David J. Spring

Person

Slough, GB

People

Patents Grantslast 30 patents

Information Patent Grant
Flame sensors and methods of sensing flame
- Patent number 5,464,980
- Issue date Nov 7, 1995
- Kidde-Graviner Limited
- David J. Spring
- G01 - MEASURING TESTING
Information Patent Grant
Pyrotechnic device
- Patent number 4,719,857
- Issue date Jan 19, 1988
- Pains-Wessex Limited
- David J. Spring
- C06 - EXPLOSIVES MATCHES
Information Patent Grant
Cooling apparatus
- Patent number 4,713,101
- Issue date Dec 15, 1987
- Graviner Limited
- David J. Spring
- C06 - EXPLOSIVES MATCHES
Information Patent Grant
Detection of fires and explosions
- Patent number 4,694,172
- Issue date Sep 15, 1987
- Graviner Limited
- Brian D. Powell
- G08 - SIGNALLING
Information Patent Grant
Alicyclic amides having a physiological cooling effect
- Patent number 4,318,900
- Issue date Mar 9, 1982
- Wilkinson Sword Limited
- David G. Rowsell
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information Patent Grant
Acyclic carboxamides having a physiological cooling effect
- Patent number 4,296,255
- Issue date Oct 20, 1981
- Wilkinson Sword Limited
- David G. Roswell
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information Patent Grant
Alicyclic amides having a physiological cooling effect
- Patent number 4,248,859
- Issue date Feb 3, 1981
- Wilkinson Sword Limited
- David G. Rowsell
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information Patent Grant
Acyclic carboxamides having a physiological cooling effect
- Patent number 4,230,688
- Issue date Oct 28, 1980
- Wilkinson Sword Limited
- David G. Rowsell
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information Patent Grant
N-substituted paramenthane carboxamides
- Patent number 4,226,988
- Issue date Oct 7, 1980
- Wilkinson Sword Limited
- Hugh R. Watson
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information Patent Grant
N-substituted paramenthane carboxamides
- Patent number 4,193,936
- Issue date Mar 18, 1980
- Wilkinson Sword Limited
- Hugh R. Watson
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information Patent Grant
Compositions having a physiological cooling effect
- Patent number 4,190,643
- Issue date Feb 26, 1980
- Wilkinson Sword Limited
- Hugh R. Watson
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information Patent Grant
N-Substituted paramenthane carboxamides
- Patent number 4,178,459
- Issue date Dec 11, 1979
- Wilkinson Sword Limited
- Hugh R. Watson
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information Patent Grant
Acyclic carboxamides having a physiological cooling effect
- Patent number 4,153,679
- Issue date May 8, 1979
- Wilkinson Sword Limited
- David G. Rowsell
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information Patent Grant
N-substituted paramenthane carboxamides
- Patent number 4,150,052
- Issue date Apr 17, 1979
- Wilkinson Sword Limited
- Hugh R. Watson
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information Patent Grant
P-Menthane carboxamides having a physiological cooling effect
- Patent number 4,136,163
- Issue date Jan 23, 1979
- Wilkinson Sword Limited
- Hugh R. Watson
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE

Patents Applicationslast 30 patents

Information Patent Application
Fire protection systems and methods
- Publication number 20040163826
- Publication date Aug 26, 2004
- David John Spring
- A62 - LIFE-SAVING FIRE-FIGHTING

David J. Spring

Person

Patents Grantslast 30 patents

Flame sensors and methods of sensing flame

Pyrotechnic device

Cooling apparatus

Detection of fires and explosions

Alicyclic amides having a physiological cooling effect

Acyclic carboxamides having a physiological cooling effect

Alicyclic amides having a physiological cooling effect

Acyclic carboxamides having a physiological cooling effect

N-substituted paramenthane carboxamides

N-substituted paramenthane carboxamides

Compositions having a physiological cooling effect

N-Substituted paramenthane carboxamides

Acyclic carboxamides having a physiological cooling effect

N-substituted paramenthane carboxamides

P-Menthane carboxamides having a physiological cooling effect

Patents Applicationslast 30 patents

Fire protection systems and methods