Robert D. Haselby
19Patents
13h-index
22Co-inventors
78Inventor score
Filing activity: Jan 4, 1977 → Oct 27, 2005
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5250956A | Print cartridge bidirectional alignment in carriage axis | Performing Operations; Transporting | 99 | Expired |
| US5297017A | Print cartridge alignment in paper axis | Performing Operations; Transporting | 88 | Expired |
| US5289208A | Automatic print cartridge alignment sensor system | Physics | 77 | Expired |
| US5488397A | Wide-swath printer/plotter using multiple printheads | Performing Operations; Transporting | 51 | Expired |
| US4922270A | Inter pen offset determination and compensation in multi-pen thermal ink jet pen printing systems | Performing Operations; Transporting | 50 | Expired |
| US6241334A | Automatic print cartridge alignment sensor system | Physics | 49 | Expired |
| US5109239A | Inter pen offset determination and compensation in multi-pen ink jet printing systems | Performing Operations; Transporting | 33 | Expired |
| US4916638A | Media advance system for swath printers | Electricity | 32 | Expired |
| US5644344A | Optical print cartridge alignment system | Physics | 30 | Expired |
| US6161914A | Alignment sensor system for multiple print cartridges | Physics | 24 | Expired |
| US5991055A | Underpulsed scanner with variable scan speed, P. W. M. color balance, scan modes and column reversal | Electricity | 21 | Expired |
| US4115726A | Open-loop electric drive with corrective controller | Physics | 18 | Expired |
| US4567565A | Apparatus and method for pen-lift system | Physics | 14 | Expired |
| US5861899A | Wide-swath printer/plotter using multiple printheads | Performing Operations; Transporting | 13 | Expired |
| US6568782B1 | Calibration system to correct printhead misalignments | Physics | 10 | Expired |
| US5517217A | Apparatus for enhancing ink-flow reliability in a thermal-inkjet pen; method for priming and using such a pen | Performing Operations; Transporting | 9 | Expired |
| US4163928A | Open-loop electric drive with corrective controller | Physics | 9 | Expired |
| US4844317A | Position transducer for use with a printer or plotter | Physics | 3 | Expired |
| US8223958B2 | Determining an active line | Electricity | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.