Hellmut Herrmann

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Kassel, DE

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Patents Grantslast 30 patents

Information Patent Grant
Quench cooler
- Patent number 5,816,322
- Issue date Oct 6, 1998
- ABB Lummus Global Inc.
- John Vincent Albano
- F28 - HEAT EXCHANGE IN GENERAL
Information Patent Grant
Thermal decoking of cracking ovens and coolers
- Patent number 5,536,390
- Issue date Jul 16, 1996
- Schmidt'sche Heissdampf-GmbH
- Hellmut Herrmann
- C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
Information Patent Grant
Quench cooler
- Patent number 5,464,057
- Issue date Nov 7, 1995
- John V. Albano
- F28 - HEAT EXCHANGE IN GENERAL
Information Patent Grant
Process for the cleaning of steam generator heating surfaces
- Patent number 5,007,970
- Issue date Apr 16, 1991
- Schmidt'sche Heissdampf-GmbH
- Hellmut A. Herrmann
- F28 - HEAT EXCHANGE IN GENERAL
Information Patent Grant
Heat exchanger
- Patent number 4,867,234
- Issue date Sep 19, 1989
- Schmidt'sche Heissdampf-GmbH
- Hellmut A. Herrmann
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR