Douglas K. Feenstra

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Wyoming, MI, US

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Patents Grantslast 30 patents

Information Patent Grant
Phosphate and phosphonate-free automatic gel dishwashing detergent...
- Patent number 8,454,757
- Issue date Jun 4, 2013
- Access Business Group International LLC
- Douglas K. Feenstra
- C11 - ANIMAL AND VEGETABLE OILS, FATS, FATTY SUBSTANCES AND WAXES FATTY ACIDS...
Information Patent Grant
Phosphate and phosphonate-free automatic gel dishwashing detergent...
- Patent number 8,343,904
- Issue date Jan 1, 2013
- Access Business Group International LLC
- Douglas K. Feenstra
- C11 - ANIMAL AND VEGETABLE OILS, FATS, FATTY SUBSTANCES AND WAXES FATTY ACIDS...
Information Patent Grant
Automatic phosphate-free dishwashing detergent providing improved s...
- Patent number 7,781,387
- Issue date Aug 24, 2010
- Access Business Group International, LLC
- Douglas K. Feenstra
- C11 - ANIMAL AND VEGETABLE OILS, FATS, FATTY SUBSTANCES AND WAXES FATTY ACIDS...

Patents Applicationslast 30 patents

Information Patent Application
Phosphate And Phosphonate-Free Automatic Gel Dishwashing Detergent...
- Publication number 20130090281
- Publication date Apr 11, 2013
- Access Business Group International LLC
- Douglas K. Feenstra
- C11 - ANIMAL AND VEGETABLE OILS, FATS, FATTY SUBSTANCES AND WAXES FATTY ACIDS...
Information Patent Application
Phosphate And Phosphonate-Free Automatic Gel Dishwashing Detergent...
- Publication number 20100298192
- Publication date Nov 25, 2010
- Douglas K. Feenstra
- C11 - ANIMAL AND VEGETABLE OILS, FATS, FATTY SUBSTANCES AND WAXES FATTY ACIDS...
Information Patent Application
Automatic Phosphate-Free Dishwashing Detergent Providing Improved S...
- Publication number 20090186795
- Publication date Jul 23, 2009
- Douglas K. Feenstra
- C11 - ANIMAL AND VEGETABLE OILS, FATS, FATTY SUBSTANCES AND WAXES FATTY ACIDS...