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
- 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
- Intellectual Property Law: A Beginners Guide
This guide provides an introduction to intellectual property law and a foundation for researching patents, copyright, and trademarks
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