Inventor
SUNDARARAJAN ALAGARSAMY
US33 patents
⚠️ This page may combine multiple inventors who share the name “SUNDARARAJAN ALAGARSAMY”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
SRI ENERGY INC
19 patentsUS11549594B2Jan 10, 2023
Gate valve
SRI ENERGY INC13 citations94
US11131393B2Sep 28, 2021
Gate valve
SRI ENERGY INC15 citations94
US10677360B2Jun 9, 2020
Gate valve
SRI ENERGY INC14 citations94
US12013046B2Jun 18, 2024
Gate valve
SRI ENERGY INC8 citations86
US11644105B2May 9, 2023
Gate valve with seat assembly
SRI ENERGY INC10 citations86
US11125341B2Sep 21, 2021
Gate valve with seat assembly
SRI ENERGY INC11 citations86
US11067193B2Jul 20, 2021
Actuator
SRI ENERGY INC3 citations84
US10563790B2Feb 18, 2020
Actuator
SRI ENERGY INC7 citations84
US10066757B2Sep 4, 2018
Actuator
SRI ENERGY INC9 citations84
US12338708B2Jun 24, 2025
Choke system with capacity for passage of large debris
SRI ENERGY INC7 citations82
US10197077B2Feb 5, 2019
Precise choke systems and methods
SRI ENERGY INC4 citations66
US12442451B2Oct 14, 2025
Gate valve
SRI ENERGY INC0 citations62
US12435797B2Oct 7, 2025
Gate valve with seat assembly
SRI ENERGY INC0 citations62
US12359743B2Jul 15, 2025
Actuator
SRI ENERGY INC0 citations62
US12359754B2Jul 15, 2025
Sliding connector spool
SRI ENERGY INC0 citations62
US11920705B2Mar 5, 2024
Sliding connector spool
SRI ENERGY INC0 citations62
US11859730B2Jan 2, 2024
Pressure actuator with biasing element
SRI ENERGY INC0 citations62
US11885198B2Jan 30, 2024
Choke system with capacity for passage of large debris
SRI ENERGY INC0 citations59
US12345114B2Jul 1, 2025
Annular blow out preventer
SRI ENERGY INC0 citations44
WORLDWIDE OILFIELD MACHINE INC
7 patentsUS6966537B2Nov 22, 2005
Valve with seat assembly
WORLDWIDE OILFIELD MACHINE INC105 citations98
US6684897B2Feb 3, 2004
Valve actuator and method
WORLDWIDE OILFIELD MACHINE INC75 citations98
US6601650B2Aug 5, 2003
Method and apparatus for replacing BOP with gate valve
WORLDWIDE OILFIELD MACHINE INC145 citations98
US6575426B2Jun 10, 2003
Valve system and method
WORLDWIDE OILFIELD MACHINE INC25 citations92
US7578349B2Aug 25, 2009
Lightweight and compact subsea intervention package and method
WORLDWIDE OILFIELD MACHINE INC41 citations91
US7040408B2May 9, 2006
Flowhead and method
WORLDWIDE OILFIELD MACHINE INC58 citations91
US10006266B2Jun 26, 2018
Lightweight and compact subsea intervention package and method
WORLDWIDE OILFIELD MACHINE INC6 citations82
SUNDARARAJAN ALAGARSAMY
6 patentsUS9885420B2Feb 6, 2018
Gate valve
SUNDARARAJAN ALAGARSAMY41 citations97
US9453578B2Sep 27, 2016
Gate valve with seat assembly
SUNDARARAJAN ALAGARSAMY39 citations97
US10174848B2Jan 8, 2019
Gate valve with seat assembly
SUNDARARAJAN ALAGARSAMY13 citations92
US9841117B2Dec 12, 2017
Actuator
SUNDARARAJAN ALAGARSAMY10 citations92
US8205890B2Jun 26, 2012
Resilient high pressure metal-to-metal seal and method
SUNDARARAJAN ALAGARSAMY27 citations92
US8714263B2May 6, 2014
Lightweight and compact subsea intervention package and method
SUNDARARAJAN ALAGARSAMY20 citations90