William R. Bertelsen

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Rock Island, IL, US

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Patents Grantslast 30 patents

Information Patent Grant
Wing assembly and aircraft
- Patent number 7,510,143
- Issue date Mar 31, 2009
- William D. Bertelsen
- B64 - AIRCRAFT AVIATION COSMONAUTICS
Information Patent Grant
Airstream control system for a hovercraft
- Patent number 6,715,574
- Issue date Apr 6, 2004
- Aeromobile, Inc.
- William R Bertelsen
- B60 - VEHICLES IN GENERAL
Information Patent Grant
Dynamic seals for vehicle air suspensions
- Patent number 4,778,019
- Issue date Oct 18, 1988
- William R. Bertelsen
- B62 - LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
Information Patent Grant
Segmented air-track apparatus
- Patent number 4,530,545
- Issue date Jul 23, 1985
- William R. Bertelsen
- B62 - LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
Information Patent Grant
Arc wing aircraft
- Patent number 4,415,131
- Issue date Nov 15, 1983
- Bertelsen Inc.
- William R. Bertelsen
- B64 - AIRCRAFT AVIATION COSMONAUTICS
Information Patent Grant
Air suspension system for vehicle track
- Patent number 4,283,094
- Issue date Aug 11, 1981
- William R. Bertelsen
- B62 - LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
Information Patent Grant
Surface effect vehicles and guideways therefor
- Patent number 4,175,637
- Issue date Nov 27, 1979
- William R. Bertelsen
- B60 - VEHICLES IN GENERAL

Patents Applicationslast 30 patents

Information Patent Application
AIRSTREAM CONTROL SYSTEM FOR A HOVERCRAFT
- Publication number 20040074684
- Publication date Apr 22, 2004
- William R. Bertelsen
- B60 - VEHICLES IN GENERAL