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U.S. patent (1985-2018) U.S. patent (2018-present) Patent applications can be filed at the United States Patent and Trademark Office (USPTO). Prior to June 7, 1995, the duration of a US utility patent was 17 years from patent issuance. Since that date, the duration of the US utility patent is 20 years from the earliest effective filing date.
(a) the problem with biological inventions is where the discovery of Nature's work ends and where a human invention begins, i.e. patent monopoly should not encompass a "natural phenomenon or a law of nature". (b) the problem with the software inventions (such as “mathematical algorithms, including those executed on a generic computer,...
The ability to assign ownership rights increases the liquidity of a patent as property. Inventors can obtain patents and then sell them to third parties. [71] The third parties then own the patents and have the same rights to prevent others from exploiting the claimed inventions, as if they had originally made the inventions themselves.
The European Patent Convention (EPC) does not provide positive guidance on what should be considered an invention for the purposes of patent law. However, it provides in Article 52(2) EPC a non-exhaustive list of what are not to be regarded as inventions, and therefore not patentable subject matter:
When a work is available in one field of endeavor, design incentives and other market forces can prompt variations of it, either in the same field or a different one. If a person of ordinary skill can implement a predictable variation, § 103 likely bars its patentability. Sakraida v. AG Pro, Inc. (1976)
In the process of developing an invention, the initial idea may change. The invention may become simpler, more practical, it may expand, or it may even morph into something totally different. Working on one invention can lead to others too. [13] History shows that turning the concept of an invention into a working device is not always swift or ...
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