John T. Griffith

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Clwyd, GB

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Patents Grantslast 30 patents

Information Patent Grant
Induction heater having a conductor with a radial heating element
- Patent number 5,455,402
- Issue date Oct 3, 1995
- EA Technology Ltd.
- John T. Griffith
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information Patent Grant
Induction heater
- Patent number 5,274,207
- Issue date Dec 28, 1993
- Electricity Association Technology Limited
- John T. Griffith
- H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Rotor with internal electrical heating element
- Patent number 5,135,355
- Issue date Aug 4, 1992
- Electricity Association Technology Limited
- Michael I. Colley
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Grant
Induction heater coupling control by core saturation
- Patent number 4,843,201
- Issue date Jun 27, 1989
- The Electricity Council
- John T. Griffith
- H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Induction apparatus for heating and mixing a fluid
- Patent number 4,678,881
- Issue date Jul 7, 1987
- The Electricity Council
- John T. Griffith
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Grant
Induction heater having an alternating current conductor
- Patent number 4,629,844
- Issue date Dec 16, 1986
- The Electricity Council
- John T. Griffith
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL