Assignee
MERICHEM CO
US·56 granted patents·3 pending applications·774 citations·filing 1975–2022
Top patents by PatentIndex Score
59 records- 0192US7875185B2Removal of residual sulfur compounds from a caustic streamMERICHEM CO·Filed 2007·Granted Jan 25, 2011·31 cites·11 claims
- 0292US6960291B2Naphtha desulfurization methodMERICHEM CO·Filed 2002·Granted Nov 1, 2005·50 cites·24 claims
- 0389US10858597B2Contactor and separation apparatus and process of using sameMERICHEM CO·Filed 2020·Granted Dec 8, 2020·2 cites·5 claims
- 0489US8815083B2Treating sulfur containing hydrocarbons recovered from hydrocarbonaceous depositsMERICHEM CO·Filed 2012·Granted Aug 26, 2014·9 cites·19 claims
- 0589US3992156AMass transfer apparatusMERICHEM CO·Filed 1975·Granted Nov 16, 1976·90 cites·21 claims
- 0689US3977829ALiquid-liquid mass transfer apparatusMERICHEM CO·Filed 1975·Granted Aug 31, 1976·80 cites·6 claims
- 0788US11524283B2Catalytic carbon fiber preparation methodsMERICHEM CO·Filed 2020·Granted Dec 13, 2022·2 cites·20 claims
- 0888US10456711B1Liquid-liquid mass transfer process and apparatusMERICHEM CO·Filed 2018·Granted Oct 29, 2019·6 cites·18 claims
- 0987US10518194B2Contactor and separation apparatus and process of using sameMERICHEM CO·Filed 2019·Granted Dec 31, 2019·2 cites·2 claims
- 1086US10661220B2Hydrogen sulfide removal processMERICHEM CO·Filed 2018·Granted May 26, 2020·3 cites·20 claims
- 1185US11517889B2Catalytic carbon fiber contactorMERICHEM CO·Filed 2020·Granted Dec 6, 2022·2 cites·18 claims
- 1285US4753722ATreatment of mercaptan-containing streams utilizing nitrogen based promotersMERICHEM CO·Filed 1986·Granted Jun 28, 1988·77 cites·50 claims
- 1384US10974190B2Hydrogen sulfide removal processMERICHEM CO·Filed 2020·Granted Apr 13, 2021·2 cites·19 claims
- 1483US7279148B1Oxidizer and oxidation process for a desulphurization processMERICHEM CO·Filed 2007·Granted Oct 9, 2007·5 cites·2 claims
- 1581US10633599B2Contactor and separation apparatus and process of using sameMERICHEM CO·Filed 2018·Granted Apr 28, 2020·1 cites·13 claims
- 1681US10300407B2Contactor and separation apparatus and process of using sameMERICHEM CO·Filed 2017·Granted May 28, 2019·3 cites·7 claims
- 1781US8454824B2Single vertical tower for treating a stream of rich caustic containing mercaptan compoundsMERICHEM CO·Filed 2012·Granted Jun 4, 2013·5 cites·7 claims
- 1881US7344682B1Oxidizer and oxidation process for a desulphurization processMERICHEM CO·Filed 2007·Granted Mar 18, 2008·5 cites·11 claims
- 1981US7014751B2Continuous liquid hydrocarbon treatment methodMERICHEM CO·Filed 2002·Granted Mar 21, 2006·20 cites·24 claims
- 2080US7029573B2Composition and control method for treating hydrocarbonMERICHEM CO·Filed 2002·Granted Apr 18, 2006·18 cites·20 claims
- 2178US9458392B2Hydrocarbon treatment processMERICHEM CO·Filed 2014·Granted Oct 4, 2016·4 cites·8 claims
- 2276US11826741B2Catalytic carbon fiber preparation methodsMERICHEM CO·Filed 2022·Granted Nov 28, 2023·0 cites·18 claims
- 2375US5997731AProcess for treating an effluent alkaline stream having sulfur-containing and phenolic compoundsMERICHEM CO·Filed 1998·Granted Dec 7, 1999·52 cites·17 claims
- 2474US4666689AProcess for regenerating an alkaline stream containing mercaptan compoundsMERICHEM CO·Filed 1986·Granted May 19, 1987·45 cites·15 claims
- 2572US4675100ATreatment of sour hydrocarbon distillateMERICHEM CO·Filed 1985·Granted Jun 23, 1987·32 cites·10 claims
- 2671US11248175B2Contactor and separation apparatus and process of using sameMERICHEM CO·Filed 2020·Granted Feb 15, 2022·0 cites·9 claims
- 2771US7833499B2Separation processMERICHEM CO·Filed 2007·Granted Nov 16, 2010·8 cites·16 claims
- 2871US5705074ARemoval of acidic organic contaminants from refinery waste waterMERICHEM CO·Filed 1996·Granted Jan 6, 1998·51 cites·7 claims
- 2969US8597375B2Three phase sulfur separation method with interface controlMERICHEM CO·Filed 2013·Granted Dec 3, 2013·2 cites·3 claims
- 3069US7828962B2Apparatus for treating a waste streamMERICHEM CO·Filed 2008·Granted Nov 9, 2010·3 cites·8 claims
- 3169US5961819ATreatment of sour hydrocarbon distillate with continuous recausticizationMERICHEM CO·Filed 1998·Granted Oct 5, 1999·43 cites·10 claims
- 3269US5354482AProcess and apparatus for oxidizing industrial spent caustic and effecting gas-liquid mass transfer and separationMERICHEM CO·Filed 1993·Granted Oct 11, 1994·36 cites·20 claims
- 3367US10946309B2Liquid-liquid mass transfer process and apparatusMERICHEM CO·Filed 2019·Granted Mar 16, 2021·0 cites·20 claims
- 3467US8906230B2Apparatus for treating a waste streamMERICHEM CO·Filed 2012·Granted Dec 9, 2014·1 cites·9 claims
- 3567US8372365B2High pressure reduction-oxidation desulfurization processMERICHEM CO·Filed 2010·Granted Feb 12, 2013·1 cites·5 claims
- 3666US11826736B2Catalytic carbon fiber preparation methodsMERICHEM CO·Filed 2021·Granted Nov 28, 2023·0 cites·22 claims
- 3763US7951353B1Flow control method and apparatus for a continuous multiple zone mass transferMERICHEM CO·Filed 2010·Granted May 31, 2011·2 cites·15 claims
- 3860US11072746B2Hydrogen sulfide removal processMERICHEM CO·Filed 2020·Granted Jul 27, 2021·0 cites·13 claims
- 3960US10336949B2Oxidation processMERICHEM CO·Filed 2018·Granted Jul 2, 2019·0 cites·9 claims
- 4060US4193967ALiquid sealing apparatus for sealing vapors in a tankMERICHEM CO·Filed 1978·Granted Mar 18, 1980·15 cites·8 claims
- 4160US2023416420A1Method Of Preparing Functional PolymersMERICHEM CO·Filed 2022·Application pending·0 cites
- 4259US10059889B2Oxidation processMERICHEM CO·Filed 2016·Granted Aug 28, 2018·0 cites·8 claims
- 4356US11547967B1Hydrogen sulfide removal processMERICHEM CO·Filed 2021·Granted Jan 10, 2023·0 cites·13 claims
- 4456US11339334B2Multi-stage contacting process and apparatusMERICHEM CO·Filed 2020·Granted May 24, 2022·0 cites·23 claims
- 4556US8652435B2High pressure reduction-oxidation desulfurization processMERICHEM CO·Filed 2013·Granted Feb 18, 2014·0 cites·6 claims
- 4655US2023416088A1Catalyst for carbonyl sulfide removal from hydrocarbonsMERICHEM CO·Filed 2022·Application pending·0 cites
- 4753US5846072AIndirect-fired, all ceramic pyrochemical reactorMERICHEM CO·Filed 1996·Granted Dec 8, 1998·12 cites·19 claims
- 4852US5171895ARemoval of guaiacol from cresylic acid feedstreamsMERICHEM CO·Filed 1992·Granted Dec 15, 1992·6 cites·7 claims
- 4950US10787614B2Hydrogen sulfide removal processMERICHEM CO·Filed 2018·Granted Sep 29, 2020·0 cites·20 claims
- 5046US4746494ATreatment of sour hydrocarbon distillateMERICHEM CO·Filed 1986·Granted May 24, 1988·11 cites·18 claims
Showing the top 50 of 59 patent records by PatentIndex Score.
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