Inventor
PUTZIG DONALD EDWARD
US36 patents
⚠️ This page may combine multiple inventors who share the name “PUTZIG DONALD EDWARD”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
DU PONT
28 patentsUS6255442B1Jul 3, 2001
Esterification process
DU PONT44 citations96
US6166170ADec 26, 2000
Esterification catalysts and processes therefor and therewith
DU PONT79 citations96
US6066714AMay 23, 2000
Titanium-containing catalyst composition and processes therefor and therewith
DU PONT94 citations95
US6080834AJun 27, 2000
Titanium-containing catalyst composition and processes therefor and therewith
DU PONT71 citations94
US6303738B1Oct 16, 2001
Esterification process
DU PONT54 citations93
US6774204B1Aug 10, 2004
Polyester and process therefor
DU PONT21 citations92
US6075115AJun 13, 2000
Process for the production of 5-sulfo isophthalate bis-glycolate ester metal salts and oxysulfonated polyesters made therefrom
DU PONT27 citations90
US7851417B2Dec 14, 2010
Process to prepare borozirconate solution and use as cross-linker in hydraulic fracturing fluids
DU PONT8 citations84
US7795187B2Sep 14, 2010
Permeable zone and leak plugging using cross-linking composition comprising zirconium triethanolamine complex
DU PONT8 citations84
US7795188B2Sep 14, 2010
Zirconium-base cross-linker compositions and their use in high pH oil field applications
DU PONT8 citations84
US7795190B2Sep 14, 2010
Process to prepare borozirconate solution and use as a cross-linker in hydraulic fracturing fluids
DU PONT8 citations84
US7754660B2Jul 13, 2010
Process to prepare zirconium-based cross-linker compositions and their use in oil field applications
DU PONT12 citations84
US7732383B2Jun 8, 2010
Process for stabilized zirconium triethanolamine complex and uses in oil field applications
DU PONT14 citations84
US7683011B2Mar 23, 2010
Process to prepare borozirconate solution and use as cross-linker in hydraulic fracturing fluids
DU PONT8 citations84
US6255441B1Jul 3, 2001
Titanium-containing catalyst composition and processes therefor and therewith
DU PONT16 citations82
US7795189B2Sep 14, 2010
Zirconium-hydroxy alkylated amine-hydroxy carboxylic acid cross-linking composition for use with high pH polymer solutions
DU PONT6 citations74
US7730952B2Jun 8, 2010
Hydraulic fracturing methods using cross-linking composition comprising zirconium triethanolamine complex
DU PONT7 citations74
US7122690B1Oct 17, 2006
Process to prepare metal complex of N,N-bis(2-hydroxyethyl)glycine
DU PONT7 citations74
US7790657B2Sep 7, 2010
Process to prepare borozirconate solution and use a cross-linker in hydraulic fracturing fluids
DU PONT5 citations63
US7732382B2Jun 8, 2010
Cross-linking composition and method of use
DU PONT4 citations63
US7138356B2Nov 21, 2006
Alkoxylated phosphite ester and process therefor
DU PONT5 citations63
USRE39246EAug 22, 2006
Esterification catalysts and processes therefor and therewith
DU PONT4 citations63
US7732384B2Jun 8, 2010
Solid borozirconate and borotitanate cross-linkers
DU PONT4 citations62
US7226888B2Jun 5, 2007
Composition comprising titanium and aluminium and polyester production
DU PONT1 citations52
US7026434B1Apr 11, 2006
Polyester and process therefor
DU PONT0 citations52
US6426398B2Jul 30, 2002
Poly (trimethylene terephthalate) polymer composition
DU PONT1 citations52
US7057006B2Jun 6, 2006
Stable aqueous solutions comprising titanium and zinc and process therewith
DU PONT0 citations51
US6855797B2Feb 15, 2005
Stable aqueous solutions comprising titanium and zinc and process therewith
DU PONT1 citations43
PUTZIG DONALD EDWARD
6 patentsUS8518861B2Aug 27, 2013
Solid zirconium-based cross-linking agent and use in oil field applications
PUTZIG DONALD EDWARD2 citations62
US8236739B2Aug 7, 2012
Zirconium-based cross-linker compositions and their use in high pH oil field applications
PUTZIG DONALD EDWARD2 citations62
US8153564B2Apr 10, 2012
Zirconium-based cross-linking composition for use with high pH polymer solutions
PUTZIG DONALD EDWARD3 citations62
US8252731B2Aug 28, 2012
Solid zirconium-based cross-linking agent and use in oil field applications
PUTZIG DONALD EDWARD1 citations51
US8247356B2Aug 21, 2012
Zirconium-based cross-linking composition for use with high pH polymer solutions
PUTZIG DONALD EDWARD0 citations51
US8242060B2Aug 14, 2012
Stable solutions of zirconium hydroxyalkylethylene diamine complex and use in oil field applications
PUTZIG DONALD EDWARD0 citations51