NABORS OFFSHORE CORPORATION

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
B66C CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES 130
 
  
 
E04H BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL 129

Top Patents (by citation)

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
5216867 Well mast structureNov 04, 91Jun 08, 93[E04H, B66C]

Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
5921329 Installation and removal of top drive unitsExpiredOct 03, 96Jul 13, 99[E21B]
5794722 Gumbo removalExpiredAug 26, 96Aug 18, 98[G21B]
5749722 Single charge continuous rotary retort furnace with an accessible doorExpiredMay 28, 96May 12, 98[F27B]
5575332 Reeled well tubing systemsExpiredAug 05, 95Nov 19, 96[E21B]
4885983 Self-retaining diaphragm sealExpiredMay 24, 88Dec 12, 89[F01B, F16J]

Top Inventors for This Owner

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