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!
|
- 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
- Search for patents | USPTO
Find existing patents, published patent applications, and other published patent documentation
- 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
- WIPO - Search International and National Patent Collections
This patent search tool allows you not only to search the PCT database of about 2 million International Applications but also the worldwide patent collections This search facility features: flexible search syntax; automatic word stemming and relevance ranking; as well as graphical results
- Espacenet – patent search
Espacenet provides free access to over 120 million patent documents worldwide, enabling users to search, download, compare, and translate patents
- U. S. Patent, Patent Application and Patent Search - Justia Patents Search
Browse Patents by U S Classification Apparel (Class 2) Baths, closets, sinks, and spittoons (Class 4) Beds (Class 5) Compound tools (Class 7) Bleaching and dyeing; fluid treatment and chemical modification of textiles and fibers (Class 8) Boot and shoe making (Class 12) Bridges (Class 14) Brushing, scrubbing, and general cleaning (Class 15)
- Understanding Patents: Types, Rights, and Examples
Understand how patents work, including how they protect inventions, along with the different types available, and their implications for inventors and businesses
- The Lens - Patent and Scholarly Search and Analysis
Choose among the 5 apps available to you to search and analyse the DNA, RNA and protein sequences found in patents and how these can inform innovation or shape strategies for research or product development
|
|
|