David A. Young

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Grand Rapids, MI, US

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Patents Grantslast 30 patents

Information Patent Grant
Synchronized chair seat and backrest tilt control mechanism
- Patent number 6,139,103
- Issue date Oct 31, 2000
- Leggett & Platt, Inc.
- Kenneth C. Hybarger
- A47 - FURNITURE DOMESTIC ARTICLES OR APPLIANCES COFFEE MILLS SPICE MILLS SUCT...
Information Patent Grant
Synchronized chair seat and backrest tilt control mechanism
- Patent number 6,010,189
- Issue date Jan 4, 2000
- Leggett & Platt, Incorporated
- Kenneth C. Hybarger
- A47 - FURNITURE DOMESTIC ARTICLES OR APPLIANCES COFFEE MILLS SPICE MILLS SUCT...
Information Patent Grant
Synchronized chair seat and backrest tilt control mechanism
- Patent number 6,000,756
- Issue date Dec 14, 1999
- Leggett & Platt, Inc.
- Kenneth C. Hybarger
- A47 - FURNITURE DOMESTIC ARTICLES OR APPLIANCES COFFEE MILLS SPICE MILLS SUCT...
Information Patent Grant
Knee-tilt chair control
- Patent number 4,948,198
- Issue date Aug 14, 1990
- Leggett & Platt, Incorporated
- Philip Crossman
- A47 - FURNITURE DOMESTIC ARTICLES OR APPLIANCES COFFEE MILLS SPICE MILLS SUCT...