William Kohnen

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Claremont, CA, US

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Patents Grantslast 30 patents

Information Patent Grant
Swimming apparatus
- Patent number 10,745,093
- Issue date Aug 18, 2020
- William Kohnen
- B63 - SHIPS OR OTHER WATERBORNE VESSELS RELATED EQUIPMENT
Information Patent Grant
Sealable dome assembly
- Patent number 8,656,853
- Issue date Feb 25, 2014
- SEAmagine Hydrospace Corporation
- William Kohnen
- B63 - SHIPS OR OTHER WATERBORNE VESSELS RELATED EQUIPMENT
Information Patent Grant
Underwater craft having sealed and inflatable buoyancy chambers
- Patent number 6,321,676
- Issue date Nov 27, 2001
- SEAmagine Hydrospace Corporation
- William Kohnen
- B63 - SHIPS OR OTHER WATERBORNE VESSELS RELATED EQUIPMENT
Information Patent Grant
Hybrid boat and underwater watercraft
- Patent number 5,704,309
- Issue date Jan 6, 1998
- SEAmagine Hydrospace Corporation
- William Kohnen
- B63 - SHIPS OR OTHER WATERBORNE VESSELS RELATED EQUIPMENT

Patents Applicationslast 30 patents

Information Patent Application
SWIMMING APPARATUS
- Publication number 20190039703
- Publication date Feb 7, 2019
- William Kohnen
- B63 - SHIPS OR OTHER WATERBORNE VESSELS RELATED EQUIPMENT
Information Patent Application
SEALABLE DOME ASSEMBLY
- Publication number 20120073490
- Publication date Mar 29, 2012
- SEAmagine Hydrospace Corporation
- William Kohnen
- B63 - SHIPS OR OTHER WATERBORNE VESSELS RELATED EQUIPMENT