EXPLORATION & PRODUCTION RESEARCH INSTITUTE, SINOPEC
Patent Owner
Stats
- 3 US PATENTS IN FORCE
- 0 US APPLICATIONS PENDING
- Sep 23, 2008 most recent publication
Details
- 3 Issued Patents
- 0 Issued in last 3 years
- 0 Published in last 3 years
- 82 Total Citation Count
- Jan 14, 2003 Earliest Filing
- 0 Expired/Abandoned/Withdrawn Patents
Patent Activity in the Last 10 Years
0
0
Technologies
Top Patents (by citation)
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Recent Publications
- No Recent Publications to Display
Recent Patents
Patent #
Title
Filing Date
Issue Date
Intl Class
7426965 Power transmission unit of an impactor, a hydraulic jet impactor and the application thereofJan 14, 03Sep 23, 08[B23Q]
7323434 Electropositive production well treating fluid and method of preparing the sameNov 21, 03Jan 29, 08[C09K]
7158886 Automatic control system and method for bottom hole pressure in the underbalance drillingOct 29, 04Jan 02, 07[E21B]
Expired/Abandoned/Withdrawn Patents
- No Patents to Display
Top Inventors for This Owner
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