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Inventor

Derek A. Hill

Inventor
Dartford, GB

Overview

5→
Patents
1986–2001
Patent span
Chemistry
Primary field (CPC C)

Patents· 5 as inventor

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

C07Dprimary
C07DHeterocyclic compounds43%
G01NInvestigating or analysing materials by determining their chemical or physical properties29%
H05BElectric heating14%
Y10TTechnical subjects covered by former us classification14%
PatentTitleYear
6,333,198'Compound and its use'20015,556,978'Neuromuscular blocking agents'19965,453,510'Neuromuscular blocking agents'19954,852,412'Sampling the contents of pressurised vessels'19894,610,015'Electrode assembly for arc furnaces'1986

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1986Patents assigned to ARC TECH SYST LTD (1)· patent assignee history
1986Based in Hatfield, GB· patent location history
1989Patents assigned to BAKER PERKINS PLC (1)· patent assignee history
1989Based in Basingstoke, GB· patent location history
1995Patents assigned to BURROUGHS WELLCOME CO (1)· patent assignee history
1995–1996Based in Dartford, GB· patent location history
1996–2001Patents assigned to GLAXO WELLCOME INC (2)· patent assignee history
2001Based in Sittingbourne, GB· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
GLAXO WELLCOME INC21996–2001
ARC TECH SYST LTD11986
BAKER PERKINS PLC11989
BURROUGHS WELLCOME CO11995
Locations
LocationPatentsSpan
Dartford, GB21995–1996
Sittingbourne, GB12001
Basingstoke, GB11989
Hatfield, GB11986