RP

Ronald J. Petrus

General Motors: 4 patents #3,733 of 18,328Top 25%
Overall (All Time): #1,108,358 of 4,157,543Top 30%
4
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
11994085 Piston for use in internal combustion engines and method of making the piston Jared Matthew Satkowiak, Hsiao F. Wong, Kenneth E. Schroeder, Qigui Wang, Richard D. Ricchi 2024-05-28
11655776 Cylinder block casting slab core cast geometry for sawcut entrance enhancement Richard M. Nichols, III, Brian C. Leuenhagen, William A. Berry, Qigui Wang, James T. Singer 2023-05-23
11554413 Hybrid cam bore sand core with metal chills for cast aluminum block Qigui Wang, Richard M. Nichols, III, Brian C. Leuenhagen 2023-01-17
11530629 Method to attach copper alloy valve inserts to aluminum cylinder head Huaxin Li 2022-12-20