LexDanaLexDanabeta
Inventor

Philip E. Derbyshire

Inventor
Camberley, GB

Overview

2→
Patents
1978–1980
Patent span
Chemistry
Primary field (CPC C)

Patents· 2 as inventor

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

C10Mprimary
C10MLubricating compositions40%
C07FAcyclic, carbocyclic or heterocyclic compounds containing elements other than carbon, hydrogen, halogen, oxygen, nitrogen, sulfur, selenium or tellurium20%
C07GCompounds of unknown constitution20%
C10NIndexing scheme associated with subclass c10m relating to lubricating compositions20%
PatentTitleYear
4,206,062'Overbasing chemical process'19804,092,341'Process of making an oil solution of zinc dihydrocarbyldithiophosphates'1978

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1978–1980Patents assigned to COOPER & CO LTD EDWIN (2)· patent assignee history
1978Based in Little Sandhurst, GB· patent location history
1980Based in Camberley, GB· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
COOPER & CO LTD EDWIN21978–1980
Locations
LocationPatentsSpan
Camberley, GB11980
Little Sandhurst, GB11978