Hans-Peter Meyen

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Wolpertswende, DE

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Patents Grantslast 30 patents

Information Patent Grant
Annular bit having a center drill
- Patent number 5,931,614
- Issue date Aug 3, 1999
- Hawera Probst GmbH
- Hans-Peter Meyen
- B28 - WORKING CEMENT, CLAY, OR STONE
Information Patent Grant
Drill bit for the rotary-percussive drilling of preferably rock, co...
- Patent number 5,791,424
- Issue date Aug 11, 1998
- Hawera Probst GmbH
- Bernhard Moser
- B28 - WORKING CEMENT, CLAY, OR STONE
Information Patent Grant
Drilling tool for rotary percussion drilling
- Patent number 5,788,430
- Issue date Aug 4, 1998
- Hawera Probst GmbH
- Hans-Peter Meyen
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Drill bit tube
- Patent number 5,676,501
- Issue date Oct 14, 1997
- Hawera Probst GmbH
- Wolfgang Peetz
- B28 - WORKING CEMENT, CLAY, OR STONE