Inventor

John Whitworth

Inventor

Manchester, GB

Overview

11→

Patents

1998–2014

Patent span

Chemistry

Primary field (CPC C)

Patents· 11 as inventor

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

B41Mprimary

B41MPrinting, duplicating, marking, or copying processes24%

C07CAcyclic or carbocyclic compounds24%

C09DCoating compositions, e.g. paints, varnishes or lacquers12%

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

Y10TTechnical subjects covered by former us classification8%

B05DProcesses for applying fluent materials to surfaces, in general4%

C07DHeterocyclic compounds4%

C07FAcyclic, carbocyclic or heterocyclic compounds containing elements other than carbon, hydrogen, halogen, oxygen, nitrogen, sulfur, selenium or tellurium4%

C09BOrganic dyes or closely-related compounds for producing dyes, e.g. pigments4%

E21BEarth or rock drilling4%

PatentTitleYear

8,642,504'Aqueous and transparent coatings for marking substrates'2014 8,101,545'Coating compositions for marking substrates'2012 7,998,653'Coating compositions comprising a latent activator for marking substrates'2011 7,517,397'Heat sensitive recording material'2009 6,624,117'Heat sensitive recording material'2003 6,071,853'Crystalline fluoran compound'2000 5,936,119'Chemical process'1999 5,925,787'Production of keto acids'1999 5,917,086'Purification process'1999 5,908,961'Production of aminophenols'1999 5,794,697'Method for increasing oil production from an oil well producing a mixture of oil and gas'1998

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1998Patents assigned to ATLANTIC RICHFIELD CO (1)· patent assignee history

1998Based in Broken Arrow, OK, US· patent location history

1999–2009Patents assigned to CIBA SC HOLDING AG (7)· patent assignee history

1999–2014Based in Manchester, GB· patent location history

1999Based in Audenshaw, GB· patent location history

2012–2014Patents assigned to CAMPBELL JONATHAN (2)· patent assignee history

2012–2014Patents assigned to PLATT ALAN (2)· patent assignee history

2012–2014Patents assigned to WHITWORTH JOHN (2)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
CIBA SC HOLDING AG	7	1999–2009
CAMPBELL JONATHAN	2	2012–2014
PLATT ALAN	2	2012–2014
WHITWORTH JOHNself	2	2012–2014
ATLANTIC RICHFIELD CO	1	1998

Locations

Location	Patents	Span
Manchester, GB	7	1999–2014
Audenshaw, GB	3	1999
Broken Arrow, OK, US	1	1998