Osgood J. Whittemore

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Seattle, WA, US

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Patents Grantslast 30 patents

Information Patent Grant
Method for the extrusion of ceramic filter media
- Patent number 5,925,309
- Issue date Jul 20, 1999
- Mountain Safety Research
- Osgood J. Whittemore
- B28 - WORKING CEMENT, CLAY, OR STONE
Information Patent Grant
Method for the extrusion of ceramic filter media
- Patent number 5,656,220
- Issue date Aug 12, 1997
- Mountain Safety Research
- Osgood J. Whittemore
- B28 - WORKING CEMENT, CLAY, OR STONE