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Class Information
Number: 285/390
Name: Pipe joints or couplings > Screw
Description: Subject matter comprising screw threads at the coupling interface.










Sub-classes under this class:

Class Number Class Name Patents
285/392 Attached thread bushing 39
285/393 Gland 19
285/391 Interrupted thread 58


Patents under this class:
1 2 3 4 5

Patent Number Title Of Patent Date Issued
8683848 Oil well tubing pressure testing system and method of use Apr. 1, 2014
8668233 Threaded connection with perturbed flanks Mar. 11, 2014
8628120 Tubular threaded seal connection Jan. 14, 2014
8628121 System for use in a wellbore Jan. 14, 2014
8485564 Thread structure of aerator of faucet water outlet Jul. 16, 2013
8439618 Fastener having controllably variable preload and method of forming same May. 14, 2013
8398123 Duct coupling system Mar. 19, 2013
8322754 Nanocomposite coatings for threaded connections Dec. 4, 2012
8302708 Rotational drill wrenches and drilling apparatuses including the same Nov. 6, 2012
8287005 Composite drill pipe and method for forming same Oct. 16, 2012
8262139 Rock-drilling equipment as well as female and male parts therefor Sep. 11, 2012
8245798 Female part and a method for manufacturing female parts Aug. 21, 2012
8220844 Threaded element of a component with opposed threading portions and corresponding tubular threaded connection Jul. 17, 2012
8201855 Pipe fitting Jun. 19, 2012
8079623 Threaded pipe connector Dec. 20, 2011
8075023 Coupling for drilling-with-casing operations Dec. 13, 2011
8070191 Threaded joint for steel pipes Dec. 6, 2011
8056936 Telescopic pipe structure for a marine light Nov. 15, 2011
7997627 Threaded joint for steel pipes Aug. 16, 2011
7980602 Fitting to connect a polyvinyl chloride pipe and a polyethylene pipe Jul. 19, 2011
7914052 Splined connector for a position-sensitive device such as a showerhead Mar. 29, 2011
7896600 Fastener having controllably variable preload and method of forming same Mar. 1, 2011
7883118 Threaded joint for steel pipes Feb. 8, 2011
7883120 Male element for a sealed threaded tubular connection Feb. 8, 2011
7866706 Threaded joint for steel pipe Jan. 11, 2011
7850211 Wedge thread connections having a clearance gap volume Dec. 14, 2010
7845687 Resistance to fatigue of a threaded tubular connection Dec. 7, 2010
7802692 Device for and method of fastening two component members Sep. 28, 2010
7793989 Locking connector with depressions Sep. 14, 2010
7793994 Threaded tubular connection Sep. 14, 2010
7780202 Oilfield tubular connection with increased compression capacity Aug. 24, 2010
7690697 Thread form for tubular connections Apr. 6, 2010
7677069 Threaded joint for an oil well pipe and method for manufacturing same Mar. 16, 2010
7654316 Downhole connector Feb. 2, 2010
7588269 Z-shaped thread form for tubular connections Sep. 15, 2009
7588270 Threaded tubular joint comprising sealing surfaces Sep. 15, 2009
7578043 Coupling tubulars Aug. 25, 2009
7571936 Screw connection element and protective sleeve therefor Aug. 11, 2009
7549682 Threaded pipe connector Jun. 23, 2009
7530370 Marine valve adapter May. 12, 2009
7527304 Floating wedge thread for tubular connection May. 5, 2009
7510219 Threaded connection for oil field applications Mar. 31, 2009
7506901 Resilient locking connection Mar. 24, 2009
7478842 Coupled connection with an externally supported pin nose seal Jan. 20, 2009
7475917 Threaded connection with variable flank angles Jan. 13, 2009
7472927 Tubular member having an anti-galling coating Jan. 6, 2009
7469938 Threaded connection especially for radically plastically expandable conduit Dec. 30, 2008
7470383 Submersible pump drop pipe and casing assembly connection and method of manufacture Dec. 30, 2008
7464449 Method of forming a high-strength sealed connection for expandable tubulars Dec. 16, 2008
7458613 Rotatable fire sprinkler fitting Dec. 2, 2008

1 2 3 4 5










 
 
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