Martin Rathgebe

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Chicago, IL, US

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Patents Grantslast 30 patents

Information Patent Grant
Method and apparatus for determining a position of a movable barrier
- Patent number 6,878,927
- Issue date Apr 12, 2005
- The Chamberlain Group, Inc.
- Alan Dane Smith
- G01 - MEASURING TESTING

Patents Applicationslast 30 patents

Information Patent Application
Method and apparatus for determining a position of a movable barrier
- Publication number 20040169133
- Publication date Sep 2, 2004
- The Chamberlain Group, Inc.
- Alan Dane Smith
- H03 - BASIC ELECTRONIC CIRCUITRY