Gretchen E. Keenan

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Edina, MN, US

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Patents Grantslast 30 patents

Information Patent Grant
Laminate preventing transmissions of viral pathogens
- Patent number 5,981,038
- Issue date Nov 9, 1999
- 3M Innovative Properties Company Minnesota Mining and Manufacturing Co.
- William K. Weimer
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information Patent Grant
Method for laminating a viral barrier microporous membrane to a non...
- Patent number 5,935,370
- Issue date Aug 10, 1999
- #M Innovative Properties Company Minnesota Mining and Manufacturing Co.
- William K. Weimer
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information Patent Grant
Method for preventing transmission of viral pathogens
- Patent number 5,738,111
- Issue date Apr 14, 1998
- Minnesota Mining and Manufacturing Company
- William K. Weimer
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information Patent Grant
Microporous membrane material for preventing transmission of viral...
- Patent number 5,690,949
- Issue date Nov 25, 1997
- Minnesota Mining and Manufacturing Company
- William K. Weimer
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE