John R. Johnson

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Woodbury, MN, US

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Patents Grantslast 30 patents

Information Patent Grant
Optical disk mold tooling for reduced edge wedge
- Patent number 7,114,947
- Issue date Oct 3, 2006
- Imation Corp.
- Chad R. Sandstrom
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information Patent Grant
Optical disk mold tooling for reduced edge wedge
- Patent number 6,752,611
- Issue date Jun 22, 2004
- Imation Corp.
- Chad R. Sandstrom
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL

Patents Applicationslast 30 patents

Information Patent Application
Optical disk mold tooling for reduced edge wedge
- Publication number 20040218510
- Publication date Nov 4, 2004
- Chad R. Sandstrom
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information Patent Application
Optical disk mold tooling for reduced edge wedge
- Publication number 20020058084
- Publication date May 16, 2002
- Chad R. Sandstrom
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL