Inventor
Roger Barrett
Inventor
Stevenage, GB
Overview
Patents· 6 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
C07Dprimary
C07DHeterocyclic compounds23%
A01NPreservation of bodies of humans or animals or plants or parts thereof15%
C07FAcyclic, carbocyclic or heterocyclic compounds containing elements other than carbon, hydrogen, halogen, oxygen, nitrogen, sulfur, selenium or tellurium15%
G08BSignalling systems, e.g. personal calling systems15%
G01JMeasurement of intensity, velocity, spectral content, polarisation, phase or pulse characteristics of infrared, visible or ultraviolet light8%
G05BControl or regulating systems in general8%
G07CTime or attendance registers8%
H04LTransmission of digital information, e.g. telegraphic communication8%
PatentTitleYear
10,937,261Secure container for package delivery20217,427,925'Hazard detector'20085,922,644'Triazole phosphonic acid derivatives and their use as herbicides'19995,393,732'Triazole phosphoric acid derivatives and their use as herbicides'19954,835,278'Preparation of piperidinylcyclopentylheptenoic acid derivatives'19894,471,221'Infra-red flame detector'1984Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1984Patents assigned to EMI LTD (1)· patent assignee history
1984Based in Watford, GB· patent location history
1989Patents assigned to GLAXO GROUP LTD (1)· patent assignee history
1989Based in Camberley, GB· patent location history
1995–1999Patents assigned to ZENECA LTD (2)· patent assignee history
1995–1999Based in Stevenage, GB· patent location history
2008Patents assigned to APOLLO FIRE DETECTORS LTD (1)· patent assignee history
2008Based in Worthing, GB· patent location history
2021Patents assigned to SCHLAGE LOCK CO LLC (1)· patent assignee history
2021Based in Zionsville, IN, US· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| ZENECA LTD | 2 | 1995–1999 |
| APOLLO FIRE DETECTORS LTD | 1 | 2008 |
| EMI LTD | 1 | 1984 |
| GLAXO GROUP LTD | 1 | 1989 |
| SCHLAGE LOCK CO LLC | 1 | 2021 |
Locations
| Location | Patents | Span |
|---|---|---|
| Stevenage, GB | 2 | 1995–1999 |
| Zionsville, IN, US | 1 | 2021 |
| Worthing, GB | 1 | 2008 |
| Camberley, GB | 1 | 1989 |
| Watford, GB | 1 | 1984 |