Inventor · disambiguated record
Malcolm Perschke
Also filed as: PERSCHKE MALCOLM
9 granted patents·2 pending applications·45 citations·filing 2006–2023
81Inventor score
Technology areasE21B
Top patents by PatentIndex Score
11 records- 0192US11530592B2Wellhead lubricator and methods of operating sameHeshka Oil·Filed 2020·Granted Dec 20, 2022·7 cites·25 claims
- 0283US7762330B2Methods of making multiple casing cutsSMITH INTERNATIONAL·Filed 2008·Granted Jul 27, 2010·37 cites·20 claims
- 0373US10519743B2Downhole cement flowSCHLUMBERGER TECHNOLOGY CORP·Filed 2019·Granted Dec 31, 2019·1 cites·18 claims
- 0460US12435598B2Valves for well systems and methods of operating sameHeshka Oil·Filed 2023·Granted Oct 7, 2025·0 cites·27 claims
- 0560US10689946B2Downhole cement flowSCHLUMBERGER TECHNOLOGY CORP·Filed 2019·Granted Jun 23, 2020·0 cites·19 claims
- 0655US12460506B2Valves for well systems and methods of operating sameHeshka Oil·Filed 2023·Granted Nov 4, 2025·0 cites·22 claims
- 0754US12209474B2Lubricator for a well system and methods of operating sameHeshka Oil·Filed 2023·Granted Jan 28, 2025·0 cites·24 claims
- 0852US10227843B2Downhole cement flowSCHLUMBERGER TECHNOLOGY CORP·Filed 2014·Granted Mar 12, 2019·0 cites·5 claims
- 0942US2016208586A1System and methodology for running casing strings through a conductor tubeSCHLUMBERGER TECHNOLOGY CORP·Filed 2014·Application pending·0 cites
- 1034US2008093076A1Milling system and method of millingSMITH INTERNATIONAL·Filed 2006·Application pending·0 cites
- 1130US8881817B2Cutting toolPERSCHKE MALCOLM·Filed 2010·Granted Nov 11, 2014·0 cites·20 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →