HYDRIL COMPANY LP

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
F16L PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL4528
 
  
 
E21B EARTH OR ROCK DRILLING 492
 
  
 
B23P OTHER WORKING OF METAL; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS 353
 
  
 
F16B DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING 247
 
  
 
B21D WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING 155
 
  
 
B32B LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM1156
 
  
 
C10M LUBRICATING COMPOSITIONS 148
 
  
 
G06Q DATA PROCESSING SYSTEMS OR METHODS, SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL, SUPERVISORY OR FORECASTING PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL, SUPERVISORY OR FORECASTING PURPOSES, NOT OTHERWISE PROVIDED FOR 1173
 
  
 
H01R ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS 1132
 
  
 
H02M APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF 1101

Top Patents (by citation)

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
9052041 Wedge threads with a solid lubricant coatingOct 28, 11Jun 09, 15[F16L, C10M, B21C]
8984734 Step-to-step wedge thread connections and related methodsApr 11, 13Mar 24, 15[F16L, B23P]
8668233 Threaded connection with perturbed flanksDec 21, 06Mar 11, 14[F16L]
8496274 Step-to-step wedge thread connections and related methodsDec 02, 11Jul 30, 13[F16L]
8177262 Mid-seal for expandable connectionsJul 28, 05May 15, 12[F16L]
8171613 Electrically insulated wedge thread connectionDec 07, 07May 08, 12[B23P]
8029025 Single taper wedge thread connection with mid-sealJul 28, 05Oct 04, 11[F16L]
7988205 Wedge thread with torque shoulderJan 21, 10Aug 02, 11[F16L]
7942454 Threads with perturbationsMar 10, 10May 17, 11[F16L]
7850211 Wedge thread connections having a clearance gap volumeJan 24, 07Dec 14, 10[F16L]

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
2012/0074,693 STEP-TO-STEP WEDGE THREAD CONNECTIONS AND RELATED METHODSAbandonedSep 24, 10Mar 29, 12[F16L]
2011/0084,477 WEDGE THREADS WITH A SOLID LUBRICANT COATINGAbandonedOct 04, 10Apr 14, 11[F16L, B23P]
2007/0167,051 DATA COMMUNICATIONS EMBEDDED IN THREADED CONNECTIONSAbandonedDec 28, 06Jul 19, 07[H01R]
2006/0071,473 Helical groove for a tubular connectionAbandonedOct 05, 04Apr 06, 06[F16L]
2003/0222,409 Non-rotating expandable connection with collapsing type sealAbandonedApr 01, 03Dec 04, 03[F16L]
5609440 Apparatus and method for arresting the propagation of a buckle in a pipelineExpiredJun 16, 95Mar 11, 97[F16L]
5542872 Transmission mechanism of a toy motorcycleExpiredJan 26, 95Aug 06, 96[A63H]
4928999 Elastomeric guard seal for tubular connectionsExpiredApr 30, 84May 29, 90[F16L]
4917409 Tubular connectionExpiredSep 06, 88Apr 17, 90[F16L]
4858400 Adjustable shutterExpiredMay 25, 88Aug 22, 89[E06B]
4832126 Diverter system and blowout preventerExpiredJul 24, 86May 23, 89[F16K, E21B]
4828024 Diverter system and blowout preventerExpiredNov 09, 88May 09, 89[E21B]
4817669 Control valveExpiredJun 04, 87Apr 04, 89[F15B]
4817962 Universal tubular connection having a variable metal-to-metal seal width corresponding to material yield strengthExpiredDec 28, 87Apr 04, 89[F16L, F16J]
4795200 Lengthened tubular pin member nose for improving sealing integrity and bearing forcesExpiredMar 09, 88Jan 03, 89[F16L]
4786090 Peaked-top resilient seal ring and connection therewithExpiredDec 04, 86Nov 22, 88[F16L]
4753460 Tubular connection having two thread sets with multiple interengaging characteristicsExpiredApr 26, 85Jun 28, 88[F16L]
4753485 Solution miningExpiredJul 18, 86Jun 28, 88[E21C]
4736967 Tubular pin configuration to prevent galling while ensuring sealingExpiredDec 04, 86Apr 12, 88[F16L]
4730857 Cylindrical threaded connection with uniform interferenceExpiredSep 13, 85Mar 15, 88[F16L]

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