Duane W. Witzke

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Logan, OH, US

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Patents Grantslast 30 patents

Information Patent Grant
Method for manufacturing contoured seats
- Patent number 4,925,513
- Issue date May 15, 1990
- Hoover Universal, Inc.
- Duane W. Witzke
- B60 - VEHICLES IN GENERAL
Information Patent Grant
Method of making a vehicle seat assembly with pour-in-place foam body
- Patent number 4,860,415
- Issue date Aug 29, 1989
- Hoover Universal, Inc.
- Duane W. Witzke
- B60 - VEHICLES IN GENERAL
Information Patent Grant
Method and apparatus for manufacturing seats and article formed the...
- Patent number 4,740,260
- Issue date Apr 26, 1988
- Johnson Service Company
- Alan J. Selbert
- B60 - VEHICLES IN GENERAL
Information Patent Grant
Seat assembly with foam encapsulated load-supporting fibrous matrix
- Patent number 4,702,522
- Issue date Oct 27, 1987
- Hoover Universal, Inc.
- Curtis F. Vail
- B60 - VEHICLES IN GENERAL
Information Patent Grant
J-clip mounting system for load bearing seat members
- Patent number 4,603,907
- Issue date Aug 5, 1986
- Hoover Universal, Inc.
- Duane W. Witzke
- B60 - VEHICLES IN GENERAL