Inventor
STACHOWIAK JR JOHN EDWARD
US14 patents
⚠️ This page may combine multiple inventors who share the name “STACHOWIAK JR JOHN EDWARD”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
WEATHERFORD TECH HOLDINGS LLC
10 patentsUS10844852B2Nov 24, 2020
Long-stroke pumping unit
WEATHERFORD TECH HOLDINGS LLC5 citations83
US10113544B2Oct 30, 2018
Long-stroke pumping unit
WEATHERFORD TECH HOLDINGS LLC3 citations72
US12429046B2Sep 30, 2025
Long-stroke pumping unit
WEATHERFORD TECH HOLDINGS LLC0 citations61
US12116992B2Oct 15, 2024
Long-stroke pumping unit
WEATHERFORD TECH HOLDINGS LLC0 citations61
US11781543B2Oct 10, 2023
Long-stroke pumping unit
WEATHERFORD TECH HOLDINGS LLC0 citations61
US11761270B2Sep 19, 2023
Operating tool for an artificial lift system
WEATHERFORD TECH HOLDINGS LLC0 citations50
US10443769B2Oct 15, 2019
Pivot joint
WEATHERFORD TECH HOLDINGS LLC0 citations50
US10138884B2Nov 27, 2018
Nickel corrosion barrier under chrome for sucker rod pumps
WEATHERFORD TECH HOLDINGS LLC1 citations50
US9482227B2Nov 1, 2016
Wiper assembly for a pump
WEATHERFORD TECH HOLDINGS LLC1 citations50
US9617835B2Apr 11, 2017
Barrier for a downhole tool
WEATHERFORD TECH HOLDINGS LLC0 citations38