Assignee
TOYO ENGINEERING CORP
145 granted patents·27 pending applications·2,303 citations·filing 1974–2024
Top patents by PatentIndex Score
172 records- 0195US12055324B2Heat pump unitTOYO ENGINEERING CORP·Filed 2021·Granted Aug 6, 2024·2 cites·5 claims
- 0294US4988580AFuel cell power generating systemTOYO ENGINEERING CORP·Filed 1989·Granted Jan 29, 1991·113 cites·6 claims
- 0393US10016699B2Distillation columnTOYO ENGINEERING CORP·Filed 2015·Granted Jul 10, 2018·8 cites·8 claims
- 0492US4466828AProcess for smelting nickelTOYO ENGINEERING CORP·Filed 1983·Granted Aug 21, 1984·50 cites·10 claims
- 0591US7517373B2ReformerTOYO ENGINEERING CORP·Filed 2005·Granted Apr 14, 2009·19 cites·19 claims
- 0691US4849187ASteam reforming apparatusTOYO ENGINEERING CORP·Filed 1988·Granted Jul 18, 1989·126 cites·20 claims
- 0790US4594227AReaction method and reactor thereforTOYO ENGINEERING CORP·Filed 1983·Granted Jun 10, 1986·66 cites·21 claims
- 0890US4460278AContinuous bulk polymerization reactorTOYO ENGINEERING CORP·Filed 1982·Granted Jul 17, 1984·67 cites·7 claims
- 0989US7763215B2Reactor having detachably fixed tubesheet plate memberTOYO ENGINEERING CORP·Filed 2005·Granted Jul 27, 2010·10 cites·17 claims
- 1089US4789132AValveTOYO ENGINEERING CORP·Filed 1987·Granted Dec 6, 1988·63 cites·4 claims
- 1189US4714593AReforming apparatusTOYO ENGINEERING CORP·Filed 1987·Granted Dec 22, 1987·59 cites·12 claims
- 1289US4321234AChemical process and apparatus thereforTOYO ENGINEERING CORP·Filed 1980·Granted Mar 23, 1982·68 cites·11 claims
- 1386US9908060B2Heat integrated distillation apparatusTOYO ENGINEERING CORP·Filed 2013·Granted Mar 6, 2018·10 cites·5 claims
- 1486US6518457B1Urea synthesis processTOYO ENGINEERING CORP·Filed 2002·Granted Feb 11, 2003·18 cites·7 claims
- 1586US6426434B1Process for the synthesis of ureaTOYO ENGINEERING CORP·Filed 2001·Granted Jul 30, 2002·22 cites·8 claims
- 1686US4354040AProcess for synthesizing ureaTOYO ENGINEERING CORP·Filed 1981·Granted Oct 12, 1982·23 cites·4 claims
- 1784US6467513B1Method for packing catalyst and device thereforTOYO ENGINEERING CORP·Filed 1999·Granted Oct 22, 2002·65 cites·7 claims
- 1884US4864059AProcess for producing ureaTOYO ENGINEERING CORP·Filed 1985·Granted Sep 5, 1989·22 cites·5 claims
- 1984US4749595AProcess for processing granulesTOYO ENGINEERING CORP·Filed 1986·Granted Jun 7, 1988·50 cites·5 claims
- 2084US4525482AProcess for producing a gas containing methaneTOYO ENGINEERING CORP·Filed 1984·Granted Jun 25, 1985·41 cites·16 claims
- 2184US4219492AProcess for manufacturing methanolTOYO ENGINEERING CORP·Filed 1979·Granted Aug 26, 1980·33 cites·3 claims
- 2283US4504679AProcess for synthesizing ureaTOYO ENGINEERING CORP·Filed 1982·Granted Mar 12, 1985·19 cites·5 claims
- 2383US3969542ACatalysts and methods of makingTOYO ENGINEERING CORP·Filed 1974·Granted Jul 13, 1976·39 cites·10 claims
- 2482US4431049ABayonet tube heat exchangerTOYO ENGINEERING CORP·Filed 1980·Granted Feb 14, 1984·40 cites·4 claims
- 2582US4353730AGranulating processTOYO ENGINEERING CORP·Filed 1980·Granted Oct 12, 1982·31 cites·19 claims
- 2681US7153693B2Method and apparatus for determining urea concentrationTOYO ENGINEERING CORP·Filed 2003·Granted Dec 26, 2006·35 cites·10 claims
- 2780US10604477B2Urea manufacturing method and urea manufacturing apparatusTOYO ENGINEERING CORP·Filed 2016·Granted Mar 31, 2020·1 cites·12 claims
- 2878US10280094B2Method and apparatus for treating urea aqueous solutionTOYO ENGINEERING CORP·Filed 2017·Granted May 7, 2019·2 cites·6 claims
- 2978US4990481ACatalyst for steam reformingTOYO ENGINEERING CORP·Filed 1989·Granted Feb 5, 1991·30 cites·11 claims
- 3078US4740290AProcess for thermal cracking of heavy oilTOYO ENGINEERING CORP·Filed 1987·Granted Apr 26, 1988·27 cites·20 claims
- 3177US9851140B2Distillation apparatusTOYO ENGINEERING CORP·Filed 2014·Granted Dec 26, 2017·4 cites·5 claims
- 3277US7344663B2Multi-nozzle for granulation and method for manufacturing granular productTOYO ENGINEERING CORP·Filed 2006·Granted Mar 18, 2008·5 cites·3 claims
- 3377US4714592ARadial flow catalytic reactor including heat exchange apparatus within the bedTOYO ENGINEERING CORP·Filed 1985·Granted Dec 22, 1987·48 cites·16 claims
- 3477US4336770AWaste heat boilerTOYO ENGINEERING CORP·Filed 1980·Granted Jun 29, 1982·37 cites·8 claims
- 3576US6367726B1Dual-bearing reel having detachable side coverTOYO ENGINEERING CORP·Filed 2000·Granted Apr 9, 2002·20 cites·1 claims
- 3676US4315900AIntegrated process for the production of methanol and ammoniaTOYO ENGINEERING CORP·Filed 1980·Granted Feb 16, 1982·32 cites·12 claims
- 3776US2024200869A1Process and apparatus for separating hydrocarbonTOYO ENGINEERING CORP·Filed 2024·Application pending·0 cites
- 3875US7498464B2Method and apparatus for synthesizing ureaTOYO ENGINEERING CORP·Filed 2006·Granted Mar 3, 2009·2 cites·17 claims
- 3975US6203730B1Method for granulation and granulatorTOYO ENGINEERING CORP·Filed 1998·Granted Mar 20, 2001·32 cites·19 claims
- 4073US6476262B2Urea synthesis process and apparatusTOYO ENGINEERING CORP·Filed 2001·Granted Nov 5, 2002·6 cites·16 claims
- 4173US5773589ASteam reforming catalysts for lower hydrocarbonsTOYO ENGINEERING CORP·Filed 1997·Granted Jun 30, 1998·31 cites·6 claims
- 4272US7582795B2Apparatus for synthesizing urea and method for revamping the sameTOYO ENGINEERING CORP·Filed 2006·Granted Sep 1, 2009·6 cites·18 claims
- 4372US7582237B2Process for preparing granular urea productTOYO ENGINEERING CORP·Filed 2006·Granted Sep 1, 2009·2 cites·4 claims
- 4472US5199961AApparatus for catalytic reactionTOYO ENGINEERING CORP·Filed 1991·Granted Apr 6, 1993·28 cites·8 claims
- 4572US4909809AApparatus for the production of gasTOYO ENGINEERING CORP·Filed 1989·Granted Mar 20, 1990·27 cites·6 claims
- 4671US6179893B1Process for generation of fertilizer granules containing urea and ammonium sulfateTOYO ENGINEERING CORP·Filed 1999·Granted Jan 30, 2001·31 cites·25 claims
- 4770US5034132AMethod for extractionTOYO ENGINEERING CORP·Filed 1989·Granted Jul 23, 1991·23 cites·12 claims
- 4870US4310253AStirring methodTOYO ENGINEERING CORP·Filed 1980·Granted Jan 12, 1982·36 cites·9 claims
- 4970US4231961AProcess for preparation of ureaTOYO ENGINEERING CORP·Filed 1979·Granted Nov 4, 1980·9 cites·1 claims
- 5069US9981864B2Oily water separator, oil-water separating method and filtration membrane unitTOYO ENGINEERING CORP·Filed 2014·Granted May 29, 2018·2 cites·21 claims
Showing the top 50 of 172 patent records by PatentIndex Score.
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