Inventor · disambiguated record
John Edward Stachowiak, Jr.
Also filed as: STACHOWIAK JOHN E · STACHOWIAK JOHN E JR · STACHOWIAK JOHN EDWARD · STACHOWIAK JR JOHN
29 granted patents·32 pending applications·96 citations·filing 2004–2024
95Inventor score
Files withWEATHERFORD TECH HOLDINGS LLC26STACHOWIAK JR JOHN EDWARD10DEWALCH TECH INC7DEWALCH TECHNOLOGIES INC6STACHOWIAK JOHN E JR5
Top patents by PatentIndex Score
61 records- 0195US12152451B2Quarter-turn anchor catcher having anti-rotation sleeve and allowing for high annular flowWEATHERFORD TECH HOLDINGS LLC·Filed 2022·Granted Nov 26, 2024·4 cites·20 claims
- 0292US10844852B2Long-stroke pumping unitWEATHERFORD TECH HOLDINGS LLC·Filed 2018·Granted Nov 24, 2020·5 cites·17 claims
- 0391US10385663B2Subsurface pump for use in well artificial lift operations having an interior flow passage of a plunger being in communication with a fluid chamber via a filterWEATHERFORD TECH HOLDINGS LLC·Filed 2016·Granted Aug 20, 2019·7 cites·12 claims
- 0490US11091980B2Streamlined valve assembly for downhole pump of reciprocating pump systemWEATHERFORD TECH HOLDINGS LLC·Filed 2018·Granted Aug 17, 2021·6 cites·25 claims
- 0588US10107088B2Centrifugal separator for downhole pumpWEATHERFORD TECH HOLDINGS LLC·Filed 2016·Granted Oct 23, 2018·11 cites·20 claims
- 0687US10731446B2Diversion plunger for reciprocating rod pumpWEATHERFORD TECH HOLDINGS LLC·Filed 2016·Granted Aug 4, 2020·9 cites·41 claims
- 0787US10113544B2Long-stroke pumping unitWEATHERFORD TECH HOLDINGS LLC·Filed 2016·Granted Oct 30, 2018·3 cites·19 claims
- 0884US10851927B2Security devices including a retained lock, shroud, and plugDEWALCH TECH INC·Filed 2018·Granted Dec 1, 2020·4 cites·19 claims
- 0984US10767445B2Valve assembly for downhole pump of reciprocating pump systemWEATHERFORD TECH HOLDINGS LLC·Filed 2018·Granted Sep 8, 2020·5 cites·29 claims
- 1083US12429046B2Long-stroke pumping unitWEATHERFORD TECH HOLDINGS LLC·Filed 2024·Granted Sep 30, 2025·0 cites·20 claims
- 1181US10138884B2Nickel corrosion barrier under chrome for sucker rod pumpsWEATHERFORD TECH HOLDINGS LLC·Filed 2015·Granted Nov 27, 2018·1 cites·20 claims
- 1279US10450847B2Subsurface reciprocating pump for gassy and sandy fluidsWEATHERFORD TECH HOLDINGS LLC·Filed 2017·Granted Oct 22, 2019·2 cites·20 claims
- 1378US12116992B2Long-stroke pumping unitWEATHERFORD TECH HOLDINGS LLC·Filed 2023·Granted Oct 15, 2024·0 cites·22 claims
- 1478US2023251288A1Securing Apparatus and MethodDEWALCH TECH INC·Filed 2022·Application pending·0 cites
- 1577US12146386B2Valve assembly for downhole pump of reciprocating pump systemWEATHERFORD TECH HOLDINGS LLC·Filed 2021·Granted Nov 19, 2024·1 cites·25 claims
- 1672US11781543B2Long-stroke pumping unitWEATHERFORD TECH HOLDINGS LLC·Filed 2020·Granted Oct 10, 2023·0 cites·18 claims
- 1771US10273762B2On-off tool for sucker rod stringWEATHERFORD TECH HOLDINGS LLC·Filed 2015·Granted Apr 30, 2019·3 cites·25 claims
- 1870US10823761B2Securing apparatus and methodSTACHOWIAK JR JOHN EDWARD·Filed 2011·Granted Nov 3, 2020·2 cites·74 claims
- 1970US9482227B2Wiper assembly for a pumpWEATHERFORD TECH HOLDINGS LLC·Filed 2013·Granted Nov 1, 2016·1 cites·17 claims
- 2070US2021011055A1Apparatus and Method for Securing an EnclosureDEWALCH TECH INC·Filed 2020·Application pending·0 cites
- 2170US2025027383A1Valve assembly for downhole pump of reciprocating pump systemWEATHERFORD TECH HOLDINGS LLC·Filed 2024·Application pending·0 cites
- 2269US10822839B2Retained lock system and methodSTACHOWIAK JR JOHN EDWARD·Filed 2010·Granted Nov 3, 2020·4 cites·20 claims
- 2369US2021055331A1Method and Apparatus for Securing a Watthour Meter BoxDEWALCH TECH INC·Filed 2020·Application pending·0 cites
- 2467US10900483B2Wiper ring assembly with energizing memberWEATHERFORD TECH HOLDINGS LLC·Filed 2018·Granted Jan 26, 2021·1 cites·19 claims
- 2567US7176376B2Apparatus and method for securing a watt-hour meter socket boxDEWALCH TECHNOLOIGES INC·Filed 2004·Granted Feb 13, 2007·24 cites·26 claims
- 2666US10077616B2Wiper and seal assembly for a pumpWEATHERFORD LAMB INC·Filed 2014·Granted Sep 18, 2018·2 cites·4 claims
- 2766US2021164265A1Retained Lock System and MethodDEWALCH TECH INC·Filed 2020·Application pending·0 cites
- 2865US2021215743A1Securing Apparatus and MethodDEWALCH TECH INC·Filed 2020·Application pending·0 cites
- 2965US2021164266A1Retained Lock System and MethodDEWALCH TECH INC·Filed 2020·Application pending·0 cites
- 3060US11255171B2Method of pumping fluid from a wellbore by a subsurface pump having an interior flow passage in communication with a fluid chamber via a filter positioned in a side wall of a plungerWEATHERFORD TECH HOLDINGS LLC·Filed 2019·Granted Feb 22, 2022·0 cites·14 claims
- 3157US2008276668A1Retained lock system and methodSTACHOWIAK JR JOHN EDWARD·Filed 2007·Application pending·0 cites
- 3255US2010295255A1Retaining apparatus for a sealDEWALCH NORMAN BINZ·Filed 2007·Application pending·0 cites
- 3355US2008143123A1Locking apparatus and methodDEWALCH NORMAN BINZ·Filed 2007·Application pending·0 cites
- 3453US2013263430A1Apparatus and Method for Securing an EnclosureDEWALCH TECHNOLOGIES INC·Filed 2013·Application pending·0 cites
- 3553US2013212864A1Method and Apparatus for Securing a Watthour Meter BoxDEWALCH TECHNOLOGIES INC·Filed 2013·Application pending·0 cites
- 3652US11761270B2Operating tool for an artificial lift systemWEATHERFORD TECH HOLDINGS LLC·Filed 2021·Granted Sep 19, 2023·0 cites·14 claims
- 3752US2006272369A1Retained lock system and methodSTACHOWIAK JOHN E JR·Filed 2006·Application pending·0 cites
- 3852US2009309376A1Securing apparatus and methodJOHN EDWARD STACHOWIAK JR·Filed 2009·Application pending·0 cites
- 3952US2019211630A1Corrosion resistant sucker rodWEATHERFORD TECH HOLDINGS LLC·Filed 2017·Application pending·0 cites
- 4052US2008264117A1Locking apparatus and methodDEWALCH NORMAN BINZ·Filed 2007·Application pending·0 cites
- 4152US2006267355A1Locking apparatus and methodSTACHOWIAK JOHN E JR·Filed 2006·Application pending·0 cites
- 4251US2011206449A1Retained Lock System and MethodDEWALCH TECHNOLOGIES INC·Filed 2010·Application pending·0 cites
- 4351US2009268381A1Method and apparatus for securing a watthour meter boxSTACHOWIAK JR JOHN EDWARD·Filed 2008·Application pending·0 cites
- 4451US2009084144A1Method and Apparatus for Securing a Watthour Meter BoxSTACHOWIAK JR JOHN EDWARD·Filed 2006·Application pending·0 cites
- 4550US10598699B2Securing apparatus and methodSTACHOWIAK JR JOHN EDWARD·Filed 2007·Granted Mar 24, 2020·1 cites·39 claims
- 4649US10443769B2Pivot jointWEATHERFORD TECH HOLDINGS LLC·Filed 2015·Granted Oct 15, 2019·0 cites·21 claims
- 4748US2014029169A1Securing Apparatus and SystemDEWALCH TECHNOLOGIES INC·Filed 2013·Application pending·0 cites
- 4848US2006254327A1Method and apparatus for securing a watthour meter boxSTACHOWIAK JOHN E JR·Filed 2006·Application pending·0 cites
- 4947US10907454B2Polished rod liner assemblyWEATHERFORD TECH HOLDINGS LLC·Filed 2019·Granted Feb 2, 2021·0 cites·21 claims
- 5046US12288185B2System and methods for managing oil and gas production equipmentOXY USA INC·Filed 2020·Granted Apr 29, 2025·0 cites·11 claims
Showing the top 50 of 61 patent records by PatentIndex Score.
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