McDermott Incorporated Patent Department

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
B01J CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS, COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS 1108
 
  
 
B63B SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 137
 
  
 
E02D FOUNDATIONS; EXCAVATIONS; EMBANKMENTS 122

Top Patents (by citation)

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
5380499 Combined heat exchanger and ammonia injection processJun 15, 93Jan 10, 95[B01J]
RE30825 Offshore platform joinderNov 01, 78Dec 15, 81[E02D, B63B]

Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
4858146 Automated design of structures using a finite element databaseExpiredAug 13, 86Aug 15, 89[G05B, G06F]
4822221 Internal flash removal unitExpiredJun 15, 87Apr 18, 89[B23D]
4775265 Removable closure deviceExpiredJul 13, 87Oct 04, 88[E02D]
4765776 Convertible bargeExpiredNov 17, 86Aug 23, 88[F16L, B63B]
4717353 Docking head and plateExpiredJan 21, 87Jan 05, 88[H01R]
4705430 Composite leg platformExpiredJan 29, 86Nov 10, 87[E02B]
4675473 Flexible conductor for weldingExpiredOct 30, 86Jun 23, 87[B23K, H01R]
4594871 Reel type continuous marine pipe laying systemExpiredJul 02, 84Jun 17, 86[B21D]
4506867 Jacking apparatus having a fast repositioning strokeExpiredDec 17, 81Mar 26, 85[B66F]
4498811 Underwater pipeline sealing apparatusExpiredFeb 17, 82Feb 12, 85[F16L]
4497594 Offshore structure and method of sinking sameExpiredSep 30, 82Feb 05, 85[E02B]
4484559 Apparatus for removing material such as concrete from underwater pipelinesExpiredMar 01, 82Nov 27, 84[B28D]
4478389 Jacking apparatus adjustable for alignment variationsExpiredDec 17, 81Oct 23, 84[B66F]
4446977 Roller support for load handling devicesExpiredMar 31, 81May 08, 84[B66C]
4422799 Method for installing submarine pipelines using a marine railway systemExpiredJun 01, 81Dec 27, 83[F16L]
4397582 Method of creating a cold water conduit to be used in ocean thermal energy conversion systemsExpiredMar 31, 81Aug 09, 83[E21D, E21B]
4373835 Removable closure plateExpiredJun 23, 80Feb 15, 83[F02B]
4328416 Seam tracker for automatic welderExpiredNov 01, 79May 04, 82[B23K]
4307977 Removable mudmat and method of use on soft floorExpiredMay 23, 80Dec 29, 81[E02B]
4284385 Method and equipment for handling pipe mounted carriageExpiredAug 15, 79Aug 18, 81[B23Q]

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