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Inventor

Michael J. Redman

Inventor
Datchworth, GB

Overview

5→
Patents
1978–2000
Patent span
Electricity
Primary field (CPC H)

Patents· 5 as inventor

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

E21Bprimary
E21BEarth or rock drilling14%
F16KValves14%
G02FOptical devices or arrangements for the control of light by modification of the optical properties of the media of the elements involved therein14%
H04MTelephonic communication14%
H04NPictorial communication, e.g. television14%
H05KPrinted circuits14%
Y10TTechnical subjects covered by former us classification14%
PatentTitleYear
6,125,868'Method and apparatus for maintaining valves in a water distribution system'20004,691,339'Address code arrangements'19874,291,920'In situ exploitation of deep set porphyry ores'19814,175,836'Method and apparatus for forming visible images'19794,121,260'Transceiver system for visible images'1978

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1978–1979Patents assigned to XEROX CORP (2)· patent assignee history
1978–1979Based in Datchworth, GB· patent location history
1981Patents assigned to KENNECOTT CORP (1)· patent assignee history
1981Based in Belmont, MA, US· patent location history
1987Patents assigned to STC PLC (1)· patent assignee history
1987Based in Bishops Stortford, GB· patent location history
2000Patents assigned to HYDRA STOP INC (1)· patent assignee history
2000Based in Fremont, IN, US· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
XEROX CORP21978–1979
HYDRA STOP INC12000
KENNECOTT CORP11981
STC PLC11987
Locations
LocationPatentsSpan
Datchworth, GB21978–1979
Fremont, IN, US12000
Bishops Stortford, GB11987
Belmont, Massachusetts, US11981