Gregory Martin Holtzapple

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Kent, OH, US

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Patents Grantslast 30 patents

Information Patent Grant
Tire with silica-reinforced tread comprised of trans 1,4-polybutadi...
- Patent number 6,581,659
- Issue date Jun 24, 2003
- The Goodyear Tire & Rubber Company
- David John Zanzig
- B60 - VEHICLES IN GENERAL
Information Patent Grant
Tire having silica reinforced rubber tread containing carbon fibers
- Patent number 5,718,781
- Issue date Feb 17, 1998
- The Goodyear Tire & Rubber Company
- John Joseph Andre Verthe
- B60 - VEHICLES IN GENERAL
Information Patent Grant
Tire with tread of elastomer composition
- Patent number 5,504,140
- Issue date Apr 2, 1996
- The Goodyear Tire & Rubber Company
- David J. Zanzig
- B60 - VEHICLES IN GENERAL
Information Patent Grant
Rubber blend and tire with tread thereof
- Patent number 5,300,577
- Issue date Apr 5, 1994
- The Goodyear Tire & Rubber Company
- Raymond R. DiRossi
- B60 - VEHICLES IN GENERAL
Information Patent Grant
Rubber blend and tire with tread thereof
- Patent number 5,087,668
- Issue date Feb 11, 1992
- The Goodyear Tire & Rubber Company
- Paul H. Standstrom
- B60 - VEHICLES IN GENERAL

Patents Applicationslast 30 patents

Information Patent Application
RUBBER COMPOSITION AND TIRE HAVING COMPONENT CONTAINING COMBINATION...
- Publication number 20090056845
- Publication date Mar 5, 2009
- Paul Harry Sandstrom
- B60 - VEHICLES IN GENERAL