Inventor
KUMAR CHANDU
US27 patents
⚠️ This page may combine multiple inventors who share the name “KUMAR CHANDU”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
SPM OIL & GAS INC
16 patentsUS11680631B2Jun 20, 2023
Pump gear
SPM OIL & GAS INC2 citations73
US12270496B2Apr 8, 2025
Hinged quick-release connector
SPM OIL & GAS INC1 citations61
US11746775B2Sep 5, 2023
Bearing system for reciprocating pump and method of assembly
SPM OIL & GAS INC0 citations60
US11519396B2Dec 6, 2022
Reciprocating pump
SPM OIL & GAS INC0 citations59
US11898553B2Feb 13, 2024
Power end frame assembly for reciprocating pump
SPM OIL & GAS INC0 citations58
US12546309B2Feb 10, 2026
Stemmed orifice component
SPM OIL & GAS INC0 citations54
US12258849B2Mar 25, 2025
Arrangement for supporting crankshaft bearings in hydraulic fracturing pump
SPM OIL & GAS INC0 citations54
US12398621B2Aug 26, 2025
System and apparatus for unloading well stimulation pumps
SPM OIL & GAS INC0 citations50
US12359660B2Jul 15, 2025
Linear FRAC pump drive system safety deflector
SPM OIL & GAS INC0 citations49
US12196199B2Jan 14, 2025
Intermittent flushing plunger packing assembly
SPM OIL & GAS INC0 citations49
US12385479B2Aug 12, 2025
Pumping system having remote valve blocks
SPM OIL & GAS INC0 citations48
US12258960B2Mar 25, 2025
Keyless gear timing assembly for a reciprocating pump
SPM OIL & GAS INC0 citations48
US12523203B2Jan 13, 2026
Common plunger for a linear actuated pump
SPM OIL & GAS INC0 citations45
US12492697B1Dec 9, 2025
System and method for reduced thread stress for buttress style threads used in frac pump fluid ends
SPM OIL & GAS INC0 citations45
US12486842B1Dec 2, 2025
Removable packing gland assembly
SPM OIL & GAS INC0 citations45
US12560165B2Feb 24, 2026
Pump assembly using a shell bearing with a partial groove
SPM OIL & GAS INC0 citations44
SPM FLOW CONTROL INC
11 patentsUS10781803B2Sep 22, 2020
Reciprocating pump
SPM FLOW CONTROL INC45 citations94
USD759728SJun 21, 2016
Power end frame segment
SPM FLOW CONTROL INC21 citations92
US9879659B2Jan 30, 2018
Support for reciprocating pump
SPM FLOW CONTROL INC13 citations91
USD870156SDec 17, 2019
Power end frame segment
SPM FLOW CONTROL INC4 citations84
USD791192SJul 4, 2017
Power end frame segment
SPM FLOW CONTROL INC3 citations84
US11204030B2Dec 21, 2021
Support for reciprocating pump
SPM FLOW CONTROL INC5 citations83
US10520037B2Dec 31, 2019
Support for reciprocating pump
SPM FLOW CONTROL INC7 citations83
US10087992B2Oct 2, 2018
Bearing system for reciprocating pump and method of assembly
SPM FLOW CONTROL INC5 citations81
US10393182B2Aug 27, 2019
Power end frame assembly for reciprocating pump
SPM FLOW CONTROL INC5 citations80
USD870157SDec 17, 2019
Power end frame segment
SPM FLOW CONTROL INC2 citations73
USD791193SJul 4, 2017
Power end frame segment
SPM FLOW CONTROL INC2 citations73