David Allen Wald

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Lakeland, MN, US

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Patents Grantslast 30 patents

Information Patent Grant
Membrane electrode assembly with compression control gasket
- Patent number 8,343,682
- Issue date Jan 1, 2013
- 3M Innovative Properties Company
- David Allen Wald
- Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
Information Patent Grant
Fuel cell membrane electrode assembly with sealing surfaces
- Patent number 7,553,578
- Issue date Jun 30, 2009
- 3M Innovative Properties Company
- David Allen Wald
- Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
Information Patent Grant
Membrane electrode assembly with compression control gasket
- Patent number 7,217,471
- Issue date May 15, 2007
- 3M Innovative Properties Company
- David Allen Wald
- Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
Information Patent Grant
Fuel cell membrane electrode assembly with sealing surfaces
- Patent number 7,087,339
- Issue date Aug 8, 2006
- 3M Innovative Properties Company
- David Allen Wald
- Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...

Patents Applicationslast 30 patents

Information Patent Application
MEMBRANE ELECTRODE ASSEMBLY WITH COMPRESSION CONTROL GASKET
- Publication number 20070178354
- Publication date Aug 2, 2007
- 3M Innovation Properties Company
- David Allen WALD
- Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
Information Patent Application
FUEL CELL MEMBRANE ELECTRODE ASSEMBLY WITH SEALING SURFACES
- Publication number 20060233948
- Publication date Oct 19, 2006
- 3M Innovative Properties Company
- David Allen Wald
- Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
Information Patent Application
Membrane electrode assembly with compression control gasket
- Publication number 20030215690
- Publication date Nov 20, 2003
- 3M Innovative Properties Company
- David Allen Wald
- Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
Information Patent Application
Fuel cell membrane electrode assembly with sealing surfaces
- Publication number 20030211378
- Publication date Nov 13, 2003
- 3M Innovative Properties Company
- David Allen Wald
- Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...