Robert E. Perkins

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Oakdale, MN, US

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Patents Grantslast 30 patents

Information Patent Grant
Composite articles separating mercury from fluids
- Patent number 5,558,771
- Issue date Sep 24, 1996
- Minnesota Mining and Manufacturing Company
- Donald F. Hagen
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Grant
Method for separating mercury from fluids using composite articles
- Patent number 5,492,627
- Issue date Feb 20, 1996
- Minnesota Mining and Manufacturing Company
- Donald F. Hagen
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Grant
Composite reactive articles for the determination of cyanide
- Patent number 5,470,532
- Issue date Nov 28, 1995
- Minnesota Mining and Manufacturing Company
- Donald F. Hagen
- G01 - MEASURING TESTING
Information Patent Grant
Composite reactive articles for the determination of cyanide
- Patent number 5,340,746
- Issue date Aug 23, 1994
- Minnesota Mining and Manufacturing Company
- Donald F. Hagen
- G01 - MEASURING TESTING