Hans-Henrich Stiehl

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Berlin, DE

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Patents Grantslast 30 patents

Information Patent Grant
Apparatus for measuring ions in a clean room gas flow using a spher...
- Patent number 5,506,507
- Issue date Apr 9, 1996
- Sorbios Verfahrenstechnische Gerate und Systeme GmbH
- Jorg Schwierzke
- G01 - MEASURING TESTING
Information Patent Grant
Exchangeable filter element
- Patent number 4,225,328
- Issue date Sep 30, 1980
- Delbag-Luftfilter GmbH
- Hans-Henrich Stiehl
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Grant
Filter bypass measurement section
- Patent number 4,197,098
- Issue date Apr 8, 1980
- Delbag-Luftfilter GmbH
- Hans H. Stiehl
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL