LexDanaLexDanabeta
Inventor

Rowland A. G. Dunkley

Inventor
Leighton Buzzard, GB

Overview

4→
Patents
1976–1988
Patent span
Physics
Primary field (CPC G)

Patents· 4 as inventor

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

G07Cprimary
G07CTime or attendance registers43%
B41CProcesses for the manufacture or reproduction of printing surfaces14%
G06QInformation and communication technology [ict] specially adapted for administrative, commercial, financial, managerial or supervisory purposes14%
G06VImage or video recognition or understanding14%
G07FCoin-freed or like apparatus14%
PatentTitleYear
4,752,965'Sign verification'19884,680,801'Sign verification'19874,629,874'Prepayment metering system'19863,985,953'Gravure printing methods and apparatus with rotary shutter'1976

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1976Patents assigned to CROSFIELD ELECTRONICS LTD (1)· patent assignee history
1976Based in Chorley, GB· patent location history
1986–1988Patents assigned to DE LA RUE CO PLC (3)· patent assignee history
1986Based in Bedford, GB· patent location history
1987Based in Bedfordshire, GB· patent location history
1988Based in Leighton Buzzard, GB· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
DE LA RUE CO PLC31986–1988
CROSFIELD ELECTRONICS LTD11976
Locations
LocationPatentsSpan
Leighton Buzzard, GB11988
Bedfordshire, GB11987
Bedford, GB11986
Chorley, GB11976