| Patents for F16L 15 - Screw-threaded joints; Forms of screw-threads for such joints (5,444) |
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| 08/05/2004 | US20040149471 Data transmission system for a downhole component |
| 08/05/2004 | DE20305353U1 Well delivery pipe comprises at least two pipe segments whose outer surfaces are roughened by sand blasting or a similar process and/or are coated with a compound consisting of sand and bonding agents |
| 08/05/2004 | DE20305352U1 Well delivery pipe comprises at least two pipe segments whose joint is sealed by means of rings, tapes or a compound which swell when in contact with water |
| 07/29/2004 | WO2004063616A1 Pneumatic joint |
| 07/29/2004 | WO2004018824A3 Magnetic impulse applied sleeve method of forming a wellbore casing |
| 07/29/2004 | WO2003093714A3 Coupling assembly and method |
| 07/29/2004 | WO2003085305A3 Replaceable corrosion resistant tool joint seal |
| 07/29/2004 | US20040145492 Data Transmission Element for Downhole Drilling Components |
| 07/29/2004 | US20040145184 Helically wound expandable tubular insert |
| 07/27/2004 | US6767035 High torque modified profile threaded tubular connection |
| 07/27/2004 | US6767001 Adjustable manifold joining system |
| 07/27/2004 | CA2299384C Sealed threaded pairing |
| 07/22/2004 | WO2004060590A2 Pressure relieved thread connection |
| 07/22/2004 | WO2002084158A3 Hose coupling device |
| 07/22/2004 | WO2002061316A3 Quick locking pipe joint for plain or profiled pipe |
| 07/22/2004 | US20040140669 Thread for pipe joint |
| 07/22/2004 | CA2512069A1 Pressure relieved thread connection |
| 07/21/2004 | CN2627324Y Sawtooth pattern screw thread arrangement |
| 07/21/2004 | CN2627323Y 密封接头 Gland |
| 07/20/2004 | US6764110 Remotely pretensioned threaded tubular connections |
| 07/20/2004 | US6764108 Assembly of hollow torque transmitting sucker rods |
| 07/15/2004 | WO2004029487A3 Metal seal with corrosion resistant alloy overlay |
| 07/15/2004 | US20040135370 Tubing connection arrangement |
| 07/14/2004 | EP1332308A4 Open type wedgethread connection |
| 07/14/2004 | EP1175577A4 Threaded connection with high compressive rating |
| 07/13/2004 | US6761379 Pipe fittings |
| 07/08/2004 | US20040130152 Pressure relieved thread connection |
| 07/08/2004 | DE4220636B4 Verbindungselement, insbesondere Kupplungsmuffe, für eine Schraubverbindung von Injektionsankerstangen von Injektionsankern Connecting element, in particular coupling sleeve for a screw of injection anchor rods for injection of anchors |
| 07/06/2004 | US6758278 Forming a wellbore casing while simultaneously drilling a wellbore |
| 07/01/2004 | WO2004001266A3 Fluid connector |
| 07/01/2004 | US20040123442 Method of manufacturing a threaded joint for oil well pipes |
| 06/30/2004 | CN2622525Y Inlet/outlet joint for gas pressure regulator |
| 06/30/2004 | CN1509387A threaded joint for steel pipe |
| 06/30/2004 | CN1509386A Threaded joint for steel pipe and surface treatment method |
| 06/30/2004 | CN1508449A Pipe screwthread connection device |
| 06/29/2004 | US6755447 Production riser connector |
| 06/29/2004 | US6755444 Slim-type threaded joint for oil well pipes |
| 06/24/2004 | WO2004053377A1 Pipe comprising a pipe end section |
| 06/24/2004 | WO2004053376A1 Method for producing a threaded tubular connection sealed to the outside |
| 06/24/2004 | US20040118569 Tubular members and threaded connections for casing drilling and method |
| 06/24/2004 | DE10257224A1 Double walled pipe with end section, e.g. for internal high pressure forging, has coupling section tapering towards end facing pipe |
| 06/23/2004 | EP1230504B1 Pipe joint |
| 06/23/2004 | CN1507546A Method of manufacturing threaded joint for oil well pipe |
| 06/22/2004 | US6752436 Fatigue-resistant threaded bevelled tubular element |
| 06/17/2004 | US20040113428 Expandable connection |
| 06/17/2004 | US20040113427 Assembly of hollow torque transmitting sucker rods and sealing nipple with improved seal and fluid flow |
| 06/17/2004 | US20040113423 Threaded pipe with surface treatment |
| 06/10/2004 | WO2004048834A1 Improved casing joints |
| 06/10/2004 | WO2004048785A1 Accumulator using internal and external threads |
| 06/10/2004 | WO2004048023A2 Hang-free thread design |
| 06/10/2004 | US20040108720 Double flex seal for tubular connection |
| 06/10/2004 | US20040108719 Threaded tube joint |
| 06/09/2004 | EP1015802A4 Ultra high torque double shoulder tool joint |
| 06/09/2004 | CN1502836A Improved sleeve Joint |
| 06/08/2004 | US6746057 Threaded joint for steel pipes having improved galling resistance and rust-preventing properties |
| 06/03/2004 | US20040104797 Downhole data transmission system |
| 06/03/2004 | DE202004003858U1 Method to hold hemp on outer thread of pipes uses projecting stud formed by two cuts in thread end, to hold hemp end |
| 05/27/2004 | WO2004044473A1 External refacing indicator for a tool joint |
| 05/27/2004 | US20040100098 Hang-free thread design |
| 05/25/2004 | US6739630 Pipe joint and coupling |
| 05/25/2004 | US6739392 Forming a wellbore casing while simultaneously drilling a wellbore |
| 05/25/2004 | CA2324457C Two-step, low torque wedge thread for tubular connector |
| 05/21/2004 | WO2004042263A2 Threaded pipe connection with cylindrical metal-to-metal, high pressure containment seal |
| 05/21/2004 | WO2004029487A9 Metal seal with corrosion resistant alloy overlay |
| 05/20/2004 | US20040094961 Tubing coupling |
| 05/19/2004 | EP1127209B1 Thread coupling for a drill string for percussive rock drilling |
| 05/19/2004 | DE202004003809U1 Pipe line on wall of stable or cow byre etc. to connect drinking bowls to water supply consists of straight cylindrical connection pipe with thread-less ends having threaded cast-on sleeves with threads |
| 05/19/2004 | CN1497126A Sucker rod and sealing short joint assembly with improved sealing device and liquid hollow torque transmission |
| 05/18/2004 | US6736224 Drilling system and method suitable for coring and other purposes |
| 05/13/2004 | WO2004040184A1 Threaded pipe connection |
| 05/13/2004 | WO2003076837A3 Wedgethread pipe connection |
| 05/13/2004 | US20040090062 External refacing indicator for a tool joint |
| 05/12/2004 | EP1418376A1 Method and structure for connecting difficult−to−join pipes to be used at high temperature |
| 05/06/2004 | WO2003076758A3 Double shoulder oilfield tubular connection |
| 05/06/2004 | US20040084901 Threaded pipe connection with cylindrical metal-to-metal, high pressure containment seal |
| 05/06/2004 | US20040084900 Threaded pipe connection |
| 05/04/2004 | US6729658 Threaded tubular element for fatigue resistant threaded tubular joint and resulting threaded tubular joint |
| 05/04/2004 | CA2182360C Fluid-tight connecting apparatus |
| 04/29/2004 | WO2004005665A3 Dovetail thread coupling for expandable tubulars |
| 04/29/2004 | WO2004003327A3 Helically wound insert for expandable tubulars |
| 04/28/2004 | EP1413836A2 Solar collector and tube connector therefore |
| 04/28/2004 | EP1056968A4 Threaded connection for internally clad pipe |
| 04/28/2004 | CN1492980A Fatigue-resistant thread component for tubular thread joint |
| 04/27/2004 | US6725919 Forming a wellbore casing while simultaneously drilling a wellbore |
| 04/22/2004 | WO2004033951A1 Threaded pipe with surface treatment |
| 04/22/2004 | US20040075275 Slim-type threaded joint for oil well pipes |
| 04/21/2004 | EP1411288A1 Threaded joint for steel tube |
| 04/20/2004 | US6722706 Thread from with multifacited flanks |
| 04/20/2004 | US6722705 Medical tubing connector |
| 04/20/2004 | US6722392 Carbon fibers embedded in resin with plastic overmolding |
| 04/15/2004 | US20040070154 Method for sealing threaded pipe joints |
| 04/14/2004 | EP1408269A1 Pipe thread joint |
| 04/14/2004 | CN1489680A Tubular threadet joint trapezoid threads having convex bulged thread surface |
| 04/08/2004 | WO2004029487A2 Metal seal with corrosion resistant alloy overlay |
| 04/07/2004 | CN1488051A Threaded joint for steel pipe with excellent seizure and corrosion resistances |
| 04/06/2004 | US6717501 Downhole data transmission system |
| 04/01/2004 | DE202004000261U1 Connecting system for two tubes forming flagpole comprises external thread on first tube which screws into internal thread on second, union nut containing locking ring screwing over external thread on second tube |
| 03/31/2004 | EP1403464A2 Expandable tubular connection |
| 03/31/2004 | CN1485559A 密封环 Sealing ring |
| 03/31/2004 | CN1144020C Connector for securing heat exchanger tube to heating vessel bulkhead |