William S. Stumpf

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Waterloo, CA

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Patents Grantslast 30 patents

Information Patent Grant
Chair adjustment mechanism
- Patent number 6,491,344
- Issue date Dec 10, 2002
- Leggett & Platt Ltd.
- William S. Stumpf
- A47 - FURNITURE DOMESTIC ARTICLES OR APPLIANCES COFFEE MILLS SPICE MILLS SUCT...
Information Patent Grant
Chair seat height adjustment mechanism
- Patent number 6,045,187
- Issue date Apr 4, 2000
- Northfield Metal Products Ltd.
- William S. Stumpf
- A47 - FURNITURE DOMESTIC ARTICLES OR APPLIANCES COFFEE MILLS SPICE MILLS SUCT...
Information Patent Grant
Chair tilt mechanism
- Patent number 5,997,087
- Issue date Dec 7, 1999
- Northfield Metal Products Ltd.
- William S. Stumpf
- A47 - FURNITURE DOMESTIC ARTICLES OR APPLIANCES COFFEE MILLS SPICE MILLS SUCT...
Information Patent Grant
Adjustment mechanism for chairs
- Patent number 5,944,387
- Issue date Aug 31, 1999
- Northfield Metal Products Ltd.
- William S. Stumpf
- A47 - FURNITURE DOMESTIC ARTICLES OR APPLIANCES COFFEE MILLS SPICE MILLS SUCT...