CALEDUS LIMITED

Patent Owner

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
E21B EARTH OR ROCK DRILLING 294

Top Patents (by citation)

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
6223823 Method of and apparatus for installing casing in a wellJun 02, 99May 01, 01[E21B]
5918674 Casing and method of installing the casing in a wellMar 12, 97Jul 06, 99[E21B]

Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
2010/0032,170 METHOD AND APPARATUS FOR RUNNING TUBULARSAbandonedOct 04, 07Feb 11, 10[E21B]
4907661 Drill pipe tubing and casing protectorsExpiredMay 23, 88Mar 13, 90[E21B]

Top Inventors for This Owner

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