Thomas J. Heyden
23Patents
5h-index
22Co-inventors
69Inventor score
Filing activity: Nov 1, 1999 → Apr 19, 2022
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6422155B1 | Rail car truck pedestal shear pad | Performing Operations; Transporting | 58 | Expired |
| US7392887B2 | Bladder actuator for a railroad retarder | Performing Operations; Transporting | 10 | Active |
| US7306077B2 | Fail-safe, weight-responsive skate retarder | Performing Operations; Transporting | 10 | Expired |
| US7325567B2 | Pneumatic retarder acutator valve | Emerging Cross-Sectional Technologies | 10 | Expired |
| USD918656S1 | Pusher | General | 5 | Active |
| USD841409S1 | Juicing machine | General | 5 | Active |
| US6357360B1 | Frame brace and center clamp | Performing Operations; Transporting | 4 | Expired |
| US7649350B2 | Railcar presence detector | Performing Operations; Transporting | 4 | Active |
| US8413770B1 | Systems and methods for retarding the speed of a railcar | Performing Operations; Transporting | 4 | Active |
| USD914464S1 | Press box | General | 4 | Active |
| US8079309B2 | Devices and systems for controlling travel of a railcar | Performing Operations; Transporting | 4 | Active |
| USD915156S1 | Press box | General | 4 | Active |
| USD840770S1 | Hopper and pressing chamber for a juicing machine | General | 4 | Active |
| US11344052B2 | Partial or whole food hopper, grinder and cold press counter-top juicing machine, system and method | Human Necessities | 3 | Active |
| US8485107B2 | Devices and systems for controlling travel of a railcar | Performing Operations; Transporting | 3 | Active |
| US8365876B2 | Air bladder actuator for railroad car retarder | Emerging Cross-Sectional Technologies | 3 | Active |
| US7530432B2 | Bladder-actuated railroad retarder | Mechanical Engineering; Lighting; Heating | 3 | Active |
| US8499900B1 | Electro-hydraulic railcar retarders for controlling the speed of a railcar | Performing Operations; Transporting | 3 | Active |
| US10207722B2 | Automated machining and welding of railway car parts | Emerging Cross-Sectional Technologies | 2 | Active |
| US8485105B2 | Devices and systems for stopping travel of a railcar | Performing Operations; Transporting | 2 | Active |
| US11910819B2 | Partial or whole food hopper, grinder and cold press counter-top juicing machine, system and method | Human Necessities | 0 | Active |
| US9956968B2 | Bearing adapter side frame interface for a railway car truck | Performing Operations; Transporting | 0 | Active |
| US11844466B2 | Juicing devices with a removable grinder | Human Necessities | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.