Inventor

Robert Hume Duncan

Inventor

Cleveland, GB

Overview

7→

Patents

1983–2014

Patent span

Chemistry

Primary field (CPC C)

Patents· 7 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 lacquers29%

H04MTelephonic communication14%

B41JTypewriters7%

B41MPrinting, duplicating, marking, or copying processes7%

C07FAcyclic, carbocyclic or heterocyclic compounds containing elements other than carbon, hydrogen, halogen, oxygen, nitrogen, sulfur, selenium or tellurium7%

C08GMacromolecular compounds obtained otherwise than by reactions only involving unsaturated carbon-to-carbon bonds7%

C08KUse of inorganic or non-macromolecular organic substances as compounding ingredients7%

C08LCompositions of macromolecular compounds7%

C09KMaterials for miscellaneous applications, not provided for elsewhere7%

Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests7%

PatentTitleYear

8,722,811'Adhesion promoting compound'2014 7,879,771'Non-flammable, non-aqueous group IVB metal alkoxide crosslinkers and fracturing fluid compositions incorporating same'2011 7,619,021'Adhesion promoting compound'2009 5,821,276'Printing inks containing zirconium or titanium compound'1998 5,646,200'Compositions containing zirconium compounds'1997 4,496,799'Handsfree telephone instrument using digital dial'1985 4,406,926'Telephone station circuit using digital tone generation'1983

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1983–1985Patents assigned to ITT (2)· patent assignee history

1983–1985Based in Memphis, TN, US· patent location history

1997–1998Patents assigned to TIOXIDE SPECIALTIES LTD (2)· patent assignee history

1997–1998Based in Stockton-on-Tees, GB· patent location history

2009–2014Based in Cleveland, GB· patent location history

2011Patents assigned to BENCHMARK PERFORMANCE GROUP INC (1)· patent assignee history

2014Patents assigned to DORF KETAL CHEMICALS INDIA PVT LTD (1)· patent assignee history

2014Patents assigned to DUNCAN ROBERT HUME (1)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
ITT	2	1983–1985
TIOXIDE SPECIALTIES LTD	2	1997–1998
BENCHMARK PERFORMANCE GROUP INC	1	2011
DORF KETAL CHEMICALS INDIA PVT LTD	1	2014
DUNCAN ROBERT HUMEself	1	2014

Locations

Location	Patents	Span
Cleveland, GB	3	2009–2014
Stockton-on-Tees, GB	2	1997–1998
Memphis, TN, US	2	1983–1985