Roumen Kaltchev

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Montagnole, FR

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Patents Grantslast 30 patents

Information Patent Grant
Clarifier for liquids laden with suspended matter
- Patent number 6,312,592
- Issue date Nov 6, 2001
- Roumen Kaltchev
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Grant
Device for clarifying a charged liquid by flotation
- Patent number 6,174,435
- Issue date Jan 16, 2001
- Roumen Kaltchev
- C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE

Patents Applicationslast 30 patents

Information Patent Application
Device for screening/sieving a liquid loaded with bulk material, an...
- Publication number 20030189015
- Publication date Oct 9, 2003
- Roumen Kaltchev
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL