having coiled wire tools

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Patents Grantslast 30 patents

Information Patent Grant
Device for producing gas hydrate
- Patent number 9,533,277
- Issue date Jan 3, 2017
- Mitsui Engineering & Shipbuilding Co., Ltd.
- Nobutaka Ohya
- F28 - HEAT EXCHANGE IN GENERAL
Information Patent Grant
Fouling reduction device for a tubular heat exchanger
- Patent number 6,782,943
- Issue date Aug 31, 2004
- Elf Antar France
- Claude Baudelet
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information Patent Grant
Automatic process and device for cleaning a heat exchanger for gase...
- Patent number 4,825,940
- Issue date May 2, 1989
- Etablissements Neu
- Paul Barroyer
- F28 - HEAT EXCHANGE IN GENERAL
Information Patent Grant
System for cleaning tube-type exchangers automatically during opera...
- Patent number 4,583,585
- Issue date Apr 22, 1986
- Elf France
- Patrick Estienne
- F28 - HEAT EXCHANGE IN GENERAL
Information Patent Grant
3762464
- Patent number 3,762,464
- Issue date Oct 2, 1973
- B08 - CLEANING