Donald R. O'Keefe

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Roseville, MN, US

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Patents Grantslast 30 patents

Information Patent Grant
Repaired scratched and/or abraded transparent substrates having pro...
- Patent number 6,482,488
- Issue date Nov 19, 2002
- 3M Innovative Properties Company
- Jeffrey R. Janssen
- E06 - DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL LADDERS
Information Patent Grant
Graffiti and/or environmental protective article having removable s...
- Patent number 6,461,709
- Issue date Oct 8, 2002
- 3M Innovative Properties Company
- Jeffrey R. Janssen
- B32 - LAYERED PRODUCTS
Information Patent Grant
Method of repairing scratched and/or abraded transparent substrates...
- Patent number 6,180,245
- Issue date Jan 30, 2001
- 3M Innovative Properties Company
- Jeffrey R. Janssen
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL

Patents Applicationslast 30 patents

Information Patent Application
Graffiti and/or environmental protective article having removable s...
- Publication number 20030087054
- Publication date May 8, 2003
- 3M Innovative Properties Company
- Jeffrey R. Janssen
- B32 - LAYERED PRODUCTS
Information Patent Application
Method of repairing scratched and/or abraded transparent substrates...
- Publication number 20010000076
- Publication date Mar 29, 2001
- Jeffrey R. Janssen
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL