Donald F. Rugen

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Wilmington, DE, US

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Patents Grantslast 30 patents

Information Patent Grant
Oil recovery agent
- Patent number 4,743,385
- Issue date May 10, 1988
- Sun Refining and Marketing Company
- Howard P. Angstadt
- E21 - EARTH DRILLING MINING
Information Patent Grant
Plasticized vinyl resins containing a linear mono C.sub.12 alkyl di...
- Patent number 4,294,742
- Issue date Oct 13, 1981
- Sun Oil Company of Pennsylvania
- Donald F. Rugen
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Sec-ylbiphenyl composition and process for preparing the same
- Patent number 4,287,074
- Issue date Sep 1, 1981
- Sun Oil Company of Pennsylvania
- Harold W. Earhart
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Process for purification of p-isopropyl phenol
- Patent number 4,247,721
- Issue date Jan 27, 1981
- Sun Oil Company of Pennsylvania
- Donald F. Rugen
- C07 - ORGANIC CHEMISTRY