, TX 77057
Free ConsultationIP, Business, Personal Injury and Products Liability
University of Houston - Main Campus
John J Davis III
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John J Davis III
Fort Worth, TX Intellectual Property Lawyer with 11 years of experience
(817) 764-3459 777 Main St. #600
Fort Worth, TX 76102
Free ConsultationIP, Business, Patents and Trademarks
South Texas College of Law
John Davis is a founder and Managing Member at Kearney, McWilliams & Davis, PLLC. He practices and oversees the firm’s intellectual property, residential and commercial property, commercial transactions, and litigation practice areas. For his clients, John focuses on business problems and solutions, including entity creation, financing, mergers & acquisitions, entity reorganizations, dispute resolution, and corporate best practices and business strategy. His experience includes providing assistance in the creation of companies and commercialization of technologies, including identifying and filing appropriate intellectual property protections in patents, trademarks, and copyrights, as well as the enforcement of such rights. He also serves as counsel,...
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