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Kenneth J. Penning
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Grand Rapids, MI, US
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Patents Grants
last 30 patents
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Patent Grant
Chair
Patent number
D434918
Issue date
Dec 12, 2000
Steelcase Inc.
Robert P. Arko
D06 - Furnishings
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Patent Grant
Chair with adjustable armrest
Patent number
6,053,577
Issue date
Apr 25, 2000
Steelcase Development Inc.
Robert P. Arko
A47 - FURNITURE DOMESTIC ARTICLES OR APPLIANCES COFFEE MILLS SPICE MILLS SUCT...
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Patent Grant
Chair
Patent number
D420538
Issue date
Feb 15, 2000
Steelcase Inc.
Robert P. Arko
D06 - Furnishings
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Patent Grant
Chair
Patent number
D393968
Issue date
May 5, 1998
Steelcase Inc.
Kenneth James Penning
D06 - Furnishings