Helmut Graf

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Regensburg, DE

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Patents Grantslast 30 patents

Information Patent Grant
Method for producing a carrier element for semiconductor chips
- Patent number 6,088,901
- Issue date Jul 18, 2000
- Siemens Aktiengesellschaft
- Michael Huber
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Reinforced concrete containing coated steel reinforcing member
- Patent number 5,100,738
- Issue date Mar 31, 1992
- Rebar Couplerbox, Inc.
- Helmut Graf
- E04 - BUILDING