Jean Bonnefous

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La Bruffiere, FR

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Patents Grantslast 30 patents

Information Patent Grant
Butterfly valve
- Patent number 6,929,243
- Issue date Aug 16, 2005
- Defontaine
- Bruno Maraud
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Grant
System for assembling at least two pressurized fluid control members
- Patent number 6,318,409
- Issue date Nov 20, 2001
- S.A. Defontaine
- Jean Bonnefous
- F15 - FLUID-PRESSURE ACTUATORS HYDRAULICS OR PNEUMATICS IN GENERAL
Information Patent Grant
Valve with improved piston with elastomer O-ring
- Patent number 6,279,602
- Issue date Aug 28, 2001
- Defontaine
- Jean Bonnefous
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Grant
Valve with inflatable membrane
- Patent number 6,089,255
- Issue date Jul 18, 2000
- S.A. Defontaine
- Jean Bonnefous
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Grant
Valve with a floating stop seal for high flow rates
- Patent number 5,201,490
- Issue date Apr 13, 1993
- Defontaine S.A.
- Bruno Maraud
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...

Patents Applicationslast 30 patents

Information Patent Application
Butterfly valve
- Publication number 20040026650
- Publication date Feb 12, 2004
- Bruno Maraud
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Application
Starter flywheel with a ring gear being fixed via its radial surface
- Publication number 20030145676
- Publication date Aug 7, 2003
- Jean Bonnefous
- F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information Patent Application
Anti-noise starter flywheel
- Publication number 20030136217
- Publication date Jul 24, 2003
- Jean Bonnefous
- F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS