Michael J. Hawker

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Lincoln, GB

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Patents Grantslast 30 patents

Information Patent Grant
Pilot-operated hydraulic antilock modulator
- Patent number 5,007,455
- Issue date Apr 16, 1991
- Clayton Dewandre Co., Ltd.
- Michael J. Hawker
- B60 - VEHICLES IN GENERAL
Information Patent Grant
Solenoid operated hydraulic control valve
- Patent number 4,875,742
- Issue date Oct 24, 1989
- Clayton Dewandre Co. Ltd.
- Michael J. Hawker
- B60 - VEHICLES IN GENERAL
Information Patent Grant
Master cylinder piston with floating sealing ring recuperation valve
- Patent number 4,866,938
- Issue date Sep 19, 1989
- Clayton Dewandre Co. Ltd.
- Colm M. P. Keegan
- B60 - VEHICLES IN GENERAL
Information Patent Grant
Solenoid operated valves
- Patent number 4,486,053
- Issue date Dec 4, 1984
- Clayton Dewandre Company Limited
- Michael J. Hawker
- B60 - VEHICLES IN GENERAL
Information Patent Grant
Hose coupling
- Patent number 4,285,364
- Issue date Aug 25, 1981
- Clayton Dewandre Co. Ltd.
- Michael J. Hawker
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Grant
Spool type brake valves
- Patent number 4,260,197
- Issue date Apr 7, 1981
- Clayton Dewandre Company Limited
- Michael J. Hawker
- B60 - VEHICLES IN GENERAL
Information Patent Grant
Full power hydraulic braking systems for tractor-trailer combinations
- Patent number 4,236,762
- Issue date Dec 2, 1980
- Clayton Dewandre Company Limited
- Michael J. Hawker
- B60 - VEHICLES IN GENERAL