Inventor
SCHRECK DAVID JAMES
US39 patents
⚠️ This page may combine multiple inventors who share the name “SCHRECK DAVID JAMES”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
UNIVATION TECH LLC
22 patentsUS6894128B2May 17, 2005
Catalyst composition, method of polymerization, and polymer therefrom
UNIVATION TECH LLC106 citations99
US6841631B2Jan 11, 2005
Catalyst composition, method of polymerization, and polymer therefrom
UNIVATION TECH LLC107 citations99
US6340730B1Jan 22, 2002
Multiple catalyst system
UNIVATION TECH LLC187 citations99
US6274684B1Aug 14, 2001
Catalyst composition, method of polymerization, and polymer therefrom
UNIVATION TECH LLC213 citations99
US7754840B2Jul 13, 2010
Bimodal high density polyethlyene
UNIVATION TECH LLC31 citations96
US6656866B2Dec 2, 2003
Catalyst preparation method
UNIVATION TECH LLC57 citations96
US6534604B2Mar 18, 2003
Catalyst composition, method of polymerization, and polymer therefrom
UNIVATION TECH LLC58 citations96
US6399722B1Jun 4, 2002
Solution feed of multiple catalysts
UNIVATION TECH LLC59 citations95
US6982236B2Jan 3, 2006
Process to polymerize olefins
UNIVATION TECH LLC17 citations93
US6586544B2Jul 1, 2003
Solution feed of multiple catalysts
UNIVATION TECH LLC23 citations92
US6346584B1Feb 12, 2002
Catalyst modifiers and their use in the polymerization of olefins(s)
UNIVATION TECH LLC25 citations92
USRE41897EOct 26, 2010
Catalyst composition, method of polymerization, and polymer therefrom
UNIVATION TECH LLC9 citations84
US6566462B2May 20, 2003
Multiple catalyst system
UNIVATION TECH LLC13 citations84
US6713573B2Mar 30, 2004
Catalyst modifiers and their use in the polymerization of olefin(s)
UNIVATION TECH LLC13 citations83
US7384884B2Jun 10, 2008
Catalyst preparation method
UNIVATION TECH LLC4 citations74
US6632769B2Oct 14, 2003
Catalyst modifier and its use in the polymerization of olefin(s)
UNIVATION TECH LLC8 citations74
US6369174B1Apr 9, 2002
Catalyst modifier and its use in the polymerization of olefin(s)
UNIVATION TECH LLC8 citations74
US6897273B2May 24, 2005
Catalyst composition, method of polymerization and polymer therefrom
UNIVATION TECH LLC10 citations72
US6897269B2May 24, 2005
Processes for transitioning between Ziegler-Natta and alumoxane-based single-site polymerization catalysts
UNIVATION TECH LLC5 citations63
US6972270B2Dec 6, 2005
Catalyst modifiers and their use in the polymerization of olefin(s)
UNIVATION TECH LLC2 citations62
US6960549B2Nov 1, 2005
Catalyst modifiers and their use in the polymerization of olefin(s)
UNIVATION TECH LLC1 citations62
US6861483B2Mar 1, 2005
Catalyst modifiers and their use in the polymerization of olefin(s)
UNIVATION TECH LLC2 citations61
IOWA CORN PROMOTION BOARD
8 patentsUS10544072B2Jan 28, 2020
Continuous processes for the highly selective conversion of aldohexose-yielding carbohydrate to ethylene glycol
IOWA CORN PROMOTION BOARD6 citations80
US9399610B2Jul 26, 2016
Process for the continuous production of ethylene glycol from carbohydrates
IOWA CORN PROMOTION BOARD6 citations79
US11319269B2May 3, 2022
Continuous processes for the selective conversion of aldohexose-yielding carbohydrate to ethylene glycol using low concentrations of retro-aldol catalyst
IOWA CORN PROMOTION BOARD3 citations70
US9783472B2Oct 10, 2017
Process for the continuous production of ethylene glycol from carbohydrates
IOWA CORN PROMOTION BOARD3 citations69
US11319268B2May 3, 2022
Continuous, carbohydrate to ethylene glycol processes
IOWA CORN PROMOTION BOARD0 citations59
US10975010B2Apr 13, 2021
Continuous processes for the highly selective conversion of aldohexose-yielding carbohydrate to ethylene glycol
IOWA CORN PROMOTION BOARD0 citations59
US10472310B2Nov 12, 2019
Continuous processes for the highly selective conversion of sugars to propylene glycol or mixtures of propylene glycol and ethylene glycol
IOWA CORN PROMOTION BOARD1 citations58
US10988426B2Apr 27, 2021
Continuous processes for the highly selective conversion of aldohexose-yielding carbohydrate to ethylene glycol
IOWA CORN PROMOTION BOARD0 citations56
T EN PROCESS TECH INC
4 patentsUS11919840B2Mar 5, 2024
Methods for operating continuous, unmodulated, multiple catalytic step processes
T EN PROCESS TECH INC0 citations59
US11655200B2May 23, 2023
Continuous processes for the selective conversion of aldohexose-yielding carbohydrate to ethylene glycol using low concentrations of retro-aldol catalyst
T EN PROCESS TECH INC0 citations59
US12077489B2Sep 3, 2024
Continuous, carbohydrate to ethylene glycol processes
T EN PROCESS TECH INC0 citations57
US11680031B2Jun 20, 2023
Continuous processes for the selective conversion of aldohexose-yielding carbohydrate to ethylene glycol using low concentrations of retro-aldol catalyst
T EN PROCESS TECH INC0 citations48
UNION CARBIDE CHEM PLASTIC
3 patentsUS5912202AJun 15, 1999
Olefin polymerization catalyst composition having increased activity
UNION CARBIDE CHEM PLASTIC38 citations91
US6166154ADec 26, 2000
Olefin polymerization catalyst composition having increased activity
UNION CARBIDE CHEM PLASTIC15 citations72
US6187970B1Feb 13, 2001
Processes for producing 1,6-hexanediols
UNION CARBIDE CHEM PLASTIC1 citations49