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Inventor

Colin Cornhill

Inventor
Cedar Rapids, IA, US

Overview

2→
Patents
1992–1999
Patent span
Physics
Primary field (CPC G)

Patents· 2 as inventor

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

G08Bprimary
G08BSignalling systems, e.g. personal calling systems25%
G08CTransmission systems for measured values, control or similar signals25%
H01HElectric switches25%
H02HEmergency protective circuit arrangements25%
PatentTitleYear
5,886,860'Circuit breakers with PTC (Positive Temperature Coefficient resistivity'19995,091,640'Phase advance for ambient light suppression in phototransistors'1992

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1992–1999Patents assigned to SQUARE D CO (2)· patent assignee history
1992Based in Corsham, GB· patent location history
1999Based in Cedar Rapids, IA, US· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
SQUARE D CO21992–1999
Locations
LocationPatentsSpan
Cedar Rapids, IA, US11999
Corsham, GB11992