Inventor · disambiguated record
David Lundgreen
Also filed as: LUNDGREEN DAVID · LUNDGREEN DAVID F
28 granted patents·3 pending applications·345 citations·filing 2006–2023
96Inventor score
Files withHALL DAVID R18SCHLUMBERGER TECHNOLOGY CORP5PROGRESS MFG INC4PROGRESS MFG LLC3DEXTER AXLE COMPANY LLC1
Top patents by PatentIndex Score
31 records- 0198US7938203B1Downhole centrifugal drilling fluid separatorHALL DAVID R·Filed 2010·Granted May 10, 2011·16 cites·12 claims
- 0296US7426968B2Drill bit assembly with a probeHALL DAVID R·Filed 2006·Granted Sep 23, 2008·32 cites·22 claims
- 0396US7360610B2Drill bit assembly for directional drillingHALL DAVID R·Filed 2006·Granted Apr 22, 2008·77 cites·25 claims
- 0492US10196809B2Modular building component for floor and ceiling with rod-based dimensionsHALL DAVID R·Filed 2017·Granted Feb 5, 2019·15 cites·18 claims
- 0592US7506701B2Drill bit assembly for directional drillingHALL DAVID R·Filed 2008·Granted Mar 24, 2009·38 cites·20 claims
- 0692US7434634B1Downhole turbineHALL DAVID R·Filed 2007·Granted Oct 14, 2008·39 cites·18 claims
- 0783US10960719B2Apparatus and method for measuring force on weight distribution hitchesPROGRESS MFG INC·Filed 2018·Granted Mar 30, 2021·4 cites·29 claims
- 0883US7559379B2Downhole steeringHALL DAVID R·Filed 2007·Granted Jul 14, 2009·23 cites·19 claims
- 0982US7984772B1Downhole centrifugal drilling fluid separatorHALL DAVID R·Filed 2010·Granted Jul 26, 2011·3 cites·19 claims
- 1082US7451835B1Downhole turbineHALL DAVID R·Filed 2007·Granted Nov 18, 2008·19 cites·19 claims
- 1177US8140259B2Location device with a gravity measuring deviceHALL DAVID R·Filed 2010·Granted Mar 20, 2012·5 cites·8 claims
- 1271US7980332B1Downhole centrifugal drilling fluid separatorHALL DAVID R·Filed 2010·Granted Jul 19, 2011·1 cites·14 claims
- 1371US7866416B2Clutch for a jack elementSCHLUMBERGER TECHNOLOGY CORP·Filed 2007·Granted Jan 11, 2011·10 cites·39 claims
- 1469US12326355B2System and method for measuring weights of vehicles and trailersPROGRESS MFG LLC·Filed 2023·Granted Jun 10, 2025·0 cites·20 claims
- 1569US8499857B2Downhole jack assembly sensorHALL DAVID R·Filed 2009·Granted Aug 6, 2013·9 cites·21 claims
- 1669US8360174B2Lead the bit rotary steerable toolSCHLUMBERGER TECHNOLOGY CORP·Filed 2009·Granted Jan 29, 2013·10 cites·15 claims
- 1769US7900720B2Downhole drive shaft connectionSCHLUMBERGER TECHNOLOGY CORP·Filed 2007·Granted Mar 8, 2011·12 cites·17 claims
- 1868US8028768B2Displaceable plug in a tool string filterSCHLUMBERGER TECHNOLOGY CORP·Filed 2009·Granted Oct 4, 2011·9 cites·14 claims
- 1967US12442679B2System and method for measuring weights of vehicles and trailersPROGRESS MFG LLC·Filed 2022·Granted Oct 14, 2025·0 cites·32 claims
- 2066US8307919B2Clutch for a jack elementHALL DAVID R·Filed 2011·Granted Nov 13, 2012·2 cites·20 claims
- 2166US7650951B1Resettable actuator for downhole toolHALL DAVID R·Filed 2009·Granted Jan 26, 2010·7 cites·20 claims
- 2261US8522897B2Lead the bit rotary steerable toolHALL DAVID R·Filed 2009·Granted Sep 3, 2013·6 cites·17 claims
- 2360US7721826B2Downhole jack assembly sensorSCHLUMBERGER TECHNOLOGY CORP·Filed 2007·Granted May 25, 2010·5 cites·17 claims
- 2459US12227041B2Powered arm lifter system and method of automating weight distributionPROGRESS MFG INC·Filed 2022·Granted Feb 18, 2025·0 cites·33 claims
- 2558US12097731B2Automatic weight distribution system and method with continuous monitoringDEXTER AXLE COMPANY LLC·Filed 2022·Granted Sep 24, 2024·0 cites·26 claims
- 2655US7669663B1Resettable actuator for downhole toolHALL DAVID R·Filed 2009·Granted Mar 2, 2010·3 cites·17 claims
- 2752US11821781B2Apparatus and method for determining weight distributionPROGRESS MFG INC·Filed 2020·Granted Nov 21, 2023·0 cites·22 claims
- 2850US2025001817A1Single motion system for coupling a trailer hitchPROGRESS MFG LLC·Filed 2023·Application pending·0 cites
- 2949US2009012741A1Location Device with a Gravity Measuring DeviceHALL DAVID R·Filed 2007·Application pending·0 cites
- 3045US12415391B2System and method for attaching a trailer to a tow vehiclePROGRESS MFG INC·Filed 2019·Granted Sep 16, 2025·0 cites·26 claims
- 3145US2018298611A1Configurable Hydronic Structural PanelHALL DAVID R·Filed 2017·Application pending·0 cites
Join the waitlist — get patent alerts
Get an alert when David Lundgreen files or is granted a new patent.
We store only your email — no account needed. See our privacy policy.
Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →