Inventor
KISHAN GURRAM
IN21 patents
⚠️ This page may combine multiple inventors who share the name “KISHAN GURRAM”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
SABIC INNOVATIVE PLASTICS IP
13 patentsUS7563817B2Jul 21, 2009
Purified 2-aryl-3,3-bis(hydroxyaryl)phthalimidines
SABIC INNOVATIVE PLASTICS IP13 citations81
US7790832B2Sep 7, 2010
Methods for purifying 2-aryl-3,3-bis(hydroxyaryl)phthalimidines
SABIC INNOVATIVE PLASTICS IP7 citations69
US7838689B2Nov 23, 2010
Method for producing phenolphthalein compound using ionic liquid catalyst composition
SABIC INNOVATIVE PLASTICS IP5 citations58
US7915430B2Mar 29, 2011
Catalytic method for producing phenolphthalein compounds
SABIC INNOVATIVE PLASTICS IP5 citations57
US7868190B2Jan 11, 2011
Method for producing phenolphthalein using a heteropolyacid catalyst
SABIC INNOVATIVE PLASTICS IP4 citations57
US7592464B2Sep 22, 2009
Methods for producing and purifying 2-hydrocarbyl-3,3-bis(4-hydroxyaryl)phthalimidine monomers and polycarbonates derived therefrom
SABIC INNOVATIVE PLASTICS IP3 citations57
US7514524B2Apr 7, 2009
Methods for producing and purifying 2-hydrocarbyl-3,3-bis(4-hydroxyaryl)phthalimidine monomers and polycarbonates derived therefrom
SABIC INNOVATIVE PLASTICS IP3 citations55
US7915332B2Mar 29, 2011
Compositions and methods for polymer composites
SABIC INNOVATIVE PLASTICS IP3 citations54
US7541417B2Jun 2, 2009
Process for the purification of dihydric phenols
SABIC INNOVATIVE PLASTICS IP5 citations54
US7696388B2Apr 13, 2010
Process for producing bisphenol-A
SABIC INNOVATIVE PLASTICS IP0 citations49
US7473752B2Jan 6, 2009
Functionalized silicone resins, methods for their preparation, and use as catalysts
SABIC INNOVATIVE PLASTICS IP0 citations49
US7528210B2May 5, 2009
Method of purification of dihydric phenols
SABIC INNOVATIVE PLASTICS IP0 citations46
US7521505B2Apr 21, 2009
Method of stabilization of dihydric phenols
SABIC INNOVATIVE PLASTICS IP1 citations46
GEN ELECTRIC
7 patentsUS7112702B2Sep 26, 2006
Process for the synthesis of bisphenol
GEN ELECTRIC14 citations79
US7041774B2May 9, 2006
Functionalized zeolite compositions and methods for their preparation and use
GEN ELECTRIC11 citations79
US7348439B2Mar 25, 2008
2-aryl-3-(aminoaryl)-3-(hydroxyaryl)phthalimidine compounds and methods for making them
GEN ELECTRIC6 citations71
US7193027B2Mar 20, 2007
Functionalized silicone resins, methods for their preparation, and use as catalysts
GEN ELECTRIC0 citations49
US7304189B2Dec 4, 2007
Methods for preparing 1,1,1-tris(4-hydroxyphenyl)alkanes
GEN ELECTRIC1 citations46
US7321069B2Jan 22, 2008
Process for preparing bisphenols
GEN ELECTRIC0 citations44
US7015365B2Mar 21, 2006
Methods for preparing cycloalkylidene bisphenols
GEN ELECTRIC0 citations34