Inventor

John S. McCormack

Inventor

Middlesex, GB

Overview

3→

Patents

1983–1989

Patent span

Chemistry

Primary field (CPC C)

Patents· 3 as inventor

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

C03Bprimary

C03BManufacture, shaping, or supplementary processes25%

C03CChemical composition of glasses, glazes or vitreous enamels25%

G02BOptical elements, systems or apparatus25%

G02FOptical devices or arrangements for the control of light by modification of the optical properties of the media of the elements involved therein25%

PatentTitleYear

4,828,362'Optical switch'1989 4,619,680'Manufacture of integrated optical waveguides'1986 4,417,911'Manufacture of optical fibre preforms'1983

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1983Patents assigned to ASS ELECT IND (1)· patent assignee history

1983Based in Wembley, GB· patent location history

1986–1989Patents assigned to GEN ELECTRIC CO PLC (2)· patent assignee history

1986–1989Based in Middlesex, GB· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
GEN ELECTRIC CO PLC	2	1986–1989
ASS ELECT IND	1	1983

Locations

Location	Patents	Span
Middlesex, GB	2	1986–1989
Wembley, GB	1	1983