Andrew P. Perr
17Patents
5h-index
27Co-inventors
66Inventor score
Filing activity: Mar 18, 1997 → Aug 7, 2024
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US8146574B2 | Engine air management system | Emerging Cross-Sectional Technologies | 15 | Active |
| US6328001A | Replaceable cylinder liner with improved cooling | Emerging Cross-Sectional Technologies | 15 | Expired |
| US6116198A | Replaceable cylinder liner with improved cooling | Emerging Cross-Sectional Technologies | 13 | Expired |
| US7240643B1 | Piston cooling nozzle and positioning method for an internal combustion engine | Mechanical Engineering; Lighting; Heating | 8 | Expired |
| US8342160B2 | Engine air management system | Emerging Cross-Sectional Technologies | 6 | Active |
| US8616188B2 | Engine air management system | Emerging Cross-Sectional Technologies | 5 | Active |
| US5806499A | Dedicated overhead cam shaft for unit injector | Mechanical Engineering; Lighting; Heating | 5 | Expired |
| US5975060A | Dedicated overhead cam shaft for unit injector | Mechanical Engineering; Lighting; Heating | 3 | Expired |
| US10494981B2 | Combustion pre-chamber device for an internal combustion engine | Emerging Cross-Sectional Technologies | 2 | Active |
| US10989136B2 | Parent bore cylinder block of an opposed-piston engine | Emerging Cross-Sectional Technologies | 1 | Active |
| US10619550B2 | Main bearing cap stud configuration and assembly method | Mechanical Engineering; Lighting; Heating | 1 | Active |
| US9556778B2 | Waste heat recovery system including a clutched feedpump | Emerging Cross-Sectional Technologies | 0 | Active |
| US11441512B2 | Engine cooling system including cooled exhaust seats | Mechanical Engineering; Lighting; Heating | 0 | Active |
| US12286940B2 | Parent bore cylinder block of an opposed-piston engine | Emerging Cross-Sectional Technologies | 0 | Active |
| US11725605B2 | Cylinder head bolt boss cutouts | Mechanical Engineering; Lighting; Heating | 0 | Active |
| US11008973B2 | Engine cooling system including cooled exhaust seats | Mechanical Engineering; Lighting; Heating | 0 | Active |
| US11326569B2 | Fuel injector mounting assembly for an opposed-piston engine | Mechanical Engineering; Lighting; Heating | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.