Inventor · disambiguated record
John F. Bradford
Also filed as: BRADFORD III JOHN F · BRADFORD III JOHN FRANCIS · BRADFORD JOHN F
15 granted patents·3 pending applications·148 citations·filing 2007–2024
92Inventor score
Top patents by PatentIndex Score
18 records- 0194US8087479B2Drill bit with an adjustable steering deviceKULKARNI AJAY V·Filed 2009·Granted Jan 3, 2012·64 cites·17 claims
- 0293US8950514B2Drill bits with anti-tracking featuresBUSKE ROBERT J·Filed 2011·Granted Feb 10, 2015·20 cites·34 claims
- 0393US8240399B2Drill bit with an adjustable steering deviceKULKARNI AJAY V·Filed 2011·Granted Aug 14, 2012·22 cites·18 claims
- 0488US9353575B2Hybrid drill bits having increased drilling efficiencyBAKER HUGHES INC·Filed 2012·Granted May 31, 2016·9 cites·22 claims
- 0583US10190366B2Hybrid drill bits having increased drilling efficiencyBAKER HUGHES INC·Filed 2016·Granted Jan 29, 2019·3 cites·20 claims
- 0682US8834026B2Bearings for downhole tools, downhole tools incorporating such bearings, and methods of cooling such bearingsFLORES ALEJANDRO·Filed 2011·Granted Sep 16, 2014·7 cites·13 claims
- 0780US10954722B2Fixed cutter drill bits including nozzles with end and side exitsNAT OILWELL DHT LP·Filed 2017·Granted Mar 23, 2021·3 cites·25 claims
- 0878US10072462B2Hybrid drill bitsBAKER HUGHES INC·Filed 2016·Granted Sep 11, 2018·2 cites·18 claims
- 0973US9657527B2Drill bits with anti-tracking featuresBAKER HUGHES INC·Filed 2014·Granted May 23, 2017·3 cites·34 claims
- 1073US7484577B2Bit leg outer surface hardfacing on earth-boring bitBAKER HUGHES INC·Filed 2007·Granted Feb 3, 2009·12 cites·19 claims
- 1162US9782857B2Hybrid drill bit having increased service lifeBAKER HUGHES INC·Filed 2015·Granted Oct 10, 2017·1 cites·21 claims
- 1261US9290997B2Downhole tools including bearings and methods of forming sameBAKER HUGHES INC·Filed 2014·Granted Mar 22, 2016·1 cites·18 claims
- 1360US7905301B2Earth boring drill bits made from a low-carbon, high-molybdenum alloyBAKER HUGHES INC·Filed 2008·Granted Mar 15, 2011·0 cites·10 claims
- 1459US11377911B2Fixed cutter drill bits including nozzles with end and side exitsNAT OILWELL DHT LP·Filed 2021·Granted Jul 5, 2022·0 cites·18 claims
- 1555US2025018470A1Fixed cutter drill bits and methods of making sameNAT OILWELL VARCO LP·Filed 2024·Application pending·0 cites
- 1647US7823664B2Corrosion protection for head section of earth boring bitBAKER HUGHES INC·Filed 2008·Granted Nov 2, 2010·1 cites·21 claims
- 1746US2010329081A1Method for non-destructively evaluating rotary earth boring drill components and determining fitness-for-use of the sameSULLIVAN ERIC·Filed 2009·Application pending·0 cites
- 1838US2011290560A1Early wear detectionBUSKE ROBERT J·Filed 2010·Application pending·0 cites
Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →