Inventor · disambiguated record
John Yaw Ofori
Also filed as: OFORI JOHN YAW
31 granted patents·6 pending applications·166 citations·filing 1997–2004
96Inventor score
Top patents by PatentIndex Score
37 records- 0188US6197991B1Method and catalyst system for producingGEN ELECTRIC·Filed 1999·Granted Mar 6, 2001·28 cites·31 claims
- 0284US6245929B1Catalyst composition and method for producing diaryl carbonates, using bisphosphinesGEN ELECTRIC·Filed 1999·Granted Jun 12, 2001·24 cites·27 claims
- 0380US6380417B1Catalysts system for producing aromatic carbonatesGEN ELECTRIC·Filed 2000·Granted Apr 30, 2002·8 cites·8 claims
- 0476US6815565B2Method for preparing hydroquinones and dihydroxybiphenyl compounds from mixtures of bromophenols and benzoquinonesGEN ELECTRIC·Filed 2003·Granted Nov 9, 2004·8 cites·22 claims
- 0576US6410774B1Method for recovery of catalyst componentsGEN ELECTRIC·Filed 2001·Granted Jun 25, 2002·5 cites·44 claims
- 0675US6310232B1Method for recycle of bromide-containing catalyst constituentsGEN ELECTRIC·Filed 2000·Granted Oct 30, 2001·7 cites·21 claims
- 0773US6215015B1Catalyst composition and method for producing diaryl carbonates, using bisphosphinesGEN ELECTRIC·Filed 2000·Granted Apr 10, 2001·5 cites·19 claims
- 0869US6683015B2Method for reactivating a catalyst compositionGEN ELECTRIC·Filed 2001·Granted Jan 27, 2004·6 cites·115 claims
- 0969US6384262B1Process for the production of diaryl carbonatesGEN ELECTRIC·Filed 2001·Granted May 7, 2002·5 cites·45 claims
- 1069US5981788AMethod for recovering and recycling catalyst constituentsGEN ELECTRIC·Filed 1997·Granted Nov 9, 1999·29 cites·39 claims
- 1168US6420587B2Catalyst system for producing aromatic carbonatesGEN ELECTRIC·Filed 2001·Granted Jul 16, 2002·3 cites·37 claims
- 1267US6441215B1Method for reducing carbonate decomposition in reaction mixturesGEN ELECTRIC·Filed 2001·Granted Aug 27, 2002·4 cites·27 claims
- 1365US6420589B1Process for the production of diaryl carbonatesGEN ELECTRIC·Filed 2001·Granted Jul 16, 2002·3 cites·68 claims
- 1465US6143914AMethod and catalyst system for producing aromatic carbonatesGEN ELECTRIC·Filed 1999·Granted Nov 7, 2000·7 cites·30 claims
- 1562US6191060B1Reclamation of metal catalysts used in the production of diaryl carbonatesGEN ELECTRIC·Filed 1998·Granted Feb 20, 2001·7 cites·12 claims
- 1661US6472551B2Process for the production of diaryl carbonatesGEN ELECTRIC·Filed 2002·Granted Oct 29, 2002·2 cites·17 claims
- 1758US6521777B2Process for the production of diaryl carbonatesGEN ELECTRIC·Filed 2001·Granted Feb 18, 2003·2 cites·105 claims
- 1856US7053251B2Bromination of hydroxyaromatic compoundsGEN ELECTRIC·Filed 2003·Granted May 30, 2006·1 cites·24 claims
- 1955US6090737ARemoval of lead from organic diaryl carbonate reaction mixturesGEN ELECTRIC·Filed 1998·Granted Jul 18, 2000·5 cites·18 claims
- 2054US6982356B2Method for preparation of para-brominated hydroxyaromatic compoundsGEN ELECTRIC·Filed 2003·Granted Jan 3, 2006·1 cites·27 claims
- 2150US2005033079A1Method and apparatus for preparing a dialkyl carbonate, and its use in the preparation of diaryl carbonates and polycarbonatesPOLIMERI EUROPA SPA·Filed 2003·Application pending·0 cites
- 2250US2005019226A1Apparatus for preparing a dialkyl carbonateFiled 2004·Application pending·0 cites
- 2350US2005033078A1Method and apparatus for preparing a dialkyl carbonate, and its use in the preparation of diaryl carbonates and polycarbonatesPOLIMERI EUROPA SPA·Filed 2003·Application pending·0 cites
- 2448US7002046B2Process for the recovery of dihydroxybiaryl compoundsGEN ELECTRIC·Filed 2003·Granted Feb 21, 2006·0 cites·24 claims
- 2548US6160154AMethod and catalyst system for producing aromatic carbonatesGEN ELECTRIC·Filed 1999·Granted Dec 12, 2000·3 cites·19 claims
- 2647US7351848B2Method and apparatus for preparing a dialkyl carbonate, and its use in the preparation of diaryl carbonates and polycarbonatesGEN ELECTRIC·Filed 2002·Granted Apr 1, 2008·0 cites·15 claims
- 2746US7345187B2Method and apparatus for preparing a dialkyl carbonate, and its use in the preparation of diaryl carbonates and polycarbonatesGEN ELECTRIC·Filed 2001·Granted Mar 18, 2008·0 cites·23 claims
- 2846US6617279B2Catalyst composition and method for producing diaryl carbonates, using bisphosphinesGEN ELECTRIC·Filed 2001·Granted Sep 9, 2003·0 cites·13 claims
- 2945US7045666B2Bromination of hydroxyaromatic compounds and further conversion to dihydroxyaromatic compoundsGEN ELECTRIC·Filed 2003·Granted May 16, 2006·0 cites·19 claims
- 3044US6407027B2Catalyst composition and method for producing diaryl carbonates, using bisphosphinesGEN ELECTRIC·Filed 2001·Granted Jun 18, 2002·0 cites·28 claims
- 3144US6143937ARecovery of hydroxyaromatic compound from aqueous extract solutionsGEN ELECTRIC·Filed 1998·Granted Nov 7, 2000·2 cites·11 claims
- 3242US6506924B2Method for recovery of catalyst componentsGEN ELECTRIC·Filed 2001·Granted Jan 14, 2003·0 cites·36 claims
- 3340US2002147363A1Method and apparatus for rapid screening of multiphase reactant systemsGEN ELECTRIC·Filed 2002·Application pending·0 cites
- 3437US6800779B2Method for producing aromatic carbonatesGEN ELECTRIC·Filed 2001·Granted Oct 5, 2004·0 cites·3 claims
- 3536US6310229B1Lead halophenoxides and carbonylation catalyst and method for preparing and employing themGEN ELECTRIC·Filed 1999·Granted Oct 30, 2001·1 cites·39 claims
- 3634US2002077495A1Process for the production of diaryl carbonatesFiled 2000·Application pending·0 cites
- 3732US2003032547A1Method for reactivating a deactivated catalyst compositionFiled 2001·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →