Inventor · disambiguated record
Marvin Allen Gregory
Also filed as: GREGORY MARVIN · GREGORY MARVIN A · GREGORY MARVIN ALLEN
11 granted patents·3 pending applications·221 citations·filing 2000–2016
88Inventor score
Technology areasE21B
Top patents by PatentIndex Score
14 records- 0190US6386300B1Formation cutting method and systemCURLETT FAMILY LTD PARTNERSHIP·Filed 2000·Granted May 14, 2002·112 cites·103 claims
- 0286US6581700B2Formation cutting method and systemCURLETT FAMILY LTD PARTNERSHIP·Filed 2002·Granted Jun 24, 2003·81 cites·96 claims
- 0376US9394777B2Pressure controlled multi-shift frac sleeve systemCNPC USA CORP·Filed 2013·Granted Jul 19, 2016·5 cites·20 claims
- 0463US7059429B2Drilling assembly and methodSTRATALOC TECHNOLOGY PRODUCTS·Filed 2004·Granted Jun 13, 2006·19 cites·45 claims
- 0562US9121225B2Drill bit housing vibrator and methodCNPC USA CORP·Filed 2012·Granted Sep 1, 2015·2 cites·7 claims
- 0655US9121254B2Millable bridge plug systemCNPC USA CORP·Filed 2012·Granted Sep 1, 2015·1 cites·9 claims
- 0755US9121253B2Millable bridge plug systemCNPC USA CORP·Filed 2012·Granted Sep 1, 2015·1 cites·18 claims
- 0842US9121224B2Vibrational tool with tool axis rotational mass and methodCNPC USA CORP·Filed 2012·Granted Sep 1, 2015·0 cites·13 claims
- 0942US2015136403A1Ball seat systemCNPC USA CORP·Filed 2013·Application pending·0 cites
- 1040US9033067B2Vibrational tool with rotating engagement surfaces and methodCNPC USA CORP·Filed 2012·Granted May 19, 2015·0 cites·17 claims
- 1140US2014174738A1Millable bridge plug systemCNPC USA CORP·Filed 2012·Application pending·0 cites
- 1239US10605042B2Short millable plug for hydraulic fracturing operationsCNPC USA CORP·Filed 2016·Granted Mar 31, 2020·0 cites·20 claims
- 1335US10415345B2Millable bridge plug systemCNPC USA CORP·Filed 2016·Granted Sep 17, 2019·0 cites·10 claims
- 1434US2018171749A1Millable bridge plug systemCNPC USA CORP·Filed 2016·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →