Inventor · disambiguated record
Darrell Johnson
Also filed as: JOHNSON DARRELL · JOHNSON DARRELL L · JOHNSON DARRELL N · JOHNSON III DARRELL
6 granted patents·3 pending applications·120 citations·filing 1990–2016
84Inventor score
Top patents by PatentIndex Score
9 records- 0182US5713133AMethods of preparing cemented metal carbide substrates for deposition of adherent diamond coatings and products made therefromVALENITE INC·Filed 1996·Granted Feb 3, 1998·40 cites·31 claims
- 0274US5560839AMethods of preparing cemented metal carbide substrates for deposition of adherent diamond coatings and products made therefromVALENITE INC·Filed 1994·Granted Oct 1, 1996·33 cites·70 claims
- 0356US6114847AConnectionless signal detection device for conductive cablesFiled 1995·Granted Sep 5, 2000·23 cites·4 claims
- 0452US5733582AApparatus for support of large shipping containers during foamingCON TEK MACHINE INC·Filed 1995·Granted Mar 31, 1998·18 cites·26 claims
- 0542US2007193836A1Method and brake disc with composite insert memberWALKER TERENCE B·Filed 2006·Application pending·0 cites
- 0641USD341601SMachine for foaming refrigerator cavitiesCON TEK MACHINE INC·Filed 1990·Granted Nov 23, 1993·5 cites·1 claims
- 0736US2017245545A1Filtering pipe smokeCHANCELLOR PTY INC·Filed 2016·Application pending·0 cites
- 0834US2005271876A1Method for producing carbon-carbon brake material with improved initial friction coefficient or 'bite'WALKER TERRENCE B·Filed 2004·Application pending·0 cites
- 0931US7278497B2Method for extracting coal bed methane with source fluid injectionWEATHERFORD LAMB·Filed 2004·Granted Oct 9, 2007·1 cites·55 claims
Join the waitlist — get patent alerts
Get an alert when Darrell Johnson 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 →