Shishan Yuan

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St. Paul, MN, US

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Patents Grantslast 30 patents

Information Patent Grant
Infectious cDNA clones of porcine reproductive and respiratory synd...
- Patent number 7,273,617
- Issue date Sep 25, 2007
- Protatek International, Inc.
- Shishan Yuan
- C12 - BIOCHEMISTRY BEER SPIRITS WINE VINEGAR MICROBIOLOGY ENZYMOLOGY MUTATION...
Information Patent Grant
Infectious cDNA clones of porcine reproductive and respiratory synd...
- Patent number 6,841,364
- Issue date Jan 11, 2005
- Protatek International, Inc.
- Shishan Yuan
- C12 - BIOCHEMISTRY BEER SPIRITS WINE VINEGAR MICROBIOLOGY ENZYMOLOGY MUTATION...

Patents Applicationslast 30 patents

Information Patent Application
Infectious cDNA clones of porcine reproductive and respiratory synd...
- Publication number 20050238661
- Publication date Oct 27, 2005
- ProtaTek International, Inc.
- Shishan Yuan
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information Patent Application
Infectious cDNA clones of porcine reproductive and respiratory synd...
- Publication number 20030138916
- Publication date Jul 24, 2003
- ProtaTek International, Inc.
- Shishan Yuan
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE