Inventor
GUPTA PRAMOD
DE48 patents
⚠️ This page may combine multiple inventors who share the name “GUPTA PRAMOD”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
BAYER AG
40 patentsUS7008900B1Mar 7, 2006
Double metal cyanide catalysts for producing polyether polyols
BAYER AG101 citations97
US6486361B1Nov 26, 2002
Method for preparing polyether polyols
BAYER AG55 citations95
US4973414ANov 27, 1990
Polyethers, process for their preparation and lubricants containing these polyethers
BAYER AG70 citations95
US6608231B1Aug 19, 2003
Double-metal cyanide catalysts for producing polyether polyols
BAYER AG25 citations93
US6482993B1Nov 19, 2002
Method for producing long chain polyether polyols without reprocessing
BAYER AG22 citations93
US6468939B1Oct 22, 2002
Double metal cyanide catalysts for the preparation of polyether polyols
BAYER AG20 citations93
US6391820B1May 21, 2002
Bi-metallic-cyanide catalysts used for preparing polyether polyols
BAYER AG24 citations93
US5360863ANov 1, 1994
Radiation curable compositions and their use
BAYER AG35 citations93
US3996223ADec 7, 1976
Process for the production of polyisocyanates of isocyanurate structure
BAYER AG73 citations93
US6858655B1Feb 22, 2005
High-resilient polyurethane foams produced from polyether polyols
BAYER AG29 citations92
US6624321B2Sep 23, 2003
Process for the preparation of polyether polyols
BAYER AG20 citations92
US6586566B1Jul 1, 2003
Double metal cyanide catalysts for producing polyether polyols
BAYER AG19 citations92
US6492565B2Dec 10, 2002
Process for the preparation of polyether polyols
BAYER AG20 citations92
US6444720B1Sep 3, 2002
Open-cell rigid polyurethane foams
BAYER AG20 citations92
US6323375B1Nov 27, 2001
Crystalline double metal cyanide catalysts for producing polyether polyols
BAYER AG31 citations92
US6291388B1Sep 18, 2001
Double metal cyanide catalysts for producing polyether polyols
BAYER AG41 citations92
US6204357B1Mar 20, 2001
Double metal cyanide catalysts for preparing poly-etherpolyols
BAYER AG33 citations92
US5695689ADec 9, 1997
Polyether polyols stabilized with tocopherol
BAYER AG19 citations92
US4115373ASep 19, 1978
Process for the production of polyisocyanates containing isocyanurate groups
BAYER AG44 citations90
US4482750ANov 13, 1984
Process for removing alkaline catalysts from polyether polyols
BAYER AG29 citations87
US5998327ADec 7, 1999
Zinc/metal hexacyanocobaltate complex compounds, a process for their preparation, and their use in a process for the production of polyether polyols
BAYER AG19 citations84
US6624286B2Sep 23, 2003
Double-metal cyanide catalysts containing polyester for preparing polyether polyols
BAYER AG13 citations83
US4143072AMar 6, 1979
Process for the purification of polyethers using a tubular coil evaporator
BAYER AG26 citations80
US6617419B1Sep 9, 2003
Long-chain polyether polyols with a high proportion of primary oh groups
BAYER AG11 citations74
US6528616B1Mar 4, 2003
Double metal cyanide catalysts for the production of polyther polyols
BAYER AG6 citations74
US6458918B1Oct 1, 2002
Method for producing partially crystalline polyether polyols
BAYER AG7 citations74
US6376420B1Apr 23, 2002
Double-metal cyanide catalysts for producing polyether polyols
BAYER AG9 citations74
US6093793AJul 25, 2000
Process for the production of polyether polyols
BAYER AG10 citations74
US5468783ANov 21, 1995
Modified aromatic polyisocyanates and their use for the production of rigid foamed materials
BAYER AG7 citations73
US5426126AJun 20, 1995
Liquid, light-colored polyisocyanate mixtures and a process for their production
BAYER AG10 citations73
US5424386AJun 13, 1995
Modified aromatic polyisocyanates and their use for the production of rigid foamed materials
BAYER AG8 citations73
US5028636AJul 2, 1991
Liquid polyisocyanate mixtures, a process for their preparation, and their use in the preparation of polyurethane foams
BAYER AG12 citations73
US5672768ASep 30, 1997
Low-odor, higher molecular weight polyether polyols, a process for producing them, and their use for the production of polymers, cosmetics and pharmaceutical products synthesized from polyether polyols
BAYER AG13 citations72
US5175349ADec 29, 1992
Stabilization of organic polyisocyanates
BAYER AG17 citations70
US5625045AApr 29, 1997
Process for the production of low viscosity high functionality, light colored polyethers based on sucrose
BAYER AG15 citations69
US6350920B1Feb 26, 2002
Method for preparing polyether polyols
BAYER AG5 citations63
US5006599AApr 9, 1991
Use of 3,5-di-tert-butyl-4-hydroxyphenylpropionic acid for stabilizing polyether polyols
BAYER AG2 citations62
US5652319AJul 29, 1997
Low-odor, higher molecular weight polyether polyols, a process for producing them, and their use for the production of polymers, cosmetics and pharmaceutical products synthesized from polyether polyols
BAYER AG4 citations61
US5105019AApr 14, 1992
Process for the removal of catalysts for polyether polyols
BAYER AG2 citations55
US6569981B1May 27, 2003
Crystallizing polyether polyols, a method for producing them and use of the same
BAYER AG0 citations52