David L. Gefvert

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Chester, VA, US

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Patents Grantslast 30 patents

Information Patent Grant
Process for cleaning and softening fabrics
- Patent number 7,572,761
- Issue date Aug 11, 2009
- Evonik Degussa GmbH
- David L. Gefvert
- C11 - ANIMAL AND VEGETABLE OILS, FATS, FATTY SUBSTANCES AND WAXES FATTY ACIDS...
Information Patent Grant
MDEA ester quats with high content of monoester in blends with tea...
- Patent number 6,737,392
- Issue date May 18, 2004
- Goldschmidt Chemical Corporation
- Robert O. Keys
- C11 - ANIMAL AND VEGETABLE OILS, FATS, FATTY SUBSTANCES AND WAXES FATTY ACIDS...

Patents Applicationslast 30 patents

Information Patent Application
Process for cleaning and softening fabrics
- Publication number 20070111925
- Publication date May 17, 2007
- Goldschmidt Chemical Corporation
- David L. Gefvert
- C11 - ANIMAL AND VEGETABLE OILS, FATS, FATTY SUBSTANCES AND WAXES FATTY ACIDS...