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Inventor

Dennis A. Simpson

Inventor
Wexford, PA, US

Overview

41→
Patents
1987–2019
Patent span
Chemistry
Primary field (CPC C)

Patents· 41 as inventor

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

C09Dprimary
C09DCoating compositions, e.g. paints, varnishes or lacquers23%
Y10TTechnical subjects covered by former us classification13%
C08KUse of inorganic or non-macromolecular organic substances as compounding ingredients11%
C08JWorking-up9%
C08GMacromolecular compounds obtained otherwise than by reactions only involving unsaturated carbon-to-carbon bonds9%
B05DProcesses for applying fluent materials to surfaces, in general7%
C08FMacromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds7%
C08LCompositions of macromolecular compounds7%
B82YSpecific uses or applications of nanostructures6%
B82BNanostructures formed by manipulation of individual atoms, molecules, or limited collections of atoms or molecules as discrete units4%
PatentTitleYear
10,273,381Branched polyester polymers and coatings comprising the same20199,708,504'Branched polyester polymers and coatings comprising the same'20179,434,828'Non-aqueous dispersions comprising a nonlinear acrylic stabilizer'20169,346,959'Non-aqueous dispersions comprising a nonlinear acrylic stabilizer'20169,120,916'Acrylic polymers, curable film-forming compositions prepared therefrom, and method of mitigating dirt build-up on a substrate'20158,563,648'Coating composition comprising an alkoxysilane, a polysiloxane, and a plurality of particles'20138,152,982'Coating line and process for forming a multilayer component coating on a substrate'20128,071,679'Coating compositions comprising a polymer containing an oligomeric macromonomer'20117,959,981'Process for depositing multiple coatings layers on a substrate'20117,872,078'Curable film-forming compositions demonstrating self-healing properties'20117,531,074'Coating line and process for forming a multilayer composite coating on a substrate'20097,329,468'Multi-layer composites formed from compositions having improved adhesion, coating compositions, and methods related thereto'20087,151,122'UV curable polysiloxane clearcoat'20067,053,149'Coating compositions having improved scratch resistance, coated substrates and methods related thereto'20067,005,472'Coating compositions having improved scratch resistance, coated substrates and methods related thereto'20066,987,144'Flexible coating compositions having improved scratch resistance, coated substrates and methods related thereto'20066,803,408'Coating compositions having improved scratch resistance, coated substrates and methods related thereto'20046,790,904'Liquid coating of film-forming resin and particles chemically modified to lower surface tension'20046,759,478'Coating compositions having improved scratch resistance, coated substrates and methods related thereto'20046,657,001'Coating compositions having improved scratch resistance, coated substrates and methods related thereto'20036,610,777'Flexible coating compositions having improved scratch resistance, coated substrates and methods related thereto'20036,592,999'Multi-layer composites formed from compositions having improved adhesion, coating compositions, and methods related thereto'20036,592,998'Multi-layer composites formed from compositions having improved adhesion, coating compositions, and methods related thereto'20036,593,417'Coating compositions having improved scratch resistance, coated substrates and methods related thereto'20036,541,119'Film-forming compositions having improved scratch resistance'20036,534,188'Film-forming compositions having improved scratch resistance'20036,517,905'Thermosetting compositions containing hydroxyl-functional polymers prepared using atom transfer radical polymerization'20036,485,788'Thermosetting compositions containing epoxy-functional polymers prepared using atom transfer radical'20026,387,519'Cured coatings having improved scratch resistance, coated substrates and methods thereto'20026,319,987'Thermosetting compositions containing hydroxyl-functional polymers prepared using atom transfer radical polymerization'20016,319,967'Thermosetting compositions containing epoxy-functional polymers prepared using atom transfer radical polymerization'20016,306,965'Thermosetting compositions containing carbamate-functional polylmers prepared using atom transfer radical polymerization'20016,225,434'Film-forming compositions having improved scratch resistance'20015,256,452'One package stable etch resistant coating process'19935,196,485'One package stable etch resistant coating'19934,917,955'Color plus clear composite coating having a catalyst-free base coat comprising polyepoxides and polyacid curing agents'19904,849,283'Composite coatings employing polyepoxides and polyacid curing agents in base coats'19894,737,403'Method of coating fiber-reinforced plastic substrates'19884,703,101'Liquid crosslinkable compositions using polyepoxides and polyacids'19874,681,811'Color plus clear coatings employing polyepoxides and polyacid curing agents in the clear coat'19874,650,718'Color plus clear coatings employing polyepoxides and polyacid curing agents'1987

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1987–1993Patents assigned to PPG INDUSTRIES INC (8)· patent assignee history
1987–1990Based in Koppel, PA, US· patent location history
1993–2008Based in Wexford, PA, US· patent location history
2001–2019Patents assigned to PPG IND OHIO INC (31)· patent assignee history
2001–2006Based in Pittsburgh, PA, US· patent location history
2006Based in Saver, PA, US· patent location history
2009–2019Based in Sarver, PA, US· patent location history
2011–2017Patents assigned to SIMPSON DENNIS A (6)· patent assignee history
2016–2017Patents assigned to CHASSER ANTHONY M (2)· patent assignee history
2016–2017Patents assigned to DUDIK JOHN M (2)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
PPG IND OHIO INC312001–2019
PPG INDUSTRIES INC81987–1993
SIMPSON DENNIS Aself62011–2017
CHASSER ANTHONY M22016–2017
DUDIK JOHN M22016–2017
Locations
LocationPatentsSpan
Wexford, Pennsylvania, US131993–2008
Sarver, Pennsylvania, US112009–2019
Pittsburgh, Pennsylvania, US102001–2006
Koppel, Pennsylvania, US61987–1990
Saver, Pennsylvania, US12006