David Grottenthaler

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McDonald, PA, US

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Patents Grantslast 30 patents

Information Patent Grant
Fluid treatment systems, compositions and methods for metal ion sta...
- Patent number 9,034,805
- Issue date May 19, 2015
- Kroff Chemical Company
- Paul Rey
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Grant
Methods of treating flowback water
- Patent number 8,871,691
- Issue date Oct 28, 2014
- Kroff Chemical Company
- Paul Rey
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...

Patents Applicationslast 30 patents

Information Patent Application
Methods of Treating Flowback Water
- Publication number 20100307753
- Publication date Dec 9, 2010
- KROFF WELL SERVICES, INC.
- Paul Rey
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Application
Fluid Treatment Systems, Compositions and Methods for Metal Ion Sta...
- Publication number 20100311623
- Publication date Dec 9, 2010
- KROFF WELL SERVICES, INC.
- Paul Rey
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...