Richard J. Rohfritch

Follow

Person

The Woodlands, TX, US

People

Patents Grantslast 30 patents

Information Patent Grant
Filterless crankcase lubrication system for a vehicle
- Patent number 7,207,308
- Issue date Apr 24, 2007
- Afton Chemical Corporation
- David A Venhaus
- C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...

Patents Applicationslast 30 patents

Information Patent Application
FILTERLESS CRANKCASE LUBRICATION SYSTEM FOR A VEHICLE
- Publication number 20070186893
- Publication date Aug 16, 2007
- AFTON CHEMICAL CORPORATION
- David A. Venhaus
- C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
Information Patent Application
Filterless crankcase lubrication system for a vehicle
- Publication number 20050257767
- Publication date Nov 24, 2005
- David A. Venhaus
- C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...