Inventor · disambiguated record
Narayanan Sankara Subramanian
Also filed as: SUBRAMANIAN NARAYANAN S · SUBRAMANIAN NARAYANAN SANKARA
13 granted patents·9 pending applications·275 citations·filing 1982–2011
92Inventor score
Files withDU PONT11HOFMANN MICHAEL ANDREW3SUBRAMANIAN NARAYANAN SANKARA2BIRMINGHAM JOHN N1DIEMER RUSSELL BERTRUM1
Top patents by PatentIndex Score
22 records- 0195US7029648B2Process for making durable rutile titanium dioxide pigment by vapor phase deposition of surface treatmentDU PONT·Filed 2004·Granted Apr 18, 2006·60 cites·30 claims
- 0292US6852306B2Process for making durable rutile titanium dioxide pigment by vapor phase deposition of surface treatmentsDU PONT·Filed 2002·Granted Feb 8, 2005·34 cites·6 claims
- 0389US5922120AProcess for producing coated TiO2 pigment using cooxidation to provide hydrous oxide coatingsDU PONT·Filed 1997·Granted Jul 13, 1999·74 cites·12 claims
- 0488US7476378B2Process for producing titanium dioxideE I DUPONT DENEMOURS & COMPANY·Filed 2005·Granted Jan 13, 2009·19 cites·20 claims
- 0582US7795330B2Preparation of organic additive-treated, pyrogenic silica-encapsulated titanium dioxide particlesDU PONT·Filed 2008·Granted Sep 14, 2010·5 cites·12 claims
- 0681US5229528ARapid depolymerization of polyhydroxy acidsDU PONT·Filed 1991·Granted Jul 20, 1993·41 cites·10 claims
- 0775US7247200B2Titanium dioxide finishing processDU PONT·Filed 2005·Granted Jul 24, 2007·3 cites·13 claims
- 0869US8722761B2Plastic surfaces having improved surface characteristicsSUBRAMANIAN NARAYANAN SANKARA·Filed 2009·Granted May 13, 2014·3 cites·9 claims
- 0966US4520183AProcess for making random ethylene/alkyl acrylate copolymersDU PONT·Filed 1982·Granted May 28, 1985·15 cites·20 claims
- 1062US2008305363A1Reduced abrasion of titanium dioxide pigments produced from the chloride processHOFMANN MICHAEL ANDREW·Filed 2008·Application pending·0 cites
- 1160US2011293508A1Reduced abrasion of titanium dioxide pigments produced from the chloride processHOFMANN MICHAEL ANDREW·Filed 2011·Application pending·0 cites
- 1259US2007248822A1Reduced abrasion of titanium dioxide pigments produced from the chloride processHOFMANN MICHAEL ANDREW·Filed 2007·Application pending·0 cites
- 1358US8114377B2Process for producing titanium dioxide particles having reduced chloridesEATON ALAN ROGER·Filed 2006·Granted Feb 14, 2012·1 cites·14 claims
- 1457US2007245924A1Reduced abrasion of titanium dioxide pigments produced from the chloride processHOFMANN MICHAEL A·Filed 2006·Application pending·0 cites
- 1556US2006127303A1Process for making durable rutile titanium dioxide pigment by vapor phase deposition of surface treatmentSUBRAMANIAN NARAYANAN S·Filed 2006·Application pending·0 cites
- 1655US2008202385A1Process for making durable titanium dioxide pigment in the chloride process without wet treatmentSUBRAMANIAN NARAYANAN SANKARA·Filed 2008·Application pending·0 cites
- 1753US2010324186A1Preparation of organic additive-treated, pyrogenic silica-encapsulated titanium dioxide particlesDU PONT·Filed 2010·Application pending·0 cites
- 1851US5759511AGranular scrubs for use in manufacturing titanium dioxide pigmentDU PONT·Filed 1996·Granted Jun 2, 1998·10 cites·14 claims
- 1950US2008105165A1Titanium dioxide finishing processDIEMER RUSSELL BERTRUM·Filed 2007·Application pending·0 cites
- 2049US7799124B2Process for treating inorganic particles via sintering of sinterable materialDU PONT·Filed 2006·Granted Sep 21, 2010·0 cites·40 claims
- 2146US5264626ARapid depolymerization of polyhydroxy acidsDU PONT·Filed 1991·Granted Nov 23, 1993·10 cites·12 claims
- 2244US2005239921A1Preparation of organic additive-treated, pyrogenic silica-encapsulated titanium dioxide particlesBIRMINGHAM JOHN N·Filed 2004·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →