EXPRO NORTH SEA LIMITED
Patent Owner
Stats
- 44 US PATENTS IN FORCE
- 1 US APPLICATIONS PENDING
- Dec 28, 2017 most recent publication
Details
- 44 Issued Patents
- 0 Issued in last 3 years
- 0 Published in last 3 years
- 1,026 Total Citation Count
- Sep 26, 1991 Earliest Filing
- 19 Expired/Abandoned/Withdrawn Patents
Patent Activity in the Last 10 Years
Technologies
Intl Class
Technology
Matters
Rank in Class
Top Patents (by citation)
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Recent Publications
Publication #
Title
Filing Date
Pub Date
Intl Class
Recent Patents
Patent #
Title
Filing Date
Issue Date
Intl Class
9786431 Electrical power and/or electrical signal transmissionDec 13, 11Oct 10, 17[H02J, H04B, H01F, G01D, E21B]
9506341 Transmitting power through a wellhead using at least one toroidJun 19, 12Nov 29, 16[G08B, E21B, G01V]
7806180 Signalling systems and methods for communicating with a downhole location in a well installationMar 20, 06Oct 05, 10[E21B]
Expired/Abandoned/Withdrawn Patents
Top Inventors for This Owner
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