| Patents for F16L 15 - Screw-threaded joints; Forms of screw-threads for such joints (5,444) |
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| 05/30/2012 | CN202260303U Hexagonal hose connector |
| 05/30/2012 | CN202252628U Full anti-corrosion connecting structure for steel lined plastic compound pipeline |
| 05/30/2012 | CN202252539U Quick tee joint with male adapter for pipeline |
| 05/30/2012 | CN202252531U Internal threaded three-way conversion joint for clamp pressing type pipe fitting |
| 05/30/2012 | CN202252500U Full wave ripple connecting pipe |
| 05/30/2012 | CN202252488U Oil joint |
| 05/30/2012 | CN202252464U Improved oil circuit block |
| 05/30/2012 | CN202252461U Inner thread adapter connector of clamping and pressing type pipe body |
| 05/30/2012 | CN202252453U Non-fixed-size stove pipe |
| 05/30/2012 | CN202252452U Hole expansion type connector for oil tank |
| 05/30/2012 | CN202252451U Female threaded union |
| 05/30/2012 | CN202252450U Oil inlet pipe connector device for oil film bearing block of backup roller for grinding roller |
| 05/30/2012 | CN202252449U Straight joint with external threads |
| 05/30/2012 | CN202252448U Mining oil joint |
| 05/30/2012 | CN202252219U Valve switch for underwater cleaning device |
| 05/30/2012 | CN101649935B Circular arc thread dental pattern |
| 05/29/2012 | CA2491300C Dovetail thread coupling for expandable tubulars |
| 05/24/2012 | WO2012066266A1 An improved seal between pipes |
| 05/24/2012 | US20120126528 Automotive engine cooling pipe apparatus and method of use |
| 05/24/2012 | CA2727754A1 An improved seal between pipes |
| 05/23/2012 | EP2454513A1 Self-unlocking fluid-tight connector |
| 05/23/2012 | CN202228834U External thread three-way changing joint of clamp-press pipe fitting |
| 05/23/2012 | CN202228818U Connection sealing piece of steel plastic composite pipe and meter |
| 05/23/2012 | CN202228817U External thread switching adapter of clamping type tube body |
| 05/23/2012 | CN102463555A 快速实现连接的管路螺纹连接机 Quick connect tubing connector machine screw |
| 05/22/2012 | CA2547853C High-strength sealed connection for expandable tubulars |
| 05/17/2012 | US20120119489 Tightly threaded joint for oil field pipes |
| 05/17/2012 | US20120117784 Torque Limiting Fluid Connector System |
| 05/16/2012 | EP2452114A1 Joining device for conduits and associated joining process |
| 05/16/2012 | EP2452111A1 Arrow-shaped thread form with tubular connections |
| 05/16/2012 | EP2134997B1 Super high torque dope-free threaded joint |
| 05/16/2012 | CN202220917U Pipeline connecting device |
| 05/16/2012 | CN202220916U Regular-polygonal polypropylene rib connector |
| 05/16/2012 | CN202220915U Polypropylene pipe fitting in threaded connection |
| 05/16/2012 | CN102459376A Photocurable composition suitable for rust prevention of a threaded joint for steel pipes |
| 05/16/2012 | CN102454838A Graphite tube connection structure |
| 05/10/2012 | WO2012060474A1 Tubular threaded joint having improved low temperature performance |
| 05/10/2012 | WO2012060472A1 Tubular threaded joint having improved high torque performance |
| 05/10/2012 | US20120112456 Photocurable composition suitable for rust prevention of a threaded joint for steel pipes |
| 05/10/2012 | CA2816260A1 Tubular threaded joint having improved high torque performance |
| 05/10/2012 | CA2815791A1 Tubular threaded joint having improved low temperature performance |
| 05/09/2012 | CN102449471A Method for evaluating connection state of pipe thread coupling, method for pipe thread coupling connection, and device for evaluating connection state of pipe thread coupling |
| 05/03/2012 | WO2012056500A1 Screw connector for oil well pipe |
| 05/03/2012 | US20120104751 Tubular joint having wedge threads with surface coating |
| 05/03/2012 | CA2720300A1 Transitional composite coupling |
| 05/02/2012 | CN202209490U Underground pipeline connector |
| 05/02/2012 | CN202209489U Above-ground pipeline connector |
| 05/02/2012 | CN202209488U Extension sleeve for floor embedded part |
| 05/01/2012 | US8167340 Drill stem tubular connection with internal stiffener ring |
| 04/26/2012 | DE102011075046A1 Montageelement mit Klemmkraftverteiler Mounting member with clamping force distribution |
| 04/25/2012 | EP2444704A1 Pipe coupling |
| 04/25/2012 | EP1728018B9 Threaded tubular connection which is resistant to bending stresses |
| 04/25/2012 | CN202203559U 可调向高压接头 Adjustable high pressure fittings |
| 04/25/2012 | CN202203548U 一种管路接头 One kind of pipe joints |
| 04/25/2012 | CN202203547U 一种锥面av契合型管道接口 One kind of cone-type pipe interface av fit |
| 04/25/2012 | CN202203546U 阀门或管件和太阳能换热器组合阀 Valves or fittings and solar heat exchanger combination valve |
| 04/25/2012 | CN202203545U 一种改进的api套管圆螺纹接头 An improved api casing round the nipple |
| 04/25/2012 | CN202203544U 一种钢塑管接头 One kind of steel pipe fittings |
| 04/24/2012 | CA2515176C A threaded joint for tubes |
| 04/19/2012 | DE102010048382A1 Corrosion-resistant armature for gas- and water networks, has connecting thread, where connecting thread is arranged in threaded insert, and threaded insert is inserted in through-opening of armature housing |
| 04/18/2012 | CN202195212U 用于消防的快速连接头 Quick connectors for firefighting |
| 04/18/2012 | CN202195187U 叉车管路连接管 Forklift pipeline connecting pipe |
| 04/18/2012 | CN202195186U Hydraulic pipe joint |
| 04/18/2012 | CN202193593U 叉车倾斜连接管 Truck tilt connecting pipe |
| 04/18/2012 | CN102422067A Threaded joint for pipes |
| 04/18/2012 | CN101617164B Protection device for a female end of a threaded tubular joint component with an unscrewing |
| 04/12/2012 | US20120086202 Connecting device with locking by threaded claws and connector comprising such a device |
| 04/11/2012 | EP2438099A1 Photocurable composition suitable for rust prevention of a threaded joint for steel pipes |
| 04/11/2012 | CN202188261U 快速连接抢修管件 Quick connect fittings repair |
| 04/11/2012 | CN202188252U 冲锋舟快速充气转换接头组件 Assault rapid inflation adapter assembly |
| 04/11/2012 | CN202188244U 直管转接头 Straight adapter |
| 04/11/2012 | CN202188007U 一种防止转向高压管垫片脱落的结构 A method of preventing loss of steering high pressure pipe gasket structure |
| 04/10/2012 | US8151461 Method for producing a threaded tubular connection sealed by radial expansion |
| 04/04/2012 | CN102401201A 连接汽车管道的管连接装置，排气装置，进气系统和汽车 Tube conduit connection means connected to the car, exhaust, intake system, and the car |
| 04/03/2012 | US8146960 Two hermetic threaded tubular joints |
| 04/03/2012 | US8146959 Fatigue resistant pipe string component |
| 04/03/2012 | CA2502193C Connecting piece comprising a gripping element on the outer surface for rotating the connecting piece |
| 04/02/2012 | DE202011005081U1 Flexibler Flange zur individuellen Platzierung von Ein- und Auslässen in Indoorboxen jeglichen Materials, klippbar, erweiterbar Flexible Flange for individual placement of inlets and outlets in indoor boxes of any material, klippbar, expandable |
| 03/29/2012 | WO2012040275A2 Step-to-step wedge thread connections and related methods |
| 03/29/2012 | WO2012039801A2 Pipe fitting apparatus |
| 03/29/2012 | WO2012037815A1 Sealing structure of juice extractor |
| 03/29/2012 | US20120074692 Connecting Oil Country Tubular Goods |
| 03/29/2012 | US20120074690 Step-to-step wedge thread connections and related methods |
| 03/29/2012 | DE10020388B4 Bohrgestänge mit Gewindeverbindung Drill pipe with threaded connection |
| 03/29/2012 | CA2812134A1 Step-to-step wedge thread connections and related methods |
| 03/28/2012 | CN202176840U 软管 Hose |
| 03/27/2012 | US8141630 Sucker rod string |
| 03/22/2012 | WO2012034516A1 Bi-metal composite tube |
| 03/22/2012 | US20120068458 Threated connection for drilling and operating hydrocarbon wells |
| 03/21/2012 | CN202171071U 一种新型接头 A new joint |
| 03/21/2012 | CN102384319A Pipe joint |
| 03/21/2012 | CN101542277B Method for evaluating fastening state of threaded joint of pipes or tubes and method for fastening threaded joint of pipes or tubes using the method |
| 03/20/2012 | US8136846 Cylindrical tapered thread form for tubular connections |
| 03/20/2012 | US8136216 Method of coupling expandable tubing sections |
| 03/20/2012 | CA2678921C Threaded joint for steel pipes |
| 03/20/2012 | CA2663252C Threaded joint for steel pipes |
| 03/14/2012 | CN202165726U Pipeline turning resistant device for L-shaped rotary joint of steam pipeline |
| 03/14/2012 | CN202165725U 一种芯管管头连接装置 One kind of the core tube connector device |
| 03/14/2012 | CN202165724U 一种密封型油管接头 A sealed-type tubing fittings |
| 03/14/2012 | CN202165720U 新型钢塑管对丝接头 The new steel pipe fittings for wire |