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Inventor
MARQUEZ JOHN S
US
4 patents
⚠️ This page may combine multiple inventors who share the name “MARQUEZ JOHN S”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
SPM OIL & GAS INC
3 patents
US11519396B2
Dec 6, 2022
Reciprocating pump
SPM OIL & GAS INC
0 citations
59
US12546309B2
Feb 10, 2026
Stemmed orifice component
SPM OIL & GAS INC
0 citations
54
US12560165B2
Feb 24, 2026
Pump assembly using a shell bearing with a partial groove
SPM OIL & GAS INC
0 citations
44
SPM FLOW CONTROL INC
1 patent
US10781803B2
Sep 22, 2020
Reciprocating pump
SPM FLOW CONTROL INC
45 citations
94