Hartwig Volz

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Celle, DE

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Patents Grantslast 30 patents

Information Patent Grant
Process for recovering oil from subterranean formations
- Patent number 4,589,489
- Issue date May 20, 1986
- Hartwig Volz
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Grant
Method of reducing water production
- Patent number 4,579,175
- Issue date Apr 1, 1986
- Deutsche Texaco Aktiengesellschaft
- Karl-Heinz Grodde
- E21 - EARTH DRILLING MINING
Information Patent Grant
Apparatus for mixing a solution
- Patent number 4,549,813
- Issue date Oct 29, 1985
- Deutsche Texaco Aktiengesellschaft
- Hartwig Volz
- E21 - EARTH DRILLING MINING
Information Patent Grant
Process for the recovery of petroleum from subterranean formations
- Patent number 4,282,930
- Issue date Aug 11, 1981
- Deutsche Texaco Aktiengesellschaft
- Karl-Heinz Grodde
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...