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Inventor

John W. Weston

Inventor
Sugar Land, TX, US

Overview

9→
Patents
1989–2020
Patent span
Chemistry
Primary field (CPC C)

Patents· 9 as inventor

Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.

C08Gprimary
C08GMacromolecular compounds obtained otherwise than by reactions only involving unsaturated carbon-to-carbon bonds60%
B01JChemical or physical processes, e.g. catalysis or colloid chemistry13%
B01DSeparation7%
C08FMacromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds7%
C08JWorking-up7%
Y02PClimate change mitigation technologies in the production or processing of goods7%
PatentTitleYear
10,767,009Process for preparing polyether polyol using DMC catalyst and continuous addition of starter20209,708,448'Method for making poly(butylene oxide) polyols'20179,637,593'Single column stripping and drying process'20179,074,044'Method for continuously producing low equivalent weight polyols using double metal cyanide catalysts'20158,912,364'Continuous loop flow process for polyether polyol production'20147,378,559'Continuous process and system of producing polyether polyols'20086,642,423'Polymerization of ethylene oxide using metal cyanide catalysts'20035,037,941'Interfacial preparation of polycarbonate prepolymer with motionless mixer'19914,847,352'Polycarbonate production with motionless mixer'1989

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1989–1991Patents assigned to DOW CHEMICAL CO (2)· patent assignee history
1989–1991Based in Lake Jackson, TX, US· patent location history
2003–2008Patents assigned to DOW GLOBAL TECHNOLOGIES INC (2)· patent assignee history
2003–2015Based in Sugar Land, TX, US· patent location history
2014–2017Patents assigned to DOW GLOBAL TECHNOLOGIES LLC (4)· patent assignee history
2014–2017Patents assigned to VILLA CARLOS M (3)· patent assignee history
2014–2017Patents assigned to WESTON JOHN W (3)· patent assignee history
2017Based in Sugarland, TX, US· patent location history
2020Based in Freeport, TX, US· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
DOW GLOBAL TECHNOLOGIES LLC42014–2017
VILLA CARLOS M32014–2017
WESTON JOHN Wself32014–2017
DOW CHEMICAL CO21989–1991
DOW GLOBAL TECHNOLOGIES INC22003–2008
Locations
LocationPatentsSpan
Sugar Land, Texas, US42003–2015
Sugarland, Texas, US22017
Lake Jackson, Texas, US21989–1991
Freeport, Texas, US12020