| Patents for F16L 15 - Screw-threaded joints; Forms of screw-threads for such joints (5,444) |
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| 02/16/2011 | CN201748056U Multifunctional water discharge joint |
| 02/16/2011 | CN201748055U Pipe connector with multiple sensor mounting positions |
| 02/16/2011 | CN201748050U Multifunctional spliced metal corrugated pipe |
| 02/16/2011 | CN101973461A Unloading connector for large flexible powder material package |
| 02/16/2011 | CN101614306B Thread coupling for steel pipes |
| 02/15/2011 | US7887098 Locking device for built pipe connections |
| 02/15/2011 | CA2466791C Premium tubular threaded joint comprising at least a threaded element with end lip |
| 02/09/2011 | CN201739657U Seepage-proofing plastic-metal pipe joint |
| 02/09/2011 | CN201738836U Threading connector for pipes |
| 02/09/2011 | CN101655175B Machining and forming method of compression-resisting leakproof shedding preventing pipeline joint |
| 02/09/2011 | CN101576183B Expansion sleeve joint with double hook shaped thread connection |
| 02/09/2011 | CN101517300B 钢管用螺纹接头 A threaded joint |
| 02/08/2011 | US7883120 Male element for a sealed threaded tubular connection |
| 02/08/2011 | US7883117 Locking device and a line fitting provided therewith |
| 02/08/2011 | CA2508461C Method for producing a threaded tubular connection sealed to the outside |
| 02/07/2011 | CA2674984A1 Methods for rehabilitating conduits using structural liners |
| 02/03/2011 | WO2011014090A1 Bottomhole assembly |
| 02/02/2011 | CN201731196U Flameproof type anti-explosion gas channel or liquid channel interface device |
| 02/02/2011 | CN201731195U Water pipe joint sealing device |
| 02/02/2011 | CN201731194U Sealing structure of spiral pipe fitting |
| 02/02/2011 | CN101586721B Line pipe joint structure |
| 01/26/2011 | CN201723868U Self connection type oil sleeve pipe |
| 01/26/2011 | CN201723178U Oil casing provided with spherical steps |
| 01/26/2011 | CN201723177U Oil bushing with double-step spherical seal surface and unequal spaced thread |
| 01/26/2011 | CN201723176U Oil casing with double-step tapered sealing surface |
| 01/26/2011 | CN201723175U Oil sleeve with conical step sealing surface and unequally spaced threads |
| 01/26/2011 | CN101960195A Threaded joint for steel pipes |
| 01/25/2011 | US7874054 Method for producing tubular component provided with mutually oriented threaded elements |
| 01/25/2011 | CA2574130C Tubing connection arrangement |
| 01/19/2011 | CN201715131U Airtight saw-toothed thread connector and casing and coupling utilizing same |
| 01/19/2011 | CN201715130U Self filtering type pipe connection bolt |
| 01/19/2011 | CN201715129U Internal and external threaded connector |
| 01/19/2011 | CN201714315U Improved round thread air-tight seal connecting structure |
| 01/13/2011 | WO2011005669A1 Arrow-shaped thread form with tubular connections |
| 01/13/2011 | CA2769936A1 Arrow-shaped thread form with tubular connections |
| 01/12/2011 | EP1394450B1 Metal packing |
| 01/12/2011 | CN201706098U Clamping sleeve type pipe joint |
| 01/12/2011 | CN201706092U Tapered thread connector of aeration plate |
| 01/12/2011 | CN201705230U Special threading connector for sleeve with small external diameter |
| 01/12/2011 | CN101943303A Rotatable sub-quality water supply joint used for improving water quality |
| 01/12/2011 | CN101943300A Pipe joint |
| 01/11/2011 | US7867330 Method for composing a nano-particle metal treatment composition for creating a ceramic-metal layer |
| 01/11/2011 | US7866708 Joining tubular members |
| 01/11/2011 | US7866706 Threaded joint for steel pipe |
| 01/05/2011 | EP2268930A1 Conical screw coupling |
| 01/05/2011 | CN201696759U Pipe thread flexible joint |
| 01/05/2011 | CN201693013U Device for automatically extruding union nut to neck |
| 01/05/2011 | CN101939579A Pipe screw joint |
| 01/05/2011 | CN101520116B Corrugated pipe joint |
| 01/05/2011 | CN101194125B Threaded connectors for oil field tubular element and method for processing threaded connectors |
| 12/30/2010 | DE202009005038U1 Wellrohranschlussverschraubung Wellrohranschlussverschraubung |
| 12/29/2010 | EP1378698B1 Threaded joint for steel pipe |
| 12/29/2010 | CN201688048U Sealing device of oil fume exhaust tube |
| 12/23/2010 | US20100320755 Apparatus and method of zero clearance connection with optional sensing function |
| 12/22/2010 | CN201680074U Screw-locked double-hot-melting steel-plastic composite pipe fitting |
| 12/22/2010 | CN101668978B Threaded joint for steel pipes |
| 12/22/2010 | CN101358673B Clamp type high-pressure pipe joint |
| 12/15/2010 | CN201672632U Air-conditioner condensed water recycling device |
| 12/15/2010 | CN201672181U Motor vehicle threaded baffle ring airtight sealing joint |
| 12/15/2010 | CN201672180U Leak-proof hydraulic joint |
| 12/15/2010 | CN201671558U Metal spherical sealing double-shoulder oil drill rod connector |
| 12/15/2010 | CN101451639B Bimetal joint |
| 12/09/2010 | WO2010140703A1 Photocurable composition suitable for rust prevention of a threaded joint for steel pipes |
| 12/09/2010 | CA2763857A1 Photocurable composition suitable for rust prevention of a threaded joint for steel pipes |
| 12/08/2010 | CN101910548A Sealed threaded tubular connection which is resistant to successive pressure loads |
| 12/08/2010 | CN101910387A Pipe screw joint with lubricating film |
| 12/08/2010 | CN101482205B Sealing pipeline connector with digitized interface |
| 12/07/2010 | US7846365 Method of manufacture of a nut and tail assembly |
| 12/07/2010 | US7845687 Resistance to fatigue of a threaded tubular connection |
| 12/07/2010 | CA2578008C Threaded joint for steel pipes |
| 12/02/2010 | US20100301603 Threaded connection comprising at least one threaded element with an end lip for a metal tube |
| 12/02/2010 | DE202010008384U1 Anschlussvorrichtung Connection device |
| 12/02/2010 | DE202009006340U1 Flansch für eine Kältemittelleitung Flange for a refrigerant line |
| 12/01/2010 | CN201661787U Fixed connector of internal thread |
| 12/01/2010 | CN201661786U External threaded fixed connecting head |
| 12/01/2010 | CN201661246U Petroleum expansion pipe threaded joint connection structure |
| 12/01/2010 | CN101899953A Thread joint structure for high-performance oil casing |
| 12/01/2010 | CN101559447B Thin wall pipe connector and processing method thereof |
| 12/01/2010 | CN101539225B Connecting mechanism of sealed insulation pipelines |
| 12/01/2010 | CN101509582B Structure and method for enhancing shearing intensity of composite material pipe joint by long and thin lever of composite material |
| 12/01/2010 | CN101265998B Filament pair with reinforcing rib and preparation method |
| 12/01/2010 | CN101095003B Expandable threaded connection |
| 11/30/2010 | CA2526674C Threaded tubular connection with progressive axial thread interference |
| 11/24/2010 | CN201653813U Rigid circular pipe pressure testing connection device |
| 11/24/2010 | CN201651635U Shower tap female elbow |
| 11/24/2010 | CN201651630U Double-head rectangular quick screwed connection and anti-loosing device |
| 11/24/2010 | CN201651608U External thread structure |
| 11/24/2010 | CN201651607U Copper plated internal thread straight joint |
| 11/24/2010 | CN201651606U Directly-welded outer-tooth joint of oil-gas bucket |
| 11/24/2010 | CN201651299U Seal ring of PVC-U lined steel-plastic composite pipe fitting |
| 11/24/2010 | CN201647389U Connecting screwed tube for assembling dumbbell |
| 11/23/2010 | US7837233 Exhaust system slip joint |
| 11/23/2010 | CA2486177C Tubular goods and liners |
| 11/18/2010 | DE202010010984U1 Wasserdichte Verbindung für Kabel und Wellenschlauch Waterproof connection for cables and corrugated hose |
| 11/17/2010 | CN201636458U Threaded connector facilitating seal tape winding |
| 11/17/2010 | CN201636449U Water injection pipe for hydrofracturing measurement |
| 11/17/2010 | CN201636432U Water tap with linking device |
| 11/11/2010 | US20100282477 Sleeve for expandable tubular threaded connection |
| 11/10/2010 | CN201628037U Y-shaped connecting pipe |
| 11/10/2010 | CN201628027U Connection structure of inner joint and outer joint of pipeline |