Roger K. Westerberg

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Cottag Grove, MN, US

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Patents Grantslast 30 patents

Information Patent Grant
Universal lattice for magnetic electronic article surveillance system
- Patent number 5,349,502
- Issue date Sep 20, 1994
- Minnesota Mining and Manufacturing Company
- Roger K. Westerberg
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Electronic article surveillance interrogation panel unit
- Patent number D346341
- Issue date Apr 26, 1994
- Minnesota Mining and Manufacturing Company
- Roger K. Westerberg
- D10 - Measuring, testing, or signalling instruments
Information Patent Grant
Electronic article surveillance unit
- Patent number D317272
- Issue date Jun 4, 1991
- Minnesota Mining and Manufacturing Company
- Roland W. Rubertus
- D10 - Measuring, testing, or signalling instruments
Information Patent Grant
Universal lattice for magnetic-electronic article surveillance system
- Patent number 4,994,939
- Issue date Feb 19, 1991
- Minnesota Mining and Manufacturing Company
- Roland W. Rubertus
- G08 - SIGNALLING