John Leonard Lewin

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Farmington, MN, US

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Patents Grantslast 30 patents

Information Patent Grant
Membrane electrode assembly having annealed polymer electrolyte mem...
- Patent number 6,649,295
- Issue date Nov 18, 2003
- 3M Innovative Properties Company
- Steven Joseph Hamrock
- Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...

Patents Applicationslast 30 patents

Information Patent Application
PROCESS FOR PREPARING MULTI-LAYER PROTON EXCHANGE MEMBRANES AND MEM...
- Publication number 20150299878
- Publication date Oct 22, 2015
- 3M Innovative Properties Company
- Steven J. Hamrock
- C25 - ELECTROLYTIC OR ELECTROPHORETIC PROCESSES APPARATUS THEREFOR
Information Patent Application
Process for preparing multi-layer proton exchange membranes and mem...
- Publication number 20040036394
- Publication date Feb 26, 2004
- 3M Innovative Properties Company
- Steven Joseph Hamrock
- C25 - ELECTROLYTIC OR ELECTROPHORETIC PROCESSES APPARATUS THEREFOR
Information Patent Application
Membrane electrode assembly having annealed polymer electrolyte mem...
- Publication number 20010031388
- Publication date Oct 18, 2001
- 3M Innovative Properties Company
- Steven Joseph Hamrock
- H01 - BASIC ELECTRIC ELEMENTS