Holger Gutschmidt

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Neu Wulmstorf, DE

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Patents Grantslast 30 patents

Information Patent Grant
Sealing arrangement for shaft and tunnel constructions
- Patent number 9,222,358
- Issue date Dec 29, 2015
- Daetwyler Sealing Technologies Deutschland GmbH
- Heiko Hoeft
- E21 - EARTH DRILLING MINING
Information Patent Grant
Sealing assembly for tunnel construction sections
- Patent number 6,592,296
- Issue date Jul 15, 2003
- Phoenix
- Holger Gutschmidt
- E21 - EARTH DRILLING MINING
Information Patent Grant
Sealing arrangement
- Patent number 6,575,664
- Issue date Jun 10, 2003
- Phoenix AG
- Dieter Kassel
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Grant
Sealing device
- Patent number 6,434,904
- Issue date Aug 20, 2002
- Phoenix Aktiengesellschaft
- Holger Gutschmidt
- E21 - EARTH DRILLING MINING
Information Patent Grant
Seal arrangement for tubular tunnel segments
- Patent number 5,888,023
- Issue date Mar 30, 1999
- Phoenix Aktiengesellschaft
- Werner Grabe
- E21 - EARTH DRILLING MINING
Information Patent Grant
Device and process for producing the corners of sealing frames
- Patent number 5,648,036
- Issue date Jul 15, 1997
- Phoenix Aktiengesellschaft
- Siegfried Glang
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL

Patents Applicationslast 30 patents

Information Patent Application
SEALING ARRANGEMENT FOR SHAFT AND TUNNEL CONSTRUCTIONS
- Publication number 20120328369
- Publication date Dec 27, 2012
- PHOENIX DICHTUNGSTECHNIK GMBH
- Heiko Hoeft
- E21 - EARTH DRILLING MINING
Information Patent Application
Sealing arrangement composed of different types of polymer material
- Publication number 20090148658
- Publication date Jun 11, 2009
- PHOENIX DICHTUNGSTECHNIK GMBH
- Holger Gutschmidt
- E21 - EARTH DRILLING MINING
Information Patent Application
Seal system
- Publication number 20030168819
- Publication date Sep 11, 2003
- Holger Gutschmidt
- E21 - EARTH DRILLING MINING
Information Patent Application
Sealing assembly for tunnel construction sections
- Publication number 20020164211
- Publication date Nov 7, 2002
- Holger Gutschmidt
- E21 - EARTH DRILLING MINING