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About Patents
What is a Patent?
| Basic Patent Facts| Patent Blogs|

Patent Search
Patent Search Process| Patent Search Apps for the iPad and iPhone| U.S. Patent Databases| How to Search by Patent Number| U.S. Manual of Classification| Classification Definitions| U.S. Official Gazette|Prior Art

Types of U.S. Patents
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Patent Search Help
Patent Search Tutorials| Patent Books|Antique Tools and Patents Books| How to Cite A Patent|

Patent Information for Collectors
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Patent Attorneys
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Patent Law
U.S. Code | CFR |Patent Law Organizations|Patent Journals|

USPTO
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PTDLP (Patent and Trademark Depository Library Program)
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Inventors
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