Stephen E. Zweig

Stephen E. Zweig

Experienced patent attorney
  • Patents, Trademarks, Intellectual Property
  • California, USPTO patent bar (Federal Jurisdiction)
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Biography

Experienced patent attorney with a strong technical background, over 250+ issued patents, and many trademarks.

In addition to my legal background, I have a Biophysics STEM background (PhD) and experience with medical devices, software, electronics, and biotech. I have a lot of experience with startups, due diligence, and litigation support.

Practice Areas
    Patents
    Patent Prosecution
    Trademarks
    Trademark Registration
    Intellectual Property
Jurisdictions Admitted to Practice
California
State Bar of California
ID Number: 283095
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USPTO patent bar (Federal Jurisdiction)
ID Number: 60144
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Professional Associations
American Bar Association  # 02064556
Member
Current
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Websites & Blogs
Website
PatentAssociate.com
Blog
PatentAssociate IP Blog
Legal Answers
15 Questions Answered
Q. Abandoned patent used in research
A: If the patent was abandoned more than two years ago, then the chances that the owner could revive it are pretty low, and it should be relatively safe to use. If the patent expired due to "old age," then it is also safe to use. The main risk is if the patent was recently abandoned (less than two years) due to failure to pay a maintenance fee. This is because the owner could easily come back and pay the fee to revive the patent. Note that although patent holders usually don't bother to go after research use in a university setting, this doesn't mean that universities are exempt from patent laws.
Q. Can the formula for a specific type of concrete be patented?
A: Yes. Like all patents, however, the formula needs to be novel and not obvious. Check patents.google.com or other source to see prior art on concrete formulas. The good news and bad news is that there are a lot of concrete formula patents ahead of you. The examiner will be looking at your patent application, and will try to argue that your formula is obvious by using elements from other concrete formula patents. So you will need to think this through in advance, and try to anticipate some of these rejections in your patent application.
Q. Can you file a patent of a structure built from Bamboo?
A: It depends on the structure. The USPTO will not give you much if any credit for teaching Bamboo. They also won't give you much if any credit for teaching a known structure such as a teepee. However if you come up with a non-obvious and original structure, or some non-obvious way of altering or treating the bamboo to improve its properties, then this might work.
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Contact & Map
Patentassociate.com
15466 Los Gatos Blvd., 109-355
Los Gatos, CA 95032
Telephone: (408) 348-1495
Monday: 8 AM - 5 PM
Tuesday: 8 AM - 5 PM (Today)
Wednesday: 8 AM - 5 PM
Thursday: 8 AM - 5 PM
Friday: 8 AM - 5 AM
Saturday: 8 AM - 5 PM
Sunday: 8 AM - 5 PM
Notice: Although I prefer to talk during weekday business hours, I am available for rush or emergency discussions during weekends and off-hours as well.