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Inventor

Andrew Pearce

Inventor
North Humberside, GB

Overview

6→
Patents
1987–1993
Patent span
Chemistry
Primary field (CPC C)

Patents· 6 as inventor

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

C07Dprimary
C07DHeterocyclic compounds23%
C07CAcyclic or carbocyclic compounds15%
C10MLubricating compositions15%
C10NIndexing scheme associated with subclass c10m relating to lubricating compositions15%
C11DDetergent compositions15%
A61PSpecific therapeutic activity of chemical compounds or medicinal preparations8%
C10LFuels not otherwise provided for8%
PatentTitleYear
5,205,946'Process for the production of overbased calixarates'19935,114,601'Overbased calixarates, compositions containing them and use as lubricating oil additives'19925,090,966'Fuel composition containing an additive for reducing valve seat recession'19924,973,418'Nitrogen-containing anhydrides as bleach activators in detergent compositions'19904,966,723'Bleach activators in detergent compositions'19904,670,448'Triazole amine compounds, their pharmaceutical compositions and method of use'1987

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1987Patents assigned to GLAXO GROUP LTD (1)· patent assignee history
1987Based in Hertfordshire, GB· patent location history
1990Patents assigned to BP CHEM INT LTD (2)· patent assignee history
1990Based in Brough, GB· patent location history
1992–1993Patents assigned to BP CHEMICALS ADDITIVES (3)· patent assignee history
1992–1993Based in North Humberside, GB· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
BP CHEMICALS ADDITIVES31992–1993
BP CHEM INT LTD21990
GLAXO GROUP LTD11987
Locations
LocationPatentsSpan
North Humberside, GB31992–1993
Brough, GB21990
Hertfordshire, GB11987