Inventor · disambiguated record
Ronald J. Petrus
Also filed as: PETRUS RONALD J · PETRUS RONALD JOHN
4 granted patents·3 pending applications·1 citations·filing 2015–2022
55Inventor score
Files withGM GLOBAL TECH OPERATIONS LLC7
Top patents by PatentIndex Score
7 records- 0181US11655776B1Cylinder block casting slab core cast geometry for sawcut entrance enhancementGM GLOBAL TECH OPERATIONS LLC·Filed 2022·Granted May 23, 2023·1 cites·16 claims
- 0257US11554413B2Hybrid cam bore sand core with metal chills for cast aluminum blockGM GLOBAL TECH OPERATIONS LLC·Filed 2021·Granted Jan 17, 2023·0 cites·20 claims
- 0350US11530629B2Method to attach copper alloy valve inserts to aluminum cylinder headGM GLOBAL TECH OPERATIONS LLC·Filed 2020·Granted Dec 20, 2022·0 cites·10 claims
- 0446US11994085B2Piston for use in internal combustion engines and method of making the pistonGM GLOBAL TECH OPERATIONS LLC·Filed 2022·Granted May 28, 2024·0 cites·20 claims
- 0543US2019085786A1Aluminum cylinder block assemblies and methods of making the sameGM GLOBAL TECH OPERATIONS LLC·Filed 2017·Application pending·0 cites
- 0638US2016356242A1TiO2 APPLICATION AS BONDCOAT FOR CYLINDER BORE THERMAL SPRAYGM GLOBAL TECH OPERATIONS LLC·Filed 2015·Application pending·0 cites
- 0737US2018023703A1Piston ring and manufacturing methodGM GLOBAL TECH OPERATIONS LLC·Filed 2016·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →