Lowell E. Christensen

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Lake Elmo, MN, US

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Patents Grantslast 30 patents

Information Patent Grant
Self-supporting pleated filter media
- Patent number 8,419,817
- Issue date Apr 16, 2013
- 3M Innovative Properties Company
- Douglas C. Sundet
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Grant
Self-supporting pleated filter media
- Patent number 7,896,940
- Issue date Mar 1, 2011
- 3M Innovative Properties Company
- Douglas C. Sundet
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Grant
Method of forming self-supporting pleated filter media
- Patent number 7,235,115
- Issue date Jun 26, 2007
- 3M Innovative Properties Company
- Dean R. Duffy
- Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC

Patents Applicationslast 30 patents

Information Patent Application
SELF-SUPPORTING PLEATED FILTER MEDIA
- Publication number 20110138760
- Publication date Jun 16, 2011
- 3M Innovative Properties Company
- Douglas C. Sundet
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Application
Self-supporting pleated filter media
- Publication number 20060005517
- Publication date Jan 12, 2006
- Douglas C. Sundet
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Application
Method of forming self-supporting pleated filter media
- Publication number 20060005518
- Publication date Jan 12, 2006
- Dean R. Duffy
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL