BG PLC

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
B23P OTHER WORKING OF METAL; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS 155

Top Patents (by citation)

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
5966789 Apparatus for assisting in the insertion of an elongate plastic pipe within an existing pipeMar 18, 97Oct 19, 99[B23P]

Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
6354568 Sliding plate valveExpiredNov 06, 00Mar 12, 02[F16K]
6276876 Offshore exploration or production operationExpiredNov 13, 97Aug 21, 01[B63B]
6260657 Seismic pulse generatorExpiredSep 17, 97Jul 17, 01[G01V]
6241875 Method of providing heatExpiredOct 21, 99Jun 05, 01[C10G]
6231746 Direct electrochemistry of enzymesExpiredMar 18, 99May 15, 01[C25B, C12N]
6226855 Method of joining lined pipesExpiredJun 18, 99May 08, 01[B21D]
6199432 Fluid pressure testingExpiredMar 26, 98Mar 13, 01[G01L]
6171435 Method of installing pipesExpiredFeb 23, 98Jan 09, 01[B29C, B08B]
6148864 Permitting two adjacent pipe lengths to be joined togetherExpiredFeb 17, 99Nov 21, 00[F16L]
6116082 Method and apparatus for testing a fluid conduit system for leaksExpiredMay 12, 98Sep 12, 00[G01M]
6111155 Method of producing gas hydrate in two or more hydrate forming regionsExpiredOct 07, 97Aug 29, 00[C07C]
6102624 Method and apparatus for installing a replacement pipeExpiredMay 12, 97Aug 15, 00[F16L]
6071634 Electric power generation system including fuel cellsExpiredSep 02, 98Jun 06, 00[H01M]
6072750 Method for producing seismic pulsesExpiredSep 17, 97Jun 06, 00[G01V]
6062264 Installing a pipe in an existing pipelineExpiredMay 28, 98May 16, 00[F16L]
6036118 Liquid delivery nozzleExpiredOct 24, 97Mar 14, 00[B05B]
6008780 Diver communication equipmentExpiredMar 28, 96Dec 28, 99[G09G]
6005229 Cooking oven including a convection heat source and a microwave heat sourceExpiredNov 26, 97Dec 21, 99[H05B]
5997278 Apparatus for providing an air/fuel mixture to a fully premixed burnerExpiredNov 20, 97Dec 07, 99[F23N]
5993516 Adsorbents for separating nitrogen from a feed gasExpiredApr 09, 98Nov 30, 99[B01D]

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