Roelof W. Liebenberg

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Johannesburg, ZA

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Patents Grantslast 30 patents

Information Patent Grant
Pentene-diphenyl-diglucoside containing compound
- Patent number 4,652,636
- Issue date Mar 24, 1987
- Roecar Holdings
- Siegfrid Drewes
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Rooperol and its derivates
- Patent number 4,644,085
- Issue date Feb 17, 1987
- Rooperol (NA) NV
- Siegfried Drewes
- C07 - ORGANIC CHEMISTRY