A patent gives inventors a right to exclude others from selling a competing product for 20 years. The 20-year period is known as the patent term. If the patent term can be extended, it would be a crucial factor in determining the profitability of the invention over the life of the patent. There are certain circumstances that can increase the length of the patent term and this … [Read more...]
Patent term
Patent term is 20 years from the filing date of the earliest non-provisional patent application with any patent term adjustments.
Browse related articles below.
What is a terminal disclaimer?
A terminal disclaimer is a statement in which the patent applicant dedicates the ending part of the patent to the public so that all similar patents end on the same date. Put simply, the term of all patents which are similar to each other owned by the patent owner is coterminous. By doing so, it prevents the patent owner from obtaining patent protection for the invention … [Read more...]
What is the term of a patent?
The term of a utility patent is 20 years after the filing date of nonprovisional patent application with a few exceptions. For a design patent, the term is 15 years after the grant date of the design patent. Term of a Utility Patent Basic calculation As indicated above, a utility patent will expire 20 years after the filing date of the nonprovisional patent application. … [Read more...]
Can you re-patent an expired patent?
When your patent nears the end of its term, you might begin to think about how you can extend the life of your patent. You might want to refile an application for a patent on the same invention. But, can it be done? A patent cannot be refiled to extend the life of the patent on the same invention. However, another patent can be secured on an improvement to the original … [Read more...]
Patent royalties not due for activities after patent expiration
Bottom line: Patent royalties based on activities after a licensed patent has expired is per se unlawful. Kimble v. Marvel (S. Ct. 2015). This rule is effective even if the parties did not know about the rule when they entered into the license agreement. Clients will often ask during the last days of a successful patent term how one might go about extending the … [Read more...]
Extend patent protection and receive more royalties
Bottom line: By filing a string of continuing patent applications and not claiming priority for the continuing patent applications back to a common parent application, the patent owner may be able to extend patent protection for its product. Under U.S. patent laws, an inventor can file a series of successive child patent applications. This is commonly referred to as … [Read more...]
Patent term extension granted for some applications filed with RCE
Updated: January 20, 2022 Based on Novartis v. Lee (Fed. Cir. 2014), if patent prosecution lasted more than 3 years and you filed a request for continued examination, you should investigate whether you are due a patent term extension and file any request for correction within 180 days of patent issuance. 1. History In 1994, Congress changed the method of measuring the … [Read more...]
Factors in deciding whether a patent is still enforceable
The stock answer is that a patent is enforceable for 20 years after filing. However, this is not the complete picture. First off, the patent term doesn’t start until the grant of the patent which may be anywhere from a few months for a design patent and a couple of years for a utility patent. The patent term is dependent upon the following factors: 1. Was the first filed … [Read more...]