Inventor

Kenneth W. Powers

Inventor

Berkeley Heights, NJ, US

Overview

33→

Patents

1976–2005

Patent span

Chemistry

Primary field (CPC C)

Patents· 33 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 bonds35%

C08LCompositions of macromolecular compounds23%

Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests13%

Y02PClimate change mitigation technologies in the production or processing of goods12%

C08GMacromolecular compounds obtained otherwise than by reactions only involving unsaturated carbon-to-carbon bonds9%

C08KUse of inorganic or non-macromolecular organic substances as compounding ingredients8%

B60CVehicle tyres1%

PatentTitleYear

6,939,933'Process for polymerizing cationically polymerizable monomers'2005 6,620,898'Production of polyisobutylene copolymers'2003 6,444,768'Production of polyisobutylene copolymers'2002 6,372,858'Solid nucleophilic reagent for conversion of benzylic halogen functionality on polymers to other functionalities'2002 6,346,571'Thermoplastic blend containing engineering resin'2002 6,303,691'Impact modification of polyamides'2001 6,156,810'Solid nucleophilic reagent for conversion of benzylic halogen functionality on polymers to other functionalities'2000 6,013,727'Thermoplastic blend containing engineering resin'2000 5,959,049'Process for selective bromination of para-alkylstyrene/isoolefin copolymers'1999 5,656,694'Interpolymer cures of blends comprising halogenated isoolefin/para-alkylstyrene elastomers and unsaturated elastomers'1997 5,654,379'Process for selective bromination of para-alkylstyrene/isoolefin copolymers'1997 5,548,029'Graft copolymers of para-alkylstyrene/isoolefin copolymers'1996 5,548,023'Graft copolymers of para-alkylstyrene/isoolefin copolymers as blend compatibilizers'1996 5,453,465'Process for preparing thermoplastic compositions'1995 5,430,118'Para-alkylstyrene/isoolefin copolymers having substantially homogeneous compositional distribution'1995 5,426,167'Para-alkylstyrene/isoolefin copolymers having substantially homogeneous compositional distribution'1995 5,369,182'Impact modification of polyamides'1994 5,286,804'Halogenation of star-branched butyl rubber with improved neutralization'1994 5,244,961'Thermoplastic compositions and process for preparing the same'1993 5,182,350'Ozone-resistant butyl elastomer'1993 5,182,333'Production of rubbery isoolefin polymers'1993 5,162,445'Para-alkylstyrene/isoolefin copolymers and functionalized copolymers thereof'1992 5,071,913'Rubbery isoolefin polymers exhibiting improved processability'1991 5,013,793'Dynamically cured thermoplastic olefin polymers and process for producing the same'1991 4,780,513'Modified Lewis acid catalyzed polymerization'1988 4,474,924'Stabilized slurries of isoolefin polymers'1984 4,358,560'Stabilized slurries of isoolefin polymers'1982 4,252,710'Stabilized slurries of isoolefin polymers'1981 4,245,060'Functional group containing cyclic diolefin butyl rubbers'1981 4,228,254'Functional group containing cyclic diolefin butyl rubbers'1980 4,074,035'Halomethylated aromatic interpolymers'1978 3,948,868'Homogeneous styrene/isoolefin copolymers'1976 3,932,371'Process for preparing low bulk viscosity polymers'1976

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1976–1988Patents assigned to EXXON RESEARCH ENGINEERING CO (9)· patent assignee history

1976–2005Based in Berkeley Heights, NJ, US· patent location history

1991–2000Patents assigned to EXXON CHEMICAL PATENTS INC (17)· patent assignee history

1997Patents assigned to EXXON CHEMICALS PATENT INC (1)· patent assignee history

2001–2002Patents assigned to EXXON MOBIL CHEM PATENTS INC (2)· patent assignee history

2002–2005Patents assigned to EXXONMOBIL CHEM PATENTS INC (4)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
EXXON CHEMICAL PATENTS INC	17	1991–2000
EXXON RESEARCH ENGINEERING CO	9	1976–1988
EXXONMOBIL CHEM PATENTS INC	4	2002–2005
EXXON MOBIL CHEM PATENTS INC	2	2001–2002
EXXON CHEMICALS PATENT INC	1	1997

Locations

Location	Patents	Span
Berkeley Heights, New Jersey, US	33	1976–2005