Inventor

George R. Chapman, Jr.

Inventor

Media, PA, US

Overview

21→

Patents

1990–2008

Patent span

Chemistry

Primary field (CPC C)

Patents· 21 as inventor

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

C08Lprimary

C08LCompositions of macromolecular compounds35%

C08FMacromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds22%

C08JWorking-up15%

B29CShaping or joining of plastics7%

H10FInorganic semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation7%

C09DCoating compositions, e.g. paints, varnishes or lacquers4%

C08KUse of inorganic or non-macromolecular organic substances as compounding ingredients2%

D01DMechanical methods or apparatus in the manufacture of artificial filaments, threads, fibres, bristles or ribbons2%

H10PGeneric processes or apparatus for the manufacture or treatment of devices covered by class h102%

H10WGeneric packages, interconnections, connectors or other constructional details of devices covered by class h102%

PatentTitleYear

7,449,520'Process aid for melt processable polymers'2008 7,446,148'Process aid for melt processable polymers'2008 7,390,848'Process aid for melt processable polymers'2008 7,001,951'Process aid for melt processable polymers'2006 6,894,118'Process aid for melt processable polymers'2005 6,875,814'Process aid for melt processable polymers'2005 6,642,310'Process aid for melt processable polymers'2003 5,959,339'Simultaneous two-wavelength p-n-p-n Infrared detector'1999 5,581,084'Simultaneous two color IR detector having common middle layer metallic contact'1996 5,547,761'Low melting tetrafluoroethylene copolymer and its uses'1996 5,464,904'Low-melting tetrafluoroethylene copolymer and its uses'1995 5,457,331'Dual-band infrared radiation detector optimized for fabrication in compositionally graded HgCdTe'1995 5,266,639'Low-melting tetrafluorethylene copolymer and its uses'1993 5,132,368'Fluoropolymer process aids containing functional groups'1992 5,106,911'Process and processing aid for extruding a hydrocarbon polymer'1992 5,089,200'Process for melt extrusion of polymers'1992 5,057,575'Processing aid for polymers'1991 5,013,792'Processing aid for polymers'1991 5,010,130'High melt viscosity fluoropolymer process aid'1991 4,927,773'Method of minimizing implant-related damage to a group II-VI semiconductor material'1990 4,904,735'Processing aid for polymers'1990

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1990–1996Patents assigned to DU PONT (10)· patent assignee history

1990–1996Patents assigned to SANTA BARBARA RES CENTER (3)· patent assignee history

1990–2008Based in Media, PA, US· patent location history

1990–1999Based in Santa Barbara, CA, US· patent location history

1995Based in Goleta, CA, US· patent location history

2003–2006Patents assigned to DUPONT DOW ELASTOMERS LLC (4)· patent assignee history

2008Patents assigned to DUPONT PERFORMANCE ELASTOMERS (2)· patent assignee history

2008Patents assigned to DUPONT PERFORMANCE ELASTOMAS L (1)· patent assignee history

2008Based in Boothwyn, PA, US· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
DU PONT	10	1990–1996
DUPONT DOW ELASTOMERS LLC	4	2003–2006
SANTA BARBARA RES CENTER	3	1990–1996
DUPONT PERFORMANCE ELASTOMERS	2	2008
DUPONT PERFORMANCE ELASTOMAS L	1	2008

Locations

Location	Patents	Span
Media, Pennsylvania, US	16	1990–2008
Santa Barbara, California, US	3	1990–1999
Boothwyn, Pennsylvania, US	1	2008
Goleta, California, US	1	1995