- BlumbergExcelsior: Trademark and Patent Folders
- Patent and trademark folders with sections for sent to PTO, received from PTO, references, correspondence and drawings as well as receipt cards, bristol board and A-4 metric size paper.
- CrazyPatents.com
- Information and images of unique and entertaining patents issued to individuals.
- Eipa-Patents.org
- Official homepage of the European Intellectual Property Association. Presents updates on the latest patents, news, and related links.
- Find That Patent
- Search engine particularly designed to find information about US patents, claims, and abstracts.
- FreePatentsOnline.com
- Web-based patent analytics and searching service.
- FreshPatents.com
- Updates on the most recently published US patent applications.
- Google Patent Search
- Specialized search engine gathers pattern information from the United States Patent and Trademark Office (USPTO).
- Patent Alert
- Free publication for those interested in patents. Provides regular updates on inventions recently patented in the United States.
- Patent Baristas
- Intellectual property news and commentary site. Includes updates on biotechnology and pharmaceutical patent law.
- Patent Genius
- Information on a wide variety of patents. Includes inventor, patent holder, and patent number details.
- Patent Law Net
- Interactive online resource for patent counsels and intellectual property managers. Includes news, alerts, and a forum board.
- Patent Law Portal
- Provides legal information related to intellectual property, particularly patents, and a search for attorneys.
- Patent Lens
- Independent online patent search service developed to help increase patent transparency.
- Patent Search Information
- Online portal to finding various patent information. With help for inventors and featured patent books.
- Patently Absurd
- Features weird and funny patented ideas and inventions that actually exist.
- Software Patent Institute
- Nonprofit corporation established to provide prior art related to software technology and to help improve the patent process.
- Strategy Patent
- Information and insights on the creation and valuation of intellectual assets for early stage companies, universities, and investor groups.
- US Patent and Trademark Office
- Provides information on patents and trademarks, as well as downloadable forms and additional resources.
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