Inventor · disambiguated record
Brian C. Witkowski
Also filed as: WITKOWSKI BRIAN · WITKOWSKI BRIAN C · WITKOWSKI BRIAN CHRISTOPHER
34 granted patents·7 pending applications·743 citations·filing 2008–2025
98Inventor score
Top patents by PatentIndex Score
41 records- 0198US11149514B2Hydraulic fracturing system, apparatus, and methodSPM FLOW CONTROL INC·Filed 2019·Granted Oct 19, 2021·29 cites·16 claims
- 0298US10808488B2Hydraulic fracturing system, apparatus, and methodSPM FLOW CONTROL INC·Filed 2019·Granted Oct 20, 2020·31 cites·19 claims
- 0398US10753490B2Clapper valveSPM FLOW CONTROL INC·Filed 2018·Granted Aug 25, 2020·33 cites·20 claims
- 0498US10526862B2Hydraulic fracturing system, apparatus, and methodSPM FLOW CONTROL INC·Filed 2017·Granted Jan 7, 2020·57 cites·7 claims
- 0598US10197172B2Clapper valveSPM FLOW CONTROL INC·Filed 2017·Granted Feb 5, 2019·33 cites·40 claims
- 0697US9857807B2Automated relief valve control system and methodSPM FLOW CONTROL INC·Filed 2016·Granted Jan 2, 2018·34 cites·21 claims
- 0797US9273543B2Automated relief valve control system and methodSPM FLOW CONTROL INC·Filed 2013·Granted Mar 1, 2016·47 cites·30 claims
- 0897US9103448B2Plug valve having preloaded seal segmentsSPM FLOW CONTROL INC·Filed 2013·Granted Aug 11, 2015·57 cites·31 claims
- 0997US8261771B2Flowline flapper valveWITKOWSKI BRIAN C·Filed 2010·Granted Sep 11, 2012·65 cites·18 claims
- 1096US9638337B2Plug valve having preloaded seal segmentsSPM FLOW CONTROL INC·Filed 2015·Granted May 2, 2017·36 cites·23 claims
- 1196US9322243B2Automated relief valve control system and methodSPM FLOW CONTROL INC·Filed 2013·Granted Apr 26, 2016·46 cites·54 claims
- 1296US8998168B2Plug valve indicatorSPM FLOW CONTROL INC·Filed 2013·Granted Apr 7, 2015·19 cites·12 claims
- 1395US8978695B2Flowline flapper valveWITKOWSKI BRIAN·Filed 2012·Granted Mar 17, 2015·47 cites·22 claims
- 1495US8465001B2Plug valve indicatorWITKOWSKI BRIAN C·Filed 2010·Granted Jun 18, 2013·22 cites·12 claims
- 1594US10557576B2Full-root-radius-threaded wing nut having increased wall thicknessSPM FLOW CONTROL INC·Filed 2016·Granted Feb 11, 2020·32 cites·7 claims
- 1690US8870233B2Swivel joint with uniform ball bearing requirementsMATZNER MARK D·Filed 2008·Granted Oct 28, 2014·15 cites·1 claims
- 1787US11512781B2Clapper check valve with a valve seat seal memberSPM OIL & GAS INC·Filed 2019·Granted Nov 29, 2022·3 cites·20 claims
- 1883US11530591B2Large bore plug valveSPM OIL & GAS INC·Filed 2020·Granted Dec 20, 2022·1 cites·19 claims
- 1983USD703294SSeal side segmentWITKOWSKI BRIAN·Filed 2012·Granted Apr 22, 2014·31 cites·1 claims
- 2081US11365819B2Clapper valveSPM OIL & GAS INC·Filed 2020·Granted Jun 21, 2022·1 cites·21 claims
- 2181US2025257811A1Stabilized check valveSPM OIL & GAS INC·Filed 2025·Application pending·0 cites
- 2279USD707332SSeal assemblySPM FLOW CONTROL INC·Filed 2013·Granted Jun 17, 2014·21 cites·1 claims
- 2378US12320434B2Stabilized check valveSPM OIL & GAS INC·Filed 2023·Granted Jun 3, 2025·0 cites·20 claims
- 2478USD734434SSeal assemblySPM FLOW CONTROL INC·Filed 2014·Granted Jul 14, 2015·19 cites·1 claims
- 2578USD651592SRFID holderHUNTER SCOTT·Filed 2011·Granted Jan 3, 2012·24 cites·1 claims
- 2673US11421504B2Hydraulic fracturing system, apparatus, and methodSPM OIL & GAS INC·Filed 2020·Granted Aug 23, 2022·0 cites·21 claims
- 2771US2023116368A1Clapper check valve with a valve seat seal memberSPM OIL & GAS INC·Filed 2022·Application pending·0 cites
- 2867US12410869B2Two-pin clapper check valveSPM OIL & GAS INC·Filed 2023·Granted Sep 9, 2025·0 cites·18 claims
- 2966USD713825SElectronic device holderWITKOWSKI BRIAN·Filed 2012·Granted Sep 23, 2014·13 cites·1 claims
- 3063US11149885B2Carburizing grade micro-alloy high pressure swivel jointsSPM FLOW CONTROL INC·Filed 2018·Granted Oct 19, 2021·1 cites·12 claims
- 3163USD651593SRFID holderHUNTER SCOTT·Filed 2011·Granted Jan 3, 2012·13 cites·1 claims
- 3263USD651591SCombination RFID holder and RFID tagHUNTER SCOTT·Filed 2011·Granted Jan 3, 2012·13 cites·1 claims
- 3357US11519530B2Full-root-radius-threaded wing nut having increased wall thicknessSPM OIL & GAS INC·Filed 2019·Granted Dec 6, 2022·0 cites·20 claims
- 3456US9964245B2Swivel joint with uniform ball bearing requirementsSPM FLOW CONTROL INC·Filed 2014·Granted May 8, 2018·0 cites·20 claims
- 3548US12222054B2Swivel assembly formed of a corrosion-resistant materialSPM OIL & GAS INC·Filed 2022·Granted Feb 11, 2025·0 cites·15 claims
- 3642US2022341305A1Systems and methods for cathodic protection of hydraulic fracturing pump systemsSPM OIL & GAS INC·Filed 2020·Application pending·0 cites
- 3741US2017108153A1Lateral fitting including offset parting planeSPM FLOW CONTROL INC·Filed 2016·Application pending·0 cites
- 3840US2010147866A1Ball InjectorWEIR SPM INC·Filed 2009·Application pending·0 cites
- 3939US2018073308A1Large bore assembly and spherical swivel jointSEABOARD INT INC·Filed 2017·Application pending·0 cites
- 4036US2013037125A1Pressure relief valve assemblySPM FLOW CONTROL INC·Filed 2012·Application pending·0 cites
- 4129USD774495SElectronic device holderSPM FLOW CONTROL INC·Filed 2014·Granted Dec 20, 2016·0 cites·1 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →