Peter Paul Gregar
20Patents
4h-index
8Co-inventors
52Inventor score
Filing activity: Aug 11, 2009 → Jan 26, 2021
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US7802524B1 | Constant contact side bearing assembly with improved cap machining for a railcar | Performing Operations; Transporting | 11 | Active |
| US8672151B2 | Elastomeric draft gear for a railcar | Emerging Cross-Sectional Technologies | 6 | Active |
| US8616341B2 | Device and method for sensing applied condition of a railroad handbrake | Performing Operations; Transporting | 5 | Active |
| US8556044B2 | Railway truck mounted brake rigging having raised connection of force-transmitting member with transfer lever | Performing Operations; Transporting | 4 | Active |
| US8584551B2 | Railroad handbrake chain tension condition sensing device and method | Emerging Cross-Sectional Technologies | 3 | Active |
| US9540021B2 | Slack adjuster contaminant mitigation device | Mechanical Engineering; Lighting; Heating | 3 | Active |
| US9676401B2 | Slack adjuster contaminant sump, drain, and overload relief | Mechanical Engineering; Lighting; Heating | 2 | Active |
| US9562582B2 | Compressible elastomeric spring | Emerging Cross-Sectional Technologies | 2 | Active |
| US8869954B2 | Lubricating insert for railroad brake head assembly | Emerging Cross-Sectional Technologies | 2 | Active |
| US10562550B2 | Slack adjuster for a brake system with increased take-up capacity | Mechanical Engineering; Lighting; Heating | 2 | Active |
| US9517753B2 | Manual brake release mechanism for rail vehicles | Emerging Cross-Sectional Technologies | 1 | Active |
| US9834232B2 | Vented draining slack adjuster end cap | Mechanical Engineering; Lighting; Heating | 1 | Active |
| US11536337B2 | Slack adjuster for a brake system | Mechanical Engineering; Lighting; Heating | 0 | Active |
| US10232865B2 | Truck mounted brake system for rod-under style bolsters | Mechanical Engineering; Lighting; Heating | 0 | Active |
| US9200994B2 | Device and method for sensing applied condition of a railroad handbrake | Performing Operations; Transporting | 0 | Active |
| US11401991B2 | Slack adjuster main spring housing contaminant sump | Mechanical Engineering; Lighting; Heating | 0 | Active |
| US10948038B2 | Slack adjuster main spring housing contaminant sump | Mechanical Engineering; Lighting; Heating | 0 | Active |
| US10330162B2 | Slack adjuster main spring housing contaminant sump | Mechanical Engineering; Lighting; Heating | 0 | Active |
| US10059314B2 | Bail compensation joint for rail vehicles | Emerging Cross-Sectional Technologies | 0 | Active |
| US9481382B2 | Handbrake with a double-sided gear box | Emerging Cross-Sectional Technologies | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.