Inventor · disambiguated record
John J. Hannaford
Also filed as: HANNAFORD JOHN J
3 granted patents·129 citations·filing 1985–1997
74Inventor score
Files withNAT RAILROAD PASSENGER CORP3
Top patents by PatentIndex Score
3 records- 0190US6052884AConveyorized system for rebuilding tread and disc brake actuator units for use in railway carsNAT RAILROAD PASSENGER CORP·Filed 1997·Granted Apr 25, 2000·95 cites·13 claims
- 0266US5936153AApparatus and method for testing brake actuator units used in railroad carsNAT RAILROAD PASSENGER CORP·Filed 1997·Granted Aug 10, 1999·30 cites·23 claims
- 0331US4649971ACrosstie boring apparatusNAT RAILROAD PASSENGER CORP·Filed 1985·Granted Mar 17, 1987·4 cites·9 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →