David J. Hoffman

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Dubuque, IA, US

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Patents Grantslast 30 patents

Information Patent Grant
Seal for an open door of a vehicle
- Patent number 7,695,048
- Issue date Apr 13, 2010
- Rite-Hite Holding Corporation
- David Hoffman
- B60 - VEHICLES IN GENERAL
Information Patent Grant
Loading dock seal assembly
- Patent number 5,953,868
- Issue date Sep 21, 1999
- Rite-Hite Holding Corporation
- Jon A. Giuliani
- B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL

Patents Applicationslast 30 patents

Information Patent Application
DOCK SEAL WITH PARTIALLY SLICED FOAM CORE
- Publication number 20090064605
- Publication date Mar 12, 2009
- David J. Hoffman
- B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL