Helmut Schellong

Follow

Person

Duisburg, DE

People

Patents Grantslast 30 patents

Information Patent Grant
Process and apparatus for ensuring the operability of gas seals in...
- Patent number 5,765,998
- Issue date Jun 16, 1998
- Mannesmann Aktiengesellschaft
- Wolfgang Zacharias
- F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
Information Patent Grant
Shaft seal assembly, especially for high-pressure turbocompressors
- Patent number 5,158,431
- Issue date Oct 27, 1992
- Mannesmann AG
- Helmut Schellong
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Grant
Shaft seal assembly, especially for high-pressure turbocompressors
- Patent number 5,149,249
- Issue date Sep 22, 1992
- Mannesmann AG
- Helmut Schellong
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...