Inventor · disambiguated record
Frank M. Graczyk
Also filed as: GRACZYK FRANK M · GRACZYK FRANK MATTHEW
6 granted patents·3 pending applications·60 citations·filing 2002–2025
81Inventor score
Files withELECTRO MOTIVE DIESEL INC3DELTAHAWK ENGINES INC2GEN MOTORS CORP1GRACZYK FRANK MATTHEW1HEILENBACH JAMES W1
Top patents by PatentIndex Score
9 records- 0175US10359112B2Piston ring set for internal combustion engine and system and method thereofPROGRESS RAIL LOCOMOTIVE INC·Filed 2016·Granted Jul 23, 2019·1 cites·18 claims
- 0275US7311086B2Low emission fuel efficient diesel locomotive engine including a piston having a toroidal surfaceELECTRO MOTIVE DIESEL INC·Filed 2006·Granted Dec 25, 2007·11 cites·1 claims
- 0374US12292013B2Piston assembly with gapless oil control ringDELTAHAWK ENGINES INC·Filed 2023·Granted May 6, 2025·0 cites·20 claims
- 0470US2025230780A1Piston Assembly with Gapless Oil Control RingDELTAHAWK ENGINES INC·Filed 2025·Application pending·0 cites
- 0568US7370627B2Optimized low emission two-stroke internal combustion diesel engineELECTRO MOTIVE DIESEL INC·Filed 2004·Granted May 13, 2008·26 cites·17 claims
- 0668US7025031B2Low emission fuel efficient diesel locomotive engine including a piston having a toroidal surfaceELECTRO MOTIVE DIESEL INC·Filed 2002·Granted Apr 11, 2006·14 cites·2 claims
- 0754US6866028B2Emission reduction kit for EMD diesel enginesGEN MOTORS CORP·Filed 2003·Granted Mar 15, 2005·8 cites·8 claims
- 0843US2014000549A1Compression ring for an engineGRACZYK FRANK MATTHEW·Filed 2012·Application pending·0 cites
- 0942US2011023854A1Piston arrangement for a two-stroke locomotive diesel engine having an egr systemHEILENBACH JAMES W·Filed 2010·Application pending·0 cites
Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →