Inventor

Helmut Hanisch

Inventor

Nurtingen, DE

Overview

3→

Patents

1988–1992

Patent span

Electricity

Primary field (CPC H)

Patents· 3 as inventor

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

G02Fprimary

G02FOptical devices or arrangements for the control of light by modification of the optical properties of the media of the elements involved therein33%

H01CResistors17%

H05KPrinted circuits17%

H10DInorganic electric semiconductor devices17%

H10WGeneric packages, interconnections, connectors or other constructional details of devices covered by class h1017%

PatentTitleYear

5,139,341'Optical modulator'1992 5,069,517'Integrated optical waveguide'1991 4,742,325'Thin-film circuit and method of making the same'1988

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1988Patents assigned to STANDARD ELEKTRIK LORENZ AG (1)· patent assignee history

1988–1992Based in Nurtingen, DE· patent location history

1991–1992Patents assigned to ALCATEL NV (2)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
ALCATEL NV	2	1991–1992
STANDARD ELEKTRIK LORENZ AG	1	1988

Locations

Location	Patents	Span
Nurtingen, DE	3	1988–1992