Inventor
UNGCHUSRI TEP
US28 patents
⚠️ This page may combine multiple inventors who share the name “UNGCHUSRI TEP”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
FMC CORP
14 patentsUS4576385AMar 18, 1986
Fluid packing assembly with alternating diverse seal ring elements
FMC CORP69 citations95
US4527806AJul 9, 1985
Valve stem packing
FMC CORP69 citations95
US6164707ADec 26, 2000
Step bearing race swivel joint assembly
FMC CORP60 citations94
US4927192AMay 22, 1990
Pipe connector load element
FMC CORP58 citations93
US5149148ASep 22, 1992
Pipe swivel joint with improved bore seal
FMC CORP53 citations92
US4930791AJun 5, 1990
Plastic bore seal
FMC CORP60 citations91
US6371527B1Apr 16, 2002
Swivel joint with stepped bearing races
FMC CORP31 citations90
US5676348AOct 14, 1997
Asymmetric seal segment configuration
FMC CORP31 citations90
US4867483ASep 19, 1989
Pipe connector device
FMC CORP37 citations90
US5031695AJul 16, 1991
Well casing hanger with wide temperature range seal
FMC CORP54 citations89
US5624124AApr 29, 1997
Bore seal assembly with wear ring having curvilinear spring support surface
FMC CORP18 citations82
US5720501AFeb 24, 1998
Swivel joint elbow orientation device
FMC CORP17 citations80
US5931476AAug 3, 1999
Seal with extended wear sleeve
FMC CORP15 citations72
US6007048ADec 28, 1999
Satellite seal arrangement for plug valve, ball valve or gate valve
FMC CORP5 citations60
FMC TECH INC
7 patentsUS10995863B2May 4, 2021
Dual face-type seat seal arrangement for valve applications
FMC TECH INC3 citations69
US10100959B2Oct 16, 2018
Swivel joint for oilfield pumping stimulation
FMC TECH INC2 citations68
US11674621B2Jun 13, 2023
Hammer union connection and related methods of assembly
FMC TECH INC0 citations60
US12540539B2Feb 3, 2026
Well fracture systems and methods
FMC TECH INC0 citations58
US12480393B2Nov 25, 2025
Well fracture systems and methods
FMC TECH INC0 citations58
US12180818B2Dec 31, 2024
Well fracture systems and methods
FMC TECH INC0 citations58
US10619774B2Apr 14, 2020
Swivel joint for oilfield pumping stimulation
FMC TECH INC0 citations48
FMC TECHNOLOGIES
4 patentsUSRE39695EJun 19, 2007
Swivel joint with stepped bearing races
FMC TECHNOLOGIES27 citations90
US6554249B2Apr 29, 2003
Plug valve having seal segments with booster springs
FMC TECHNOLOGIES36 citations86
US6595555B2Jul 22, 2003
Coiled tubing swivel with stepped bearing races
FMC TECHNOLOGIES19 citations83
US9239125B2Jan 19, 2016
Manifold assembly with multiple articulating arm assemblies
FMC TECHNOLOGIES12 citations82