Douglas A. Seiler

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Novato, CA, US

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Patents Grantslast 30 patents

Information Patent Grant
Convertible protective cover for a mask
- Patent number 6,038,706
- Issue date Mar 21, 2000
- Douglas A. Seiler
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information Patent Grant
Convertible protective cover for a mask
- Patent number 5,878,443
- Issue date Mar 9, 1999
- Douglas A. Seiler
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information Patent Grant
Convertible protective cover for cameras binocular and the like
- Patent number 5,816,464
- Issue date Oct 6, 1998
- Douglas A. Seiler
- A45 - HAND OR TRAVELLING ARTICLES
Information Patent Grant
Eyeglass retainer and protective cover
- Patent number 5,687,837
- Issue date Nov 18, 1997
- Douglas A. Seiler
- G02 - OPTICS