Kent N. Maffitt

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Minneapolis, MN, US

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Patents Grantslast 30 patents

Information Patent Grant
Protuberant optical recording medium
- Patent number 4,470,053
- Issue date Sep 4, 1984
- Minnesota Mining and Manufacturing Company
- Kent N. Maffitt
- G11 - INFORMATION STORAGE
Information Patent Grant
Protuberant optical recording medium
- Patent number 4,430,659
- Issue date Feb 7, 1984
- Minnesota Mining and Manufacturing Company
- Kent N. Maffitt
- G11 - INFORMATION STORAGE
Information Patent Grant
Method of producing a microstructured surface and the article produ...
- Patent number 4,340,276
- Issue date Jul 20, 1982
- Minnesota Mining and Manufacturing Company
- Kent N. Maffitt
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information Patent Grant
Polymeric optical element having antireflecting surface
- Patent number 4,153,654
- Issue date May 8, 1979
- Minnesota Mining and Manufacturing Company
- Kent N. Maffitt
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information Patent Grant
Polymeric optical element having antireflecting surface
- Patent number 4,114,983
- Issue date Sep 19, 1978
- Minnesota Mining and Manufacturing Company
- Kent N. Maffitt
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL