Dick van der Helm

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Norman, OK, US

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Patents Grantslast 30 patents

Information Patent Grant
Tedanolide
- Patent number 4,743,695
- Issue date May 10, 1988
- The Board of Regents for the University of Oklahoma
- Francis J. Schmitz
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Acanthifolic acid-new antitumor and antibiotic agent
- Patent number 4,314,057
- Issue date Feb 2, 1982
- Research Corporation
- Francis J. Schmitz
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Acanthifolic acid--new anti-tumor and antibiotic agent
- Patent number 4,302,470
- Issue date Nov 24, 1981
- Research Corporation
- Francis J. Schmitz
- C07 - ORGANIC CHEMISTRY