Inventor · disambiguated record
David E. Johnson
Also filed as: JOHNSON DAVID · JOHNSON DAVID E · JOHNSON DAVID EUGENE
5 granted patents·175 citations·filing 1982–2011
83Inventor score
Top patents by PatentIndex Score
5 records- 0193US4514692AMetal detector and discriminator using differentiation for background signal suppressionFRL INC·Filed 1982·Granted Apr 30, 1985·72 cites·12 claims
- 0287US4628265AMetal detector and classifier with automatic compensation for soil magnetic minerals and sensor misalignmentFRL INC·Filed 1983·Granted Dec 9, 1986·52 cites·13 claims
- 0386US7938075B1Automated seed detection and planting synchronization apparatus, method and systemPIONEER HI BRED INT·Filed 2009·Granted May 10, 2011·35 cites·36 claims
- 0470US7116760B2System and method for single-ended line analysis for qualification and mappingACTERNA L L C·Filed 2000·Granted Oct 3, 2006·15 cites·16 claims
- 0543US8878537B1Method and apparatus to minimize gradient errors in buried utility depth measurementsJOHNSON DAVID EUGENE·Filed 2011·Granted Nov 4, 2014·1 cites·20 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →