BJ TOOL SERVICES LTD.

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
E21B EARTH OR ROCK DRILLING 690

Top Patents (by citation)

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
8336615 Low pressure-set packerNov 27, 06Dec 25, 12[E21B]
7997337 Eutectic material-based seal element for packersFeb 26, 10Aug 16, 11[E21B]
7673692 Eutectic material-based seal element for packersFeb 16, 07Mar 09, 10[E21B]
6782954 Open hole straddle toolNov 26, 02Aug 31, 04[E21B]
6341653 Junk basket and method of useDec 10, 99Jan 29, 02[E21B]
6244642 Retrievable bridge plug and retrieving toolJul 18, 00Jun 12, 01[E21B]

Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
2010/0018,694 EUTECTIC MATERIAL-BASED SEAL ELEMENT FOR PACKERSAbandonedOct 05, 09Jan 28, 10[E21B]
2010/0019,426 SPRING/SEAL ELEMENTAbandonedOct 06, 09Jan 28, 10[F16F]
2007/0200,299 SPRING/SEAL ELEMENTAbandonedFeb 16, 07Aug 30, 07[F16J]
6296054 Steep pitch helix packerExpiredMar 10, 00Oct 02, 01[E21B]

Top Inventors for This Owner

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