Inventor
QIU WEIMING
US39 patents
⚠️ This page may combine multiple inventors who share the name “QIU WEIMING”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
DU PONT
18 patentsUS5637663AJun 10, 1997
Amorphous tetrafluoroethylene-hexafluoropropylene copolymers
DU PONT69 citations96
US6133389AOct 17, 2000
Amorphous tetrafluoroethylene-hexafluoropropylene copolymers
DU PONT62 citations95
US6486280B1Nov 26, 2002
Amorphous tetrafluoroethylene-hexafluoropropylene copolymers
DU PONT38 citations92
US6077979AJun 20, 2000
Manufacture of 3,3',5,5'-tetramethyl-2,2'-biphenol
DU PONT25 citations92
US7638650B2Dec 29, 2009
Fluoroalkyl surfactants
DU PONT8 citations84
US6376705B1Apr 23, 2002
Manufacture of 3,3,4,4-tetrahydroperfluoroalkanoates
DU PONT16 citations84
US6054615AApr 25, 2000
Fluorinated quaternary ammonium salts
DU PONT17 citations84
US7438995B2Oct 21, 2008
Use of partially fluorinated polymers in applications requiring transparency in the ultraviolet and vacuum ultraviolet
DU PONT8 citations74
US7754838B2Jul 13, 2010
Poly(meth)acrylamides and poly(meth)acrylates containing fluorinated amide
DU PONT2 citations63
US7435528B2Oct 14, 2008
Processes and devices using polycyclic fluoroalkanes in vacuum and deep ultraviolet applications
DU PONT4 citations63
US7084314B1Aug 1, 2006
Polycyclic fluoroalkanes
DU PONT4 citations63
US7078575B1Jul 18, 2006
Processes for preparing high purity polycyclic fluoroalkanes
DU PONT6 citations63
US7531689B2May 12, 2009
Fluorosulfates of hexafluoroisobutylene and its higher homologs and their derivatives
DU PONT2 citations61
US7301059B2Nov 27, 2007
Fluorosulfates of hexafluoroisobutylene and its higher homologs and their derivatives
DU PONT2 citations61
US7022457B2Apr 4, 2006
Photoresists with hydroxylated, photoacid-cleavable groups
DU PONT1 citations52
US7968669B2Jun 28, 2011
Fluoropolymer compositions and treated substrates
DU PONT0 citations51
US7493743B2Feb 24, 2009
Packages for alkanes having ultra-high transparency at 193 nm
DU PONT0 citations48
US8049040B2Nov 1, 2011
Ethylene-tetrafluoroethylene phosphate composition
DU PONT1 citations42
QIU WEIMING
7 patentsUS9028727B2May 12, 2015
Dielectric fluids comprising polyol esters
QIU WEIMING1 citations51
US8389657B2Mar 5, 2013
Poly(meth)acrylamides and poly(meth)acrylates containing flourinated amide
QIU WEIMING0 citations51
US8178638B2May 15, 2012
Poly(meth)acrylamides and poly(meth)acrylates containing fluorinated amide
QIU WEIMING0 citations51
US8058375B2Nov 15, 2011
Use of ethylene-tetrafluoroethylene carboxylic acids and salts as surfactants for aqueous emulsion polymerization of fluorinated monomer
QIU WEIMING1 citations51
US8128711B2Mar 6, 2012
Fluoropolymer compositions and treated substrates
QIU WEIMING1 citations50
US8212064B2Jul 3, 2012
Ethylene tetrafluoroethylene intermediates
QIU WEIMING0 citations46
US8318877B2Nov 27, 2012
Ethylene tetrafluoroethylene (meth)acrylate copolymers
QIU WEIMING0 citations35
NUTRITION & BIOSCIENCES USA 4 INC
5 patentsUS11584901B2Feb 21, 2023
Amphiphilic polysaccharide derivatives and compositions comprising same
NUTRITION & BIOSCIENCES USA 4 INC5 citations84
US11066626B2Jul 20, 2021
Amphiphilic polysaccharide derivatives and compositions comprising same
NUTRITION & BIOSCIENCES USA 4 INC10 citations84
US11028187B2Jun 8, 2021
Detergent compositions
NUTRITION & BIOSCIENCES USA 4 INC6 citations84
US12486338B2Dec 2, 2025
Poly alpha-1,6-glucan derivatives and compositions comprising same
NUTRITION & BIOSCIENCES USA 4 INC0 citations61
US11332547B2May 17, 2022
Crosslinked dextran and crosslinked dextran-poly alpha-1,3-glucan graft copolymers
NUTRITION & BIOSCIENCES USA 4 INC0 citations55
PROCTER & GAMBLE
4 patentsUS11905495B2Feb 20, 2024
Treatment compositions comprising cationic poly alpha-1,6-glucan ethers
PROCTER & GAMBLE5 citations81
US11732216B2Aug 22, 2023
Laundry care or dish care composition comprising a poly alpha-1,6-glucan derivative
PROCTER & GAMBLE5 citations73
US12006489B2Jun 11, 2024
Amphiphilic polysaccharide derivatives and compositions comprising same
PROCTER & GAMBLE0 citations61
US12297408B2May 13, 2025
Treatment compositions comprising cationic poly alpha-6,6-glucan ethers
PROCTER & GAMBLE0 citations58
INVISTA NORTH AMERICA SARL
2 patentsUS6984604B2Jan 10, 2006
Supported bis(phosphorus) ligands and their use in the catalysis
INVISTA NORTH AMERICA SARL62 citations95
US7071365B2Jul 4, 2006
3-alkylated-5,5′,6,6′, 7, 7′, 8, 8′—octahydro-2, 2′-binaphthols and 3, 3′-dialkylated- 5, 5′, 6, 6′, 7, 7′, 8, 8′-octahydro—2, 2′-binaphthols and processes for making
INVISTA NORTH AMERICA SARL8 citations74