Inventor · disambiguated record
Robert D. Wronkiewicz
Also filed as: WRONKIEWICZ ROBERT D
9 granted patents·372 citations·filing 1989–2000
91Inventor score
Technology areasB61F
Top patents by PatentIndex Score
9 records- 0190US4953471AFriction shoe assembly for repair of worn railway truckAMSTED IND INC·Filed 1989·Granted Sep 4, 1990·62 cites·12 claims
- 0289US6425334B1Friction shoe for freight car truckAMSTED IND INC·Filed 2000·Granted Jul 30, 2002·68 cites·7 claims
- 0389US5111753ALight weight fatigue resistant railcar truck bolsterAMSTED IND INC·Filed 1990·Granted May 12, 1992·77 cites·5 claims
- 0480US5452665ABolster friction shoe pocket with relieved outer wallAMSTED IND INC·Filed 1994·Granted Sep 26, 1995·51 cites·4 claims
- 0574US5749301AMulti-rate vertical load support for an outboard bearing railway truckAMSTED IND INC·Filed 1996·Granted May 12, 1998·45 cites·14 claims
- 0667US5718177ARailway truck sideframe with internal ribs in bottom memberAMSTED IND INC·Filed 1997·Granted Feb 17, 1998·29 cites·10 claims
- 0761US5305694ASideframe with increased fatigue life having longer cross-sectional thickness transition zoneAMSTED IND INC·Filed 1993·Granted Apr 26, 1994·23 cites·3 claims
- 0843US5791258ARailway truck with elastometric suspensionAMSTED IND INC·Filed 1997·Granted Aug 11, 1998·10 cites·6 claims
- 0932US5224428AStrengthened structure for a steering arm assembly having a compound radial fillet at junctureWRONKIEWICZ ROBERT D·Filed 1991·Granted Jul 6, 1993·7 cites·4 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →