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Inventor

Timothy D. Shaffer

Inventor
Hackettstown, NJ, US

Overview

56→
Patents
1991–2021
Patent span
Chemistry
Primary field (CPC C)

Patents· 56 as inventor

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

C08Fprimary
C08FMacromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds46%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests11%
B01JChemical or physical processes, e.g. catalysis or colloid chemistry7%
C08GMacromolecular compounds obtained otherwise than by reactions only involving unsaturated carbon-to-carbon bonds7%
C07CAcyclic or carbocyclic compounds5%
Y02PClimate change mitigation technologies in the production or processing of goods4%
C07FAcyclic, carbocyclic or heterocyclic compounds containing elements other than carbon, hydrogen, halogen, oxygen, nitrogen, sulfur, selenium or tellurium3%
C08LCompositions of macromolecular compounds3%
C10GCracking hydrocarbon oils3%
B01DSeparation2%
PatentTitleYear
11,059,941Methods for preparing materials from polyaromatic heavy feedstocks202110,947,375System and process for the production of functionalized olefinic-based polymer202110,781,295Mooney viscosity stable brominated elastomers202010,138,197Direct catalytic partial oxidation of allyl ether20189,079,990'Methods of production of alkylstyrene/isoolefin polymers'20158,765,824'Ethanol stable polyether epoxy based membrane for ethanol and aromatics separation'20148,513,367'Mitigation of elastomer reactor fouling using mechanical vibration'20138,178,465'Polydispersity-controlled isoolefin polymerization with polymorphogenates'20128,148,450'Process to produce a hydrocarbon rubber cement utilizing a hydrofluorocarbon diluent'20128,119,006'Ethanol stable epoxy amine based membrane for aromatics separation'20128,076,524'Process for generating alpha olefin comonomers'20117,981,991'Separation of polymer slurries'20117,982,085'In-line process for generating comonomer'20117,893,176'Polydispersity-controlled isoolefin polymerization with polymorphogenates'20117,781,547'Reactor systems for use in polymerization processes'20107,723,447'Polymerization processes'20107,687,672'In-line process for generating comonomer'20107,582,715'Polymers substantially free of long chain branching'20097,557,170'Method for reducing depositions in polymerization vessels'20097,491,773'Halogenated polymers with new sequence distributions'20097,425,601'Polymers with new sequence distributions'20087,423,100'Polymerization processes'20087,414,101'Polymerization processes'20087,402,636'Method and apparatus for decreasing polymer deposition'20087,332,555'Polymers with new sequence distributions'20087,332,554'Polymers with new sequence distributions'20087,232,872'Polymerization processes'20077,214,750'Polymerization processes'20077,037,989'Copolymers of ethylene and/or α-olefins and vicinally disubstituted olefins'20066,984,722'Cationic group 3 catalyst system'20066,777,584'Selective coupling of terminal olefins with ethylene to manufacture linear -olefins'20046,699,938'Cationic catalysts and process for using said catalysts'20046,677,441'Cationic group 3 catalyst system'20046,492,473'Mixed transition metal catalyst systems for olefin polymerization'20026,403,773'Cationic group 3 catalyst system'20026,291,389'Cationic polymerization catalysts'20016,274,689'Random isomonoolefin/allyl styrene copolymers and functionalized derivatives thereof'20016,265,486'Triblock copolymers incorporating a styrene/isoolefin copolymer midblock'20016,194,341'Mixed transition metal catalyst systems for olefin polymerization'20016,100,354'Olefin copolymers from bridged bis(arylamido) Group 4 catalyst compounds'20006,074,978'Carbocationic catalysts and process for using said catalysts'20006,008,307'Process for producing olefin polymers using cationic catalysts'19995,866,665'Copolymers of ethylene and germinally disubstituted olefins'19995,763,556'Copolymers of ethylene and geminally disubstituted olefins'19985,703,183'Carbocationic catalysts and process for using said catalysts'19975,580,935'Functionalized polymer and method to obtain functionalized polymer'19965,523,359'Functionalized polymer and methods to obtain functionalized polymer'19965,506,316'Carbocationic catalysts and process for using said catalysts'19965,418,303'Carbocationic catalysts and process for using said catalysts'19955,403,803'Carbocationic catalyst and process for its use'19955,350,819'Carbocationic catalysts and process for using said catalysts'19945,350,726'Carbocationic catalysts and process for using said catalysts'19945,250,486'Polyphenylene ether process and resin composition'19935,084,551'Polyphenylene ether process and resin composition'19925,068,310'Polyphenylene ether process, catalyst and resin composition'19915,037,943'Polyphenylene ether process and resin composition'1991

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1991–1993Patents assigned to GEN ELECTRIC (4)· patent assignee history
1991–1993Based in Voorheesville, NY, US· patent location history
1994–2001Patents assigned to EXXON CHEMICAL PATENTS INC (15)· patent assignee history
1994–2004Based in Dickinson, TX, US· patent location history
1998–2006Based in Houston, TX, US· patent location history
2001–2015Patents assigned to EXXONMOBIL CHEM PATENTS INC (27)· patent assignee history
2004–2021Patents assigned to EXXONMOBIL RES & ENG CO (6)· patent assignee history
2004–2020Based in Hackettstown, NJ, US· patent location history
2012–2015Patents assigned to SHAFFER TIMOTHY D (6)· patent assignee history
2018–2021Based in Plainfield, NJ, US· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
EXXONMOBIL CHEM PATENTS INC272001–2015
EXXON CHEMICAL PATENTS INC151994–2001
EXXONMOBIL RES & ENG CO62004–2021
SHAFFER TIMOTHY Dself62012–2015
GEN ELECTRIC41991–1993
Locations
LocationPatentsSpan
Hackettstown, New Jersey, US272004–2020
Dickinson, Texas, US121994–2004
Houston, Texas, US101998–2006
Plainfield, New Jersey, US32018–2021
Voorheesville, New York, US31991–1993