Didier Perrin

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Cormeilles en Parisis, FR

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Patents Grantslast 30 patents

Information Patent Grant
Method for producing a filter bottom for water treatment
- Patent number 6,409,944
- Issue date Jun 25, 2002
- Degremont
- Didier Perrin
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Grant
Sewage treatment plant for thickening a solid-liquid suspension
- Patent number 6,264,834
- Issue date Jul 24, 2001
- Degremont
- Patrick Bele
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL