Heiko Höft

Follow

Person

Hamburg, DE

People

Patents Grantslast 30 patents

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
Electrically insulating rail system
- Patent number 6,471,138
- Issue date Oct 29, 2002
- Phoenix Aktiengesellschaft
- Helmuth Blank
- E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES

Patents Applicationslast 30 patents

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
Sealing assembly for tunnel construction sections
- Publication number 20020164211
- Publication date Nov 7, 2002
- Holger Gutschmidt
- E21 - EARTH DRILLING MINING