Richard M. Pieper

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St. Paul, MN, US

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Patents Grantslast 30 patents

Information Patent Grant
Spectroscopic sample holder
- Patent number 5,764,355
- Issue date Jun 9, 1998
- David R. Gagnon
- G01 - MEASURING TESTING
Information Patent Grant
Method for performing a solid-phase extraction under pressurized co...
- Patent number 5,391,298
- Issue date Feb 21, 1995
- Minnesota Mining and Manufacturing Company
- Richard M. Pieper
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL