Inventor · disambiguated record
Robert H. Wombles
Also filed as: WOMBLES ROBERT H
14 granted patents·1 pending application·227 citations·filing 1981–2016
93Inventor score
Files withASHLAND OIL INC5MARATHON ASHLAND PETROLEUM LLC3ASHLAND INC2KOPPERS DELAWARE INC2DELTA TECH LLC1
Top patents by PatentIndex Score
15 records- 0186US5961709AEnvironmentally improved asphalt compositions and their preparationMARATHON ASHLAND PETROLEUM LLC·Filed 1998·Granted Oct 5, 1999·40 cites·20 claims
- 0285US4456523AProcesses for producing high grade asphaltic materials from low grade bituminous materials and products resulting therefromASHLAND OIL INC·Filed 1981·Granted Jun 26, 1984·30 cites·55 claims
- 0383US7465387B2Coal tar and hydrocarbon mixture pitch and the preparation and use thereofKOPPERS DELAWARE INC·Filed 2006·Granted Dec 16, 2008·5 cites·1 claims
- 0482US9243191B1Re-refining used motor oilWOMBLES ROBERT H·Filed 2011·Granted Jan 26, 2016·9 cites·13 claims
- 0576US4659389AMethod and composition of asphaltic roofing fluxesASHLAND OIL INC·Filed 1985·Granted Apr 21, 1987·25 cites·4 claims
- 0675US5601697ADemetallation-High carbon conversion process, apparatus and asphalt productsASHLAND INC·Filed 1994·Granted Feb 11, 1997·24 cites·8 claims
- 0774US4927620AProcess for the manufacture of carbon fibers and feedstock thereforASHLAND OIL INC·Filed 1985·Granted May 22, 1990·25 cites·15 claims
- 0870US7241821B1Polymer-modified, vulcanized asphalt composition and its method of preparationMARATHON ASHLAND PETROLEUM LLC·Filed 2004·Granted Jul 10, 2007·9 cites·13 claims
- 0967US4544411AMethod and composition of asphaltic roofing fluxesASHLAND OIL INC·Filed 1984·Granted Oct 1, 1985·19 cites·25 claims
- 1065US4456524AProcess for enhancing catalytic response of asphalt oxidation catalystASHLAND OIL INC·Filed 1982·Granted Jun 26, 1984·12 cites·34 claims
- 1162US5728291ADemetallation - high carbon conversion process, apparatus and asphalt productsASHLAND INC·Filed 1996·Granted Mar 17, 1998·14 cites·8 claims
- 1257US7066997B2Coal tar and hydrocarbon mixture pitch and the preparation and use thereofKOPPERS DELAWARE INC·Filed 2002·Granted Jun 27, 2006·3 cites·4 claims
- 1357US6352637B1High coking value pitchMARATHON ASHLAND PETROLEUM LLC·Filed 1999·Granted Mar 5, 2002·12 cites·5 claims
- 1444US2005081752A1Chopped carbon fiber preform processing method using coal tar pitch binderFiled 2004·Application pending·0 cites
- 1541US10280371B2Distillation of used motor oil with distillate vaporsDELTA TECH LLC·Filed 2016·Granted May 7, 2019·0 cites·20 claims
Join the waitlist — get patent alerts
Get an alert when Robert H. Wombles files or is granted a new patent.
We store only your email — no account needed. See our privacy policy.
Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →