WEST DRILLING PRODUCTS AS
Patent Owner
Stats
- 8 US PATENTS IN FORCE
- 0 US APPLICATIONS PENDING
- Nov 21, 2017 most recent publication
Details
- 8 Issued Patents
- 0 Issued in last 3 years
- 0 Published in last 3 years
- 48 Total Citation Count
- Feb 19, 2010 Earliest Filing
- 0 Expired/Abandoned/Withdrawn Patents
Patent Activity in the Last 10 Years
Technologies
Intl Class
Technology
Matters
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Top Patents (by citation)
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Recent Publications
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Recent Patents
Patent #
Title
Filing Date
Issue Date
Intl Class
9822593 Device for a pipe handling unit and method of inserting and withdrawing a pipe string in/from a boreholeFeb 20, 13Nov 21, 17[E21B]
9725955 Arrangement for continuous circulation of drilling fluid during drilling operationsJun 13, 13Aug 08, 17[E21B]
9708854 Device and method for drilling with continuous tool rotation and continuous drilling fluid supplyJun 19, 14Jul 18, 17[E21B]
8844616 Method for withdrawal and insertion of a drill pipe string in a borehole and also a device for use when practicing the methodFeb 19, 10Sep 30, 14[E21B]
8794351 Device and method for drilling with continuous tool rotation and continuous drilling fluid supplyJan 25, 11Aug 05, 14[E21B]
Expired/Abandoned/Withdrawn Patents
- No Patents to Display
Top Inventors for This Owner
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