SPERRY-SUN DRILLING SERVICES, INC.
Patent Owner
Stats
- 1 US PATENTS IN FORCE
- 0 US APPLICATIONS PENDING
- May 23, 1995 most recent publication
Details
- 1 Issued Patents
- 0 Issued in last 3 years
- 0 Published in last 3 years
- 153 Total Citation Count
- Jun 16, 1993 Earliest Filing
- 1 Expired/Abandoned/Withdrawn Patents
Patent Activity in the Last 10 Years
Technologies
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Technology
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Expired/Abandoned/Withdrawn Patents
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Title
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Issue/Pub Date
Intl Class
5417295 Method and system for the early detection of the jamming of a core sampling device in an earth borehole, and for taking remedial action responsive theretoExpiredJun 16, 93May 23, 95[E21B]
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