Assignee
NIPPON CATALYTIC CHEM IND
JP·1,316 granted patents·207 pending applications·29,167 citations·filing 1972–2025
Top patents by PatentIndex Score
1,523 records- 0199US7473739B2Particulate water absorbent agent and production method thereof, and water absorbent articleNIPPON CATALYTIC CHEM IND·Filed 2005·Granted Jan 6, 2009·91 cites·4 claims
- 0299US6809158B2Water-absorbing agent and process for producing the sameNIPPON CATALYTIC CHEM IND·Filed 2001·Granted Oct 26, 2004·187 cites·35 claims
- 0398US6906159B2Water-absorbent resin, hydropolymer, process for producing them, and uses of themNIPPON CATALYTIC CHEM IND·Filed 2001·Granted Jun 14, 2005·98 cites·2 claims
- 0498US6562879B1Water-absorbent resin powder and its production process and useNIPPON CATALYTIC CHEM IND·Filed 2000·Granted May 13, 2003·132 cites·23 claims
- 0598US6265488B1Production process for water-absorbing agentNIPPON CATALYTIC CHEM IND·Filed 1999·Granted Jul 24, 2001·178 cites·18 claims
- 0698US6241928B1Method for production of shaped hydrogel of absorbent resinNIPPON CATALYTIC CHEM IND·Filed 1999·Granted Jun 5, 2001·351 cites·24 claims
- 0798US6228930B1Water-absorbent resin granule-containing composition and production process for water-absorbent resin granuleNIPPON CATALYTIC CHEM IND·Filed 1998·Granted May 8, 2001·222 cites·14 claims
- 0898US6200680B1Fine zinc oxide particles, process for producing the same, and use thereofNIPPON CATALYTIC CHEM IND·Filed 1995·Granted Mar 13, 2001·218 cites·21 claims
- 0998US5250640AMethod for production of particulate hydrogel polymer and absorbent resinNIPPON CATALYTIC CHEM IND·Filed 1992·Granted Oct 5, 1993·185 cites·17 claims
- 1098US4854123AMethod for removal of nitrogen oxides from exhaust gas of diesel engineNIPPON CATALYTIC CHEM IND·Filed 1988·Granted Aug 8, 1989·138 cites·8 claims
- 1198US4749671AExhaust gas cleaning catalyst and process for production thereofNIPPON CATALYTIC CHEM IND·Filed 1986·Granted Jun 7, 1988·159 cites·15 claims
- 1298US4666983AAbsorbent articleNIPPON CATALYTIC CHEM IND·Filed 1983·Granted May 19, 1987·552 cites·26 claims
- 1398US4625001AMethod for continuous production of cross-linked polymerNIPPON CATALYTIC CHEM IND·Filed 1985·Granted Nov 25, 1986·311 cites·13 claims
- 1498US4286082AAbsorbent resin composition and process for producing sameNIPPON CATALYTIC CHEM IND·Filed 1980·Granted Aug 25, 1981·694 cites·18 claims
- 1597US11459431B2Method for producing polyacrylic acid (salt)-based water absorbent resinNIPPON CATALYTIC CHEM IND·Filed 2020·Granted Oct 4, 2022·4 cites·10 claims
- 1697US7473470B2Particulate water absorbing agent with irregularly pulverized shapeNIPPON CATALYTIC CHEM IND·Filed 2005·Granted Jan 6, 2009·34 cites·20 claims
- 1797US7183456B2Water-absorbent resin and production process thereforNIPPON CATALYTIC CHEM IND·Filed 2004·Granted Feb 27, 2007·78 cites·9 claims
- 1897US6727345B2Continuous production process for water-absorbent resin powder and powder surface detector used thereforNIPPON CATALYTIC CHEM IND·Filed 2002·Granted Apr 27, 2004·94 cites·11 claims
- 1997US6252110B1Methods for recovering acrylic acidNIPPON CATALYTIC CHEM IND·Filed 1998·Granted Jun 26, 2001·363 cites·10 claims
- 2097US6107358AWater-absorbent resin and method for production thereofNIPPON CATALYTIC CHEM IND·Filed 1997·Granted Aug 22, 2000·174 cites·19 claims
- 2197US5382610AWater absorbent matter and method for producing it as well as water absorbent and method for producing itNIPPON CATALYTIC CHEM IND·Filed 1993·Granted Jan 17, 1995·175 cites·29 claims
- 2297US5264495AMethod for production of salt-resistant absorbent resinNIPPON CATALYTIC CHEM IND·Filed 1991·Granted Nov 23, 1993·177 cites·20 claims
- 2397US5140076AMethod of treating the surface of an absorbent resinNIPPON CATALYTIC CHEM IND·Filed 1990·Granted Aug 18, 1992·156 cites·30 claims
- 2497US4973632AProduction process for water-absorbent resinNIPPON CATALYTIC CHEM IND·Filed 1989·Granted Nov 27, 1990·181 cites·3 claims
- 2597US4734478AWater absorbing agentNIPPON CATALYTIC CHEM IND·Filed 1985·Granted Mar 29, 1988·535 cites·39 claims
- 2697US4221768ACatalyst for purifying exhaust and waste gasesNIPPON CATALYTIC CHEM IND·Filed 1978·Granted Sep 9, 1980·129 cites·15 claims
- 2797US4203906AProcess for catalytic vapor phase oxidationNIPPON CATALYTIC CHEM IND·Filed 1978·Granted May 20, 1980·94 cites·13 claims
- 2896US10131545B2Ammonia synthesis method and catalyst for ammonia synthesisNIPPON CATALYTIC CHEM IND·Filed 2014·Granted Nov 20, 2018·23 cites·7 claims
- 2996US8383746B2Water absorbing resin with improved internal structure and manufacturing method thereforNIPPON CATALYTIC CHEM IND·Filed 2007·Granted Feb 26, 2013·34 cites·7 claims
- 3096US7612230B2Method for producing acrylic acidNIPPON CATALYTIC CHEM IND·Filed 2005·Granted Nov 3, 2009·24 cites·9 claims
- 3196US7378453B2Surface crosslinking treatment method of water-absorbing resin powderNIPPON CATALYTIC CHEM IND·Filed 2004·Granted May 27, 2008·68 cites·25 claims
- 3296US6297319B1Water-absorbing agent and production process thereforNIPPON CATALYTIC CHEM IND·Filed 1999·Granted Oct 2, 2001·100 cites·23 claims
- 3396US6254990B1Surface-crosslinking process for water-absorbent resinNIPPON CATALYTIC CHEM IND·Filed 1999·Granted Jul 3, 2001·152 cites·17 claims
- 3496US6071976AWater absorbing agent, manufacturing method thereof, and manufacturing machine thereofNIPPON CATALYTIC CHEM IND·Filed 1996·Granted Jun 6, 2000·186 cites·50 claims
- 3596US5985944AWater-absorbent resin, process for production thereof, and water-absorbent resin compositionNIPPON CATALYTIC CHEM IND·Filed 1995·Granted Nov 16, 1999·125 cites·19 claims
- 3696US5853867AAbsorbent composite, method for production thereof, and absorbent articleNIPPON CATALYTIC CHEM IND·Filed 1996·Granted Dec 29, 1998·117 cites·26 claims
- 3796US5322960AMethod for inhibiting polymerization of (meth) acrylic acid and esters thereofNIPPON CATALYTIC CHEM IND·Filed 1993·Granted Jun 21, 1994·89 cites·7 claims
- 3896US5275773AMethod for production of particulate hydrated gel polymer and absorbent resinNIPPON CATALYTIC CHEM IND·Filed 1992·Granted Jan 4, 1994·105 cites·14 claims
- 3996US5164459AMethod for treating the surface of an absorbent resinNIPPON CATALYTIC CHEM IND·Filed 1990·Granted Nov 17, 1992·132 cites·19 claims
- 4096US4537874ACatalyst for production of unsaturated aldehydesNIPPON CATALYTIC CHEM IND·Filed 1983·Granted Aug 27, 1985·95 cites·2 claims
- 4196US4368144ASilver catalyst for production of ethylene oxideNIPPON CATALYTIC CHEM IND·Filed 1980·Granted Jan 11, 1983·57 cites·8 claims
- 4295US7914927B2Material for electrolytic solutions and use thereofNIPPON CATALYTIC CHEM IND·Filed 2010·Granted Mar 29, 2011·32 cites·6 claims
- 4395US7683220B2Process for production of acroleinNIPPON CATALYTIC CHEM IND·Filed 2007·Granted Mar 23, 2010·39 cites·8 claims
- 4495US7582705B2Particulate water absorbent agent and production method thereof, and water absorbent articleNIPPON CATALYTIC CHEM IND·Filed 2008·Granted Sep 1, 2009·22 cites·3 claims
- 4595US7319168B2Process for producing aliphatic carboxylic acidNIPPON CATALYTIC CHEM IND·Filed 2004·Granted Jan 15, 2008·51 cites·8 claims
- 4695US7265190B2Process and apparatus for production of water-absorbent resinNIPPON CATALYTIC CHEM IND·Filed 2003·Granted Sep 4, 2007·58 cites·10 claims
- 4795US7193006B2Process for continuous production of water-absorbent resin productNIPPON CATALYTIC CHEM IND·Filed 2003·Granted Mar 20, 2007·56 cites·15 claims
- 4895US6767980B2Reactive diluent and curable resin compositionNIPPON CATALYTIC CHEM IND·Filed 2002·Granted Jul 27, 2004·106 cites·5 claims
- 4995US6482981B2Method for producing acrylic acidNIPPON CATALYTIC CHEM IND·Filed 2001·Granted Nov 19, 2002·41 cites·16 claims
- 5095US6444744B1Hydrophilic resin, absorbent article, and acrylic acid for polymerizationNIPPON CATALYTIC CHEM IND·Filed 1999·Granted Sep 3, 2002·114 cites·17 claims
Showing the top 50 of 1,523 patent records by PatentIndex Score.
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