Inventor · disambiguated record
Greg L. Slaughter, Jr.
Also filed as: SLAUGHTER JR GREG L · SLAUGHTER JR GREG LOWELL
31 granted patents·1 pending application·87 citations·filing 2013–2025
95Inventor score
Files withCHARLES MACHINE WORKS32
Top patents by PatentIndex Score
32 records- 0197US9206851B2Horizontal directional drill pipe drive connection with locking featureCHARLES MACHINE WORKS·Filed 2013·Granted Dec 8, 2015·34 cites·18 claims
- 0294US11851956B2Dual rod assembly and collar installation methodCHARLES MACHINE WORKS·Filed 2022·Granted Dec 26, 2023·2 cites·23 claims
- 0394US11536094B2Dual rod assembly and collar installation methodCHARLES MACHINE WORKS·Filed 2020·Granted Dec 27, 2022·3 cites·17 claims
- 0494US9803433B2Dual member pipe joint for a dual member drill stringCHARLES MACHINE WORKS·Filed 2015·Granted Oct 31, 2017·9 cites·47 claims
- 0591US10161199B2Dual member pipe joint for a dual member drill stringCHARLES MACHINE WORKS·Filed 2017·Granted Dec 25, 2018·5 cites·18 claims
- 0690US9765574B2Dual-member pipe joint for a dual-member drill stringCHARLES MACHINE WORKS·Filed 2013·Granted Sep 19, 2017·13 cites·23 claims
- 0787US10487595B2Collar with stepped retaining ring grooveCHARLES MACHINE WORKS·Filed 2017·Granted Nov 26, 2019·3 cites·16 claims
- 0886US11085239B2Sealing system for downhole toolCHARLES MACHINE WORKS·Filed 2019·Granted Aug 10, 2021·3 cites·12 claims
- 0984US9834995B2Horizontal directional drill pipe drive connection with locking featureCHARLES MACHINE WORKS·Filed 2015·Granted Dec 5, 2017·4 cites·35 claims
- 1081US11208851B2Dual pipe drill head quick interchange jointCHARLES MACHINE WORKS·Filed 2019·Granted Dec 28, 2021·2 cites·22 claims
- 1178US12270263B2Dual rod assembly and collar installation methodCHARLES MACHINE WORKS·Filed 2023·Granted Apr 8, 2025·0 cites·18 claims
- 1277US2025257650A1Fretting-wear resistant beacon lidCHARLES MACHINE WORKS·Filed 2025·Application pending·0 cites
- 1376US12055014B2Sealing system for downhole toolCHARLES MACHINE WORKS·Filed 2023·Granted Aug 6, 2024·0 cites·19 claims
- 1475US9611695B2Dual pipe drilling head with improved bearing retention structureCHARLES MACHINE WORKS·Filed 2014·Granted Apr 4, 2017·5 cites·26 claims
- 1572US12286843B2Dual pipe drill head quick interchange jointCHARLES MACHINE WORKS·Filed 2023·Granted Apr 29, 2025·0 cites·15 claims
- 1672US11053756B2Torque-dependent oscillation of a dual-pipe inner pipe sectionCHARLES MACHINE WORKS·Filed 2019·Granted Jul 6, 2021·2 cites·23 claims
- 1772US10036205B2Stacked-plate reamerCHARLES MACHINE WORKS·Filed 2016·Granted Jul 31, 2018·2 cites·22 claims
- 1871US12312944B2Fretting-wear resistant beacon lidCHARLES MACHINE WORKS·Filed 2023·Granted May 27, 2025·0 cites·16 claims
- 1969US11661796B2Sealing system for downhole toolCHARLES MACHINE WORKS·Filed 2021·Granted May 30, 2023·0 cites·18 claims
- 2069US11578540B2Dual pipe drill head quick interchange jointCHARLES MACHINE WORKS·Filed 2021·Granted Feb 14, 2023·0 cites·22 claims
- 2168US11828176B2Dual-member pipe assemblyCHARLES MACHINE WORKS·Filed 2021·Granted Nov 28, 2023·0 cites·14 claims
- 2265US11753874B2Insert for use with dual-member pipe jointCHARLES MACHINE WORKS·Filed 2021·Granted Sep 12, 2023·0 cites·17 claims
- 2362US11015392B2Dual member pipe joint for a dual member drill stringCHARLES MACHINE WORKS·Filed 2018·Granted May 25, 2021·0 cites·16 claims
- 2461US11002076B2Dual-member pipe assemblyCHARLES MACHINE WORKS·Filed 2019·Granted May 11, 2021·0 cites·22 claims
- 2559US11053747B2Insert for use with dual-member pipe jointCHARLES MACHINE WORKS·Filed 2018·Granted Jul 6, 2021·0 cites·20 claims
- 2659US10851599B2Horizontal directional drill pipe drive connection with locking featureCHARLES MACHINE WORKS·Filed 2017·Granted Dec 1, 2020·0 cites·24 claims
- 2755US10760354B2Collar with stepped retaining ring grooveCHARLES MACHINE WORKS·Filed 2019·Granted Sep 1, 2020·0 cites·19 claims
- 2854US10260287B2Dual-member pipe assemblyCHARLES MACHINE WORKS·Filed 2016·Granted Apr 16, 2019·0 cites·31 claims
- 2953US10538969B2Stacked-plate reamerCHARLES MACHINE WORKS·Filed 2018·Granted Jan 21, 2020·0 cites·25 claims
- 3051US10808461B2Angular offset drilling toolCHARLES MACHINE WORKS·Filed 2017·Granted Oct 20, 2020·0 cites·16 claims
- 3149US11613942B2Torque-dependent oscillation of a dual-pipe inner sectionCHARLES MACHINE WORKS·Filed 2021·Granted Mar 28, 2023·0 cites·21 claims
- 3248US11885223B2Method to prevent dual rod drill string dragCHARLES MACHINE WORKS·Filed 2020·Granted Jan 30, 2024·0 cites·20 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →