patent agent, patent application
Introduction to Patents
Glossary of Patent Terms
Invention Disclosure
Patent Related Links

LOW FEES - Don't spend thousands more than you should on a patent application! Before you hire an agent, attorney, or firm, get a second quotation. Starting at $1800 to prepare a utility application. Starting at $600 to prepare a provisional application.
FREE - Initial consultations and written quotation.

Click Here for more information.

21. Once issued, is a patent a done deal?

In the vast majority of cases the answer is yes. However, in a very few instances the validity of an issued patent is challenged in the courts and the patent is subsequently found to be invalid. As this is an exceedingly expensive process, it most frequently occurs in disagreements between corporations. The recently passed America Invents Act also allows others to challenge the validity of a pantent in a post-grant review. A request for the review must be submitted within 9 months after issue.

patent agent, patent application
Copyright ©1996-2008
Ted Masters & Associates, Inc.
Ted Masters - Patent Agent