安裝中文字典英文字典辭典工具!
安裝中文字典英文字典辭典工具!
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- Google Patents
Search and read the full text of patents from around the world with Google Patents, and find prior art in our index of non-patent literature
- United States Patent and Trademark Office
Home page of the United States Patent and Trademark Office's main web site
- U. S. Patent and Trademark Office (USPTO) | USAGov
The U S Patent and Trademark Office (USPTO) is the agency responsible for granting U S patents and registering trademarks
- U. S. Patent, Patent Application and Patent Search - Justia Patents Search
Justia Webinars are free and open to all, lawyers and non-lawyers CLE credit is only available for Justia Connect Pro members View individual webinar pages for CLE accreditation info Lawyers - Get Listed Now! Get a free directory profile listing More
- Understanding Patents: Types, Rights, and Examples
What Does Patent Mean? A patent is a legal right to an invention given to a person or entity without interference from others who wish to replicate, use, or sell it
- PATENTSCOPE - WIPO
Free search of international patent applications filed under the PCT System and in many national collections
- Espacenet – patent search
Espacenet provides free access to over 120 million patent documents worldwide, enabling users to search, download, compare, and translate patents
- Patent - Wikipedia
In modern usage, the term patent usually refers to the right granted to anyone who invents something new, useful and non-obvious
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