Jean-Paul Barbier

Follow

Person

Fontenay-le-Fleury, FR

People

Patents Grantslast 30 patents

Information Patent Grant
Process of gaseous opalization of light bulbs
- Patent number 4,438,152
- Issue date Mar 20, 1984
- L'Air Liquide, Societe Anonyme Pour L'Etude et L'Exploitation des Procedes Ge...
- Jean-Paul Barbier
- C03 - GLASS MINERAL OR SLAG WOOL
Information Patent Grant
Process for gaseously opalizing bulbs
- Patent number 4,374,157
- Issue date Feb 15, 1983
- L'Air Liquide
- Jean-Paul Barbier
- C03 - GLASS MINERAL OR SLAG WOOL