Richard E. Eckman
19Patents
14h-index
3Co-inventors
67Inventor score
Filing activity: Oct 25, 1977 → May 20, 1993
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4688970A | Power drill and automatic control system therefore | Emerging Cross-Sectional Technologies | 74 | Expired |
| US5022798A | Thrust-responsive two-speed drill and method of operation | Emerging Cross-Sectional Technologies | 51 | Expired |
| US4174113A | Bit retainer for pneumatic tools | Emerging Cross-Sectional Technologies | 31 | Expired |
| US4591299A | Rapid feed apparatus for automatic feed drills or the like | Emerging Cross-Sectional Technologies | 29 | Expired |
| US4592681A | Retraction apparatus for automatic feed drills or the like | Emerging Cross-Sectional Technologies | 26 | Expired |
| US5054968A | Mechanical positive feed drill with supported spindle | Emerging Cross-Sectional Technologies | 26 | Expired |
| US4154308A | Low torque automatic screwdriver | Performing Operations; Transporting | 21 | Expired |
| US4681490A | Retraction apparatus for automatic feed drills or the like | Emerging Cross-Sectional Technologies | 20 | Expired |
| US4631992A | Screwdriver | Performing Operations; Transporting | 19 | Expired |
| US4631012A | Pneumatic tools | Performing Operations; Transporting | 19 | Expired |
| US4258799A | Inlet control valve | Emerging Cross-Sectional Technologies | 17 | Expired |
| US5149232A | Mechanical peck drill | Emerging Cross-Sectional Technologies | 16 | Expired |
| US4702650A | Positive feed drill use counter | Emerging Cross-Sectional Technologies | 15 | Expired |
| US5062745A | Mechanical peck drill and method | Emerging Cross-Sectional Technologies | 14 | Expired |
| US5295770A | Air feed peck drill with pneumatic safety system | Emerging Cross-Sectional Technologies | 14 | Expired |
| US5205681A | Mechanical peck drill and method | Emerging Cross-Sectional Technologies | 11 | Expired |
| US5328302A | Air feed peck drill | Emerging Cross-Sectional Technologies | 8 | Expired |
| USD290220S | Power tool reaction brace | General | 6 | Expired |
| US4495681A | Dwell and depth attachment for power drills | Emerging Cross-Sectional Technologies | 2 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.