Lyonnaise des Eaux-Dumez S.A.

Follow

Organization

Nanterre, FR

Organizations

Please log in for detailed analytics

Patents Grantslast 30 patents

Information Patent Grant
Method of purifying waste water biologically
- Patent number 5,900,150
- Issue date May 4, 1999
- Lyonnaise des Eaux-Dumez S.A.
- Christian Fayoux
- C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
Information Patent Grant
Method of biologically purifying liquids contaminated with impurities
- Patent number 5,395,528
- Issue date Mar 7, 1995
- Lyonnaise des Eaux-Dumez S.A.
- Jean-Marc Audic
- C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
Information Patent Grant
Process and apparatus for treating waste liquids
- Patent number 5,364,534
- Issue date Nov 15, 1994
- Lyonnaise Des Eaux - Dumez
- Christophe Anselme
- C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
Information Patent Grant
Method of changing operating modes in automatic water filtering app...
- Patent number 5,066,402
- Issue date Nov 19, 1991
- Lyonnaise Des Eaux-Dumez
- Christophe Anselme
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL

Patents Applicationslast 30 patents

Trademarklast 30 trademarks

Information Trademark
74223145 - LYONNAISE DES EAUX DUMEZ
- Serial number 74223145
- Registration number 1752577
- Filing date Nov 19, 1991
- Lyonnaise des Eaux-Dumez
- 19 - Building materials (non-metallic)
Information Trademark
74223147 - LYONNAISE DES EAUX DUMEZ
- Serial number 74223147
- Registration number 1758679
- Filing date Nov 19, 1991
- Lyonnaise des Eaux-Dumez
- 35 - Advertising