Jean-Claude Villard

Follow

Person

Echirolles, FR

People

Patents Grantslast 30 patents

Information Patent Grant
Method of and plant for reliquefying gaseous helium
- Patent number 5,829,269
- Issue date Nov 3, 1998
- L'Air Liquide, Societe Anonyme Pour L'Etude et L'Exploitation de Procedes Geo...
- Yves Pecoud
- F25 - REFRIGERATION OR COOLING COMBINED HEATING AND REFRIGERATION SYSTEMS HEA...
Information Patent Grant
Process and installation for the cryogenic purification of hydrogen
- Patent number 5,511,382
- Issue date Apr 30, 1996
- L'Air Liquide, Societe Anonyme Pour L'Etude et L'Exploitation des Procedes Ge...
- Catherine Denis
- F25 - REFRIGERATION OR COOLING COMBINED HEATING AND REFRIGERATION SYSTEMS HEA...
Information Patent Grant
Pump impeller seals with spiral grooves
- Patent number 4,242,039
- Issue date Dec 30, 1980
- L'Air Liquide, Societe Anonyme Pour L'Etude et L'Exploitation des Procedes Ge...
- Jean-Claude Villard
- F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...