Inventor · disambiguated record
Jon J. Harper
Also filed as: HARPER JON · HARPER JON J
13 granted patents·194 citations·filing 1975–2021
91Inventor score
Top patents by PatentIndex Score
13 records- 0195US11965859B1System and method for empirical estimation of life remaining in industrial equipmentDISCOVERY SOUND TECH LLC·Filed 2021·Granted Apr 23, 2024·4 cites·8 claims
- 0292US5183933AProcess for preparing 2,6-naphthalene-dicarboxylic acidAMOCO CORP·Filed 1991·Granted Feb 2, 1993·58 cites·21 claims
- 0392US4298580ASeparation of cobalt and manganese from trimellitic acid process residue by precipitating as carbonates, redissolving as halides and removing cobalt by magnetic meansSTANDARD OIL CO INDIANA·Filed 1980·Granted Nov 3, 1981·45 cites·11 claims
- 0490US4032563AProcess for the recovery of high purity diesters of terephthalic or isophthalic acidsSTANDARD OIL CO·Filed 1975·Granted Jun 28, 1977·40 cites·23 claims
- 0572US4298759ASeparation of cobalt and manganese from trimellitic acid process residue by extraction, ion exchanger and magnetSTANDARD OIL CO INDIANA·Filed 1980·Granted Nov 3, 1981·11 cites·4 claims
- 0651US4338464ARemoval of bromobutanone from acetic acidSTANDARD OIL CO INDIANA·Filed 1979·Granted Jul 6, 1982·3 cites·6 claims
- 0745US4827026AMethod for producing 5-t-butylisophthalic acidAMOCO CORP·Filed 1987·Granted May 2, 1989·10 cites·7 claims
- 0840US4311521AMembrane separation of catalyst metals from trimellitic acid production and separation of cobalt from manganeseSTANDARD OIL CO INDIANA·Filed 1980·Granted Jan 19, 1982·8 cites·6 claims
- 0939US4309390ASeparation of cobalt and manganese from trimellitic acid process residue by extraction, pH adjustment, and magnetSTANDARD OIL CO INDIANA·Filed 1980·Granted Jan 5, 1982·4 cites·3 claims
- 1038US4278503ALow bromine content glacial acetic acidSTANDARD OIL CO INDIANA·Filed 1979·Granted Jul 14, 1981·4 cites·3 claims
- 1137US4308240ARecovery of cobalt and manganese from ash of residue from manufacture of trimellitic acid by acid extractionSTANDARD OIL CO INDIANA·Filed 1980·Granted Dec 29, 1981·3 cites·7 claims
- 1233US4312778AMembrane separation of catalyst metals from aromatic acid productionSTANDARD OIL CO INDIANA·Filed 1980·Granted Jan 26, 1982·4 cites·7 claims
- 1332US4312714ADecreasing 3-bromo-2-butanone content of acetic acidSTANDARD OIL CO INDIANA·Filed 1979·Granted Jan 26, 1982·0 cites·2 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →