Inventor
SHUM SAI P
US37 patents
⚠️ This page may combine multiple inventors who share the name “SHUM SAI P”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
CIBA GEIGY CORP
26 patentsUS5276076AJan 4, 1994
Amorphous solid modification of 2,2',2"-nitrilo[triethyl-tris-(3,3',5,5'-tetra-tert-butyl-1,1'-biphenyl-2,2'-diyl)phosphite]
CIBA GEIGY CORP17 citations82
US5654455AAug 5, 1997
Tris-phosphite ligands and their use in transitioin metal catalyzed processes
CIBA GEIGY CORP7 citations74
US5512621AApr 30, 1996
Alpha crystalline modification of 2,2',2"-nitrilo triethyl-tris-(3,3',5,5'-t'-biphenyl-2,2'-diyl) phosphite!
CIBA GEIGY CORP5 citations74
US5489636AFeb 6, 1996
Amorphous modification of 1,1',1"-nitrilo(tri-2-propyl-tris-[2,2'-ethylidene-bis(4,6-di-tert-butylphenyl] phosphite)
CIBA GEIGY CORP12 citations74
US5486641AJan 23, 1996
Solvent-free process for the preparation of the beta crystalline modification of 2,2',2"-nitrilo[triethyl-tris-(3,3',5,5',-tetra-tert-butyl-1,1'-biphenyl-2,2'-diyl) phosphite]
CIBA GEIGY CORP9 citations74
US5405893AApr 11, 1995
Gamma crystalline modification of 2.2',2"-nitrilo[triethyl-tris-(3,3',5,5'-t'-biphenyl-2,2'-diyl) phosphite]
CIBA GEIGY CORP7 citations74
US5391799AFeb 21, 1995
Process for the preparation 6-chloro-2,4,8,10-tetra-butyldibenzo[d,f][1,3,2]dioxaphoshepin
CIBA GEIGY CORP14 citations74
US5373040ADec 13, 1994
Amorphous solid modification of 2,2',2"-nitrilo[triethyl-tris-(3,3',5,5'-tetra-tert-butyl-1,1'-biphenyl-2,2'-diyl)phosphite]
CIBA GEIGY CORP11 citations74
US5344860ASep 6, 1994
Beta crystalline modification of 2,2',2"-nitrilo[triethyl-tris-(3,3',5,5'-tetra-tert-butyl-1,1'-biphenyl-2,2'-diyl) phosphite]
CIBA GEIGY CORP11 citations74
US5334739AAug 2, 1994
Process an alpha monoclinic crystalline modification of 2,2',2"-nitrilo[triethyl-tris-(3,3',5,5'-tetra-tert-butyl-1,1'-biphenyl-2,2'-diyl)phosphite]
CIBA GEIGY CORP14 citations74
US5331031AJul 19, 1994
Gamma crystalline modification of 2,2', 2"-nitrilo[triethyl-tris(3,3',5,5'-t'-biphenyl-2,2'-diyl) phosphite]
CIBA GEIGY CORP7 citations74
US5326802AJul 5, 1994
Beta crystalline modification of 2,2',2"-nitrilo[triethyl-tris-(3,3',5,5'-tetra-tert-buytl-1,1'-biphenyl-2,2'-diyl)phosphite]
CIBA GEIGY CORP6 citations74
US5292785AMar 8, 1994
Bis-phosphite stabilized compositions
CIBA GEIGY CORP8 citations74
US5185448AFeb 9, 1993
Substituted 1-oxy-4-acyloxypiperidine and 1-oxy-4-acylaminopiperidine stabilizers
CIBA GEIGY CORP18 citations74
US5132426AJul 21, 1992
Substituted 3,7,9-trioxa-1-aza-2,8-diphosphaspiro(4,5)decanes and stabilized compositions
CIBA GEIGY CORP7 citations74
US5075482ADec 24, 1991
Substituted 3,7,9-trioxa-1-aza-2,8-diphosphaspiro[4.5]decanes and stabilized compositions
CIBA GEIGY CORP7 citations74
US5624983AApr 29, 1997
Amorphous modification of 1,1',1"-nitrilo(triethyl-tris-[2,2'-methylene-bis(4,6-di-tert-butylphenyl)] phosphite)
CIBA GEIGY CORP3 citations63
US5489635AFeb 6, 1996
Crystalline modification of 1, 1', 1"- Nitril0 (tri-2-propyl-tris-[2,2'- ethylidene-bis (4, 6-di-tert-butylphenyl]phosphite)
CIBA GEIGY CORP3 citations63
US5475042ADec 12, 1995
Cyclic pyrophosphites and compositions stabilized therewith
CIBA GEIGY CORP2 citations63
US5521237AMay 28, 1996
Alkanolamine esters of acyclic phosphites in polyolefin compositions
CIBA GEIGY CORP4 citations61
US5625090AApr 29, 1997
Crystalline modification of 1,1',1"-nitrilo{triethyl-tris-[2,2'-methylene-bis(4,6-di-tert-butylphenyl)]phosphite}
CIBA GEIGY CORP1 citations52
US5534646AJul 9, 1996
Substituted 1,3,2,4-diazadiphosphetidines and compositions stabilized therewith
CIBA GEIGY CORP1 citations52
US5239103AAug 24, 1993
Process of making 3,7,9-trioxa-1-aza-2,8-diphosphaspiro[4,5]decanes
CIBA GEIGY CORP1 citations52
US5075484ADec 24, 1991
3H-1,3,2-oxazaphospholidines and stabilized compositions
CIBA GEIGY CORP1 citations51
US5187213AFeb 16, 1993
Stabilized copositions comprising 3,7,9-trioxa-1-aza-2,8-diphosphaspiro[4,5]decanes
CIBA GEIGY CORP0 citations42
US5147910ASep 15, 1992
Compositions stabilized with 3H-1,3,2-oxozaphospholidines
CIBA GEIGY CORP0 citations41
CIBA SC HOLDING AG
6 patentsUS5817850AOct 6, 1998
Ferrocene bis(phosphonite) ligands and complexes for transition-metal-catalyzed reactions
CIBA SC HOLDING AG23 citations92
US7066990B2Jun 27, 2006
Ink jet ink and recording material
CIBA SC HOLDING AG9 citations74
US7291662B2Nov 6, 2007
Nonylcyclohexylphosphite ester polyolefin stabilizers
CIBA SC HOLDING AG3 citations62
US6841668B2Jan 11, 2005
Polyoxometalate catalysts for the preparation of sterically hindered N-substituted aryloxyamines
CIBA SC HOLDING AG4 citations61
US6103938AAug 15, 2000
Process for preparing 4-(substituted phenyl)-3,4-dihydro-2H-naphthalen-1-ones
CIBA SC HOLDING AG0 citations52
US6054614AApr 25, 2000
Process for the preparation of tetralone imines for the preparation of active pharmaceutical compounds
CIBA SC HOLDING AG0 citations52