Robert P. Callaway
9Patents
6h-index
14Co-inventors
60Inventor score
Filing activity: Feb 24, 1987 → Jul 31, 2018
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5898288A | Inexpensive motion control using DC motors | Physics | 26 | Expired |
| US5663624A | Closed-loop method and apparatus for controlling acceleration and velocity of a stepper motor | Electricity | 20 | Expired |
| US6017114A | Shifted element scanning/printing routine coordinated with media advance | Electricity | 18 | Expired |
| US6674260B1 | DC motor control | Emerging Cross-Sectional Technologies | 10 | Expired |
| US6485383B1 | Thermal compensation belt drive tensioner | Mechanical Engineering; Lighting; Heating | 9 | Expired |
| US6340221B1 | Ink jet print carriage drive system that applies drive force at location displaced from drive belt | Performing Operations; Transporting | 9 | Expired |
| US4759649A | Dual axis paper drive | Performing Operations; Transporting | 4 | Expired |
| US10856648B2 | Systems and methods for measuring and indicating brush head life | Electricity | 1 | Active |
| US8719599B2 | Monitoring subsystem power | Emerging Cross-Sectional Technologies | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.