Christopher J. Willems

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Phoenix, AZ, US

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Patents Grantslast 30 patents

Information Patent Grant
Wheelchair pushrim
- Patent number 7,497,456
- Issue date Mar 3, 2009
- Christopher J. Willems
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE

Patents Applicationslast 30 patents

Information Patent Application
Wheelchair pushrim
- Publication number 20040103745
- Publication date Jun 3, 2004
- Christopher J. Willems
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE