Santa Fe International Corporation

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
G01S RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES1108

Top Patents (by citation)

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
RE31026 Navigation system for maneuvering a structure about a submerged objectMay 23, 79Sep 07, 82[G01S]

Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
5407302 Method and apparatus for skid-off drillingExpiredFeb 11, 93Apr 18, 95[E02B]
4961671 Method of converting a pipeline laying vessel from a pivotal ramp type to an arcuate typeExpiredFeb 26, 90Oct 09, 90[F16L, B63B]
4808036 Mobile marine operations structureExpiredJan 25, 88Feb 28, 89[E02B]
4725166 Mobile marine operations structureExpiredDec 23, 86Feb 16, 88[E02B]
4702646 Pipe initiation anchorExpiredMar 05, 86Oct 27, 87[F16L]
4695194 Mobile marine operations structureExpiredDec 23, 86Sep 22, 87[E02B]
4666341 Mobile sea barge and plateformExpiredJan 08, 86May 19, 87[E02B]
4627767 Mobile sea barge and platformExpiredJan 09, 86Dec 09, 86[E02B]
4516633 Blind shaft drillingExpiredSep 18, 81May 14, 85[E21D, E21B]
4460293 Mine shaft linerExpiredJul 03, 80Jul 17, 84[E21D]
4431341 Construction of a concrete lined chamberExpiredApr 27, 82Feb 14, 84[E21D]
4423981 Concrete lining of drilled shaftExpiredJul 22, 81Jan 03, 84[E21D]
4361104 Twin hull semisubmersible derrick bargeExpiredMay 14, 79Nov 30, 82[B63B]
4330155 Bore hole miningExpiredMar 26, 80May 18, 82[E21D]
4330225 System for entrenching submerged elongated structuresExpiredSep 24, 79May 18, 82[E02F]
4273469 System and method for laying subsea pipelinesExpiredMar 12, 79Jun 16, 81[F16L, B21D, E21B]
4273067 Method of operating twin hull semisubmersible derrick bargeExpiredMar 21, 79Jun 16, 81[B63B]
4249610 Offshore drilling control cable clamp systemExpiredApr 26, 78Feb 10, 81[E21B]
4232625 Column stabilized semisubmerged drilling vesselExpiredMar 07, 79Nov 11, 80[B63B]
4216896 Automatic pipe welding apparatus and methodExpiredMar 17, 78Aug 12, 80[B23K]

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