Questions tagged [invalidation]

Invalidating a patent that has already been granted

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Is US8433843 invalid?

In reference to the patent: US8433843 I'm convinced this patent is invalid. This patent, in summary, is: The idea of combining wear leveling with a secure erase in the write step. Various claims ...
rnpl's user avatar
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Termination of patent right or utility model

I was looking up some prior art that reads, "Termination of patent right or utility model", in the LEGAL EVENT notice on the patent document. what does this mean? why would/could it say this?
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How to get a patent invalidated?

Recently while I was writing up a patent, I discovered that another person has written a patent that is so badly and vaguely worded that it could be used to cover my invention. Whereas I offer clear ...
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