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Questions tagged [invalidation]

Invalidating a patent that has already been granted

Use this tag for questions about invalidating a patent that has already been granted.

If your question is about a specific patent, also tag it with the patent number and class or domain as you would for a question.
If your question is about the legal process, tag it with and any other applicable tag (such as one indicating the jurisdiction).

47 questions
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Penalties for errors in patents

If I go to the DMV and try to register a car that doesn't belong to me, or if I enter into a contract under fraudulent assumptions, I could be criminally or civilly liable. I am not free to make false claims in legally binding documents. What are…
Tom Anderson
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Patent Invalidation in part or totally

If a Patent claims more than one "Item", say Item A, Item B, Item C etc... and if it can be proved that say Item A, has been offered and sold to a commercial entity, can the Patent be invalidated in its totality, or only Item A is invalidated?
George Souaya
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Are conference papers, proceedings or journal articles published 6-7 years prior to his patent considered as published material invalidating patent?

In 102(a) it says that if you published the material before he invented it, then his patent is invalid. This is also problematic, because it involves determining when he came up with the invention. However, if he didn't really invent it, he'll have…
Ronnie Bolick
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Air Freshener Dispenser Lid; D 641, 464

Any information, prior to 2011, which may invalidate this design patent: D 641 464; Title: Air Freshener Dispenser Lid In addition to Air Freshener lids, possibly jar lids, wheel stencils, shower heads, or anything having the pattern of holes of…
Walter Tencza
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