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
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
Patent - Wikipedia Similar grants included land patents, which were land grants by early state governments in the US, and printing patents, a precursor of modern copyright In modern usage, the term patent usually refers to the right granted to anyone who invents something new, useful and non-obvious