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Inventor

Francis Kretz

Inventor
Cesson-Sevigne, FR

Overview

2→
Patents
1981–1982
Patent span
Electricity
Primary field (CPC H)

Patents· 2 as inventor

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

H04Nprimary
H04NPictorial communication, e.g. television67%
H03MCoding33%
PatentTitleYear
4,363,103'Device for following and estimating the local state of picture contours'19824,292,651'Expansion and compression of television signals by use of differential coding'1981

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1981Patents assigned to BOUDEVILLE JEAN LOUIS (1)· patent assignee history
1981Patents assigned to KRETZ FRANCIS (1)· patent assignee history
1981–1982Based in Cesson-Sevigne, FR· patent location history
1982Patents assigned to FRANCE ETAT (1)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
BOUDEVILLE JEAN LOUIS11981
FRANCE ETAT11982
KRETZ FRANCISself11981
Locations
LocationPatentsSpan
Cesson-Sevigne, FR21981–1982