Inventor · disambiguated record
Lawrence J. Karas
Also filed as: KARAS LAWRENCE J · KARAS LAWRENCE JOHN
27 granted patents·5 pending applications·488 citations·filing 1987–2020
96Inventor score
Files withARCO CHEM TECH12ECOLAB USA INC8LYONDELL CHEMICAL TECH LP3ATLANTIC RICHFIELD CO2ARNOLD STEPHEN CRAIG1
Top patents by PatentIndex Score
32 records- 0198US5308365ADiesel fuelARCO CHEM TECH·Filed 1993·Granted May 3, 1994·119 cites·9 claims
- 0296US6376731B1Selective olefin oligomerizationARCO CHEM TECH·Filed 2000·Granted Apr 23, 2002·88 cites·3 claims
- 0394US5877372AIsobutylene oligomerization using isooctane diluentARCO CHEM TECH·Filed 1997·Granted Mar 2, 1999·97 cites·3 claims
- 0493US10196343B2Hydrogen sulfide scavengersECOLAB USA INC·Filed 2016·Granted Feb 5, 2019·6 cites·3 claims
- 0591US7314545B2Desulfurization processLYONDELL CHEMICAL TECH LP·Filed 2004·Granted Jan 1, 2008·49 cites·11 claims
- 0689US9523045B2Hydrogen sulfide scavengersECOLAB USA INC·Filed 2014·Granted Dec 20, 2016·7 cites·3 claims
- 0785US6414085B1Polyester resins based on terephthalic acid and 2-methyl-1,3-propanediol and processes for the preparation thereofARCO CHEM TECH·Filed 2000·Granted Jul 2, 2002·22 cites·31 claims
- 0884US6417412B1Purification of tertiary butyl alcoholARCO CHEM TECH·Filed 2001·Granted Jul 9, 2002·13 cites·3 claims
- 0983US8933284B2Process for the production of butadieneLUMMUS TECHNOLOGY INC·Filed 2012·Granted Jan 13, 2015·2 cites·13 claims
- 1080US8293960B2Process for the production of butadieneARNOLD STEPHEN CRAIG·Filed 2009·Granted Oct 23, 2012·3 cites·17 claims
- 1177US10442755B2Preparation of new stable hydrogen sulfide scavengers useful in both water as well as oil medium applicationsECOLAB USA INC·Filed 2017·Granted Oct 15, 2019·1 cites·12 claims
- 1276US6555623B1Preparation of unsaturated polyestersARCO CHEM TECH·Filed 2002·Granted Apr 29, 2003·16 cites·24 claims
- 1373US4736795AComposition and process for enhanced oil recoveryATLANTIC RICHFIELD CO·Filed 1987·Granted Apr 12, 1988·25 cites·4 claims
- 1471US11339118B2Hydrogen sulfide scavengersECOLAB USA INC·Filed 2020·Granted May 24, 2022·0 cites·3 claims
- 1570US10703710B2Hydrogen sulfide scavengersECOLAB USA INC·Filed 2018·Granted Jul 7, 2020·0 cites·1 claims
- 1668US10669228B2Preparation of new stable hydrogen sulfide scavengers useful in both water as well as oil medium applicationsECOLAB USA INC·Filed 2019·Granted Jun 2, 2020·0 cites·5 claims
- 1766US5994578AEster preparationARCO CHEM TECH·Filed 1998·Granted Nov 30, 1999·9 cites·2 claims
- 1857US7270742B2Organosulfur oxidation processLYONDELL CHEMICAL TECH LP·Filed 2003·Granted Sep 18, 2007·5 cites·21 claims
- 1956US7022885B2Purification on methyl tertiary butyl etherARCO CHEM TECH·Filed 2002·Granted Apr 4, 2006·1 cites·3 claims
- 2055US6242640B1Tertiary alkyl ester preparation using large-pore zeolite catalystsARCO CHEM TECH·Filed 1999·Granted Jun 5, 2001·5 cites·7 claims
- 2153US11499108B2Complete removal of solids during hydrogen sulfide scavenging operations using a scavenger and a Michael acceptorCHAMPIONX USA INC·Filed 2020·Granted Nov 15, 2022·0 cites·19 claims
- 2252US6194602B1Tertiary alkyl ester preparationARCO CHEM TECH·Filed 1998·Granted Feb 27, 2001·4 cites·8 claims
- 2351US2008047875A1Desulfurization processLYONDELL CHEMICAL TECH LP·Filed 2007·Application pending·0 cites
- 2449US5258049ADiesel fuel compositionARCO CHEM TECH·Filed 1993·Granted Nov 2, 1993·11 cites·3 claims
- 2547US2011155646A1Process for removing hydrogen sulfide in crude oilKARAS LAWRENCE JOHN·Filed 2008·Application pending·0 cites
- 2645US2009242461A1Hydrogen sulfide scavengers and methods for removing hydrogen sulfide from asphaltELDIN SHERIF·Filed 2008·Application pending·0 cites
- 2744US10538710B2Hydrogen sulfide scavengersECOLAB USA INC·Filed 2018·Granted Jan 21, 2020·0 cites·17 claims
- 2842US5081268AProcess for the preparation of oxetanes from 1,3-glycol monosulfatesARCO CHEM TECH·Filed 1990·Granted Jan 14, 1992·2 cites·50 claims
- 2941US10336950B2Antifouling and hydrogen sulfide scavenging compositions and methodsECOLAB USA INC·Filed 2017·Granted Jul 2, 2019·0 cites·15 claims
- 3040US2012255914A1Methods for treating wastewaterKAPLAN GREGORY·Filed 2011·Application pending·0 cites
- 3139US2004178121A1Organosulfur oxidation processFiled 2003·Application pending·0 cites
- 3230US4944346AEther sulfoxide compounds for enhanced oil recoveryATLANTIC RICHFIELD CO·Filed 1989·Granted Jul 31, 1990·3 cites·7 claims
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