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United States Patent and Trademark Office
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uspto |
http://patft.uspto.gov/netacgi/nph-Parser?Sect2=PTO1&Sect2=HITOFF&p=1&u=/netahtml/PTO/search-bool.html&r=1&f=G&l=50&d=PALL&RefSrch=yes&Query=PN/0000001
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Bioregistry
|
bioregistry |
https://bioregistry.io/uspto:0000001
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Identifiers.org
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miriam |
https://identifiers.org/uspto:0000001
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Name-to-Thing
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n2t |
https://n2t.net/uspto:0000001
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