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Inventor

Henri Kraess

Inventor
Strasbourg, FR

Overview

4→
Patents
1980
Patent span
Electricity
Primary field (CPC H)

Patents· 4 as inventor

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

H04Mprimary
H04MTelephonic communication33%
G05FSystems for regulating electric or magnetic variables17%
H01HElectric switches17%
H03GControl of amplification17%
H04QSelecting17%
PatentTitleYear
4,217,503'Current limiter'19804,195,275'Multiple electromagnetic relay'19804,190,743'Thyristor switching matrix'19804,185,174'Method and apparatus for checking connection paths in a telephone exchange'1980

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1980Patents assigned to TELEPHONE IND ET COMMERCIA SA (1)· patent assignee history
1980Patents assigned to TELEPHONIE IND COMMERCIALE (1)· patent assignee history
1980Patents assigned to TELEPHONIE IND ET SA (1)· patent assignee history
1980Patents assigned to TELEPHONIE IND SA (1)· patent assignee history
1980Based in Strasbourg, FR· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
TELEPHONE IND ET COMMERCIA SA11980
TELEPHONIE IND COMMERCIALE11980
TELEPHONIE IND ET SA11980
TELEPHONIE IND SA11980
Locations
LocationPatentsSpan
Strasbourg, FR41980