SCHLUMBERGER INDUSTRIES, 50, AVENUE JEAN JAURES 92120 MONTROUGE FRANCE A CORP. OF FRANCE
Patent Owner
Stats
- 0 US PATENTS IN FORCE
- 0 US APPLICATIONS PENDING
- Feb 26, 1991 most recent publication
Details
- 0 Issued Patents
- 0 Issued in last 3 years
- 0 Published in last 3 years
- 56 Total Citation Count
- Jul 20, 1987 Earliest Filing
- 3 Expired/Abandoned/Withdrawn Patents
Patent Activity in the Last 10 Years
Technologies
- No Technology to Display
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Recent Publications
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Recent Patents
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Expired/Abandoned/Withdrawn Patents
Patent #
Title
Status
Filing Date
Issue/Pub Date
Intl Class
4996411 Method of manufacturing a card having electronic memory and a card obtained by performing said methodExpiredJul 20, 87Feb 26, 91[G06K]
4870522 Rotary electric coupling device for a rotating head recorderExpiredJun 02, 88Sep 26, 89[G11B]
4852155 Systeme d'authentification analogique reciproque entre un terminal et une ligne de transmissionExpiredApr 14, 88Jul 25, 89[H04M]
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