Inventor · disambiguated record
John D. Oliver
Also filed as: OLIVER JOHN · OLIVER JOHN D
7 granted patents·150 citations·filing 1993–2023
85Inventor score
Files withAMSTED IND INC2OLIVER JOHN R2AMSTED RAIL CO INC1LUDOWICI MINERAL PROC EQUIPMEN1TRN BUSINESS TRUST1
Top patents by PatentIndex Score
7 records- 0188US6371033B1High capacity integrated railway car truckTRN BUSINESS TRUST·Filed 1999·Granted Apr 16, 2002·72 cites·20 claims
- 0285US8596126B2Method and apparatus for a railway wheel ultrasonic testing apparatusOLIVER JOHN R·Filed 2011·Granted Dec 3, 2013·8 cites·12 claims
- 0374US6830155B2Vibratory screening apparatusLUDOWICI MINERAL PROC EQUIPMEN·Filed 2002·Granted Dec 14, 2004·23 cites·55 claims
- 0470US12145224B2System and method of forming a wear surface for a wheel of a rail vehicleAMSTED RAIL CO INC·Filed 2023·Granted Nov 19, 2024·0 cites·20 claims
- 0565US5574233ANon-contact railway wheel test apparatus and methodAMSTED IND INC·Filed 1994·Granted Nov 12, 1996·28 cites·3 claims
- 0664US8596125B2Railway wheel ultrasonic testing apparatusOLIVER JOHN R·Filed 2011·Granted Dec 3, 2013·2 cites·20 claims
- 0749US5333926ARailway wheelAMSTED IND INC·Filed 1993·Granted Aug 2, 1994·17 cites·14 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →