Mark H. MacKenzie
64Patents
10h-index
67Co-inventors
81Inventor score
Filing activity: Apr 13, 2000 → Feb 13, 2020
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6267468A | Printhead substrate having a mixture of single and double sided elongate ink feed channels | Performing Operations; Transporting | 26 | Expired |
| US6808241B2 | Fluid ejection device | Performing Operations; Transporting | 25 | Expired |
| US6585352B1 | Compact high-performance, high-density ink jet printhead | Performing Operations; Transporting | 22 | Expired |
| US6481817B1 | Method and apparatus for ejecting ink | Performing Operations; Transporting | 16 | Expired |
| US6860587B2 | Ink jet printhead | Performing Operations; Transporting | 14 | Expired |
| US6767089B2 | Slotted semiconductor substrate having microelectronics integrated thereon | Performing Operations; Transporting | 14 | Expired |
| US6422676B1 | Compact ink jet printhead | Performing Operations; Transporting | 12 | Expired |
| US6315389A | Printhead having different center to center spacings between rows of nozzles | Performing Operations; Transporting | 11 | Expired |
| US6722759B2 | Ink jet printhead | Performing Operations; Transporting | 11 | Expired |
| US6902252B1 | Fluid ejection device with staggered ink drop generators | Performing Operations; Transporting | 11 | Expired |
| US6431686B1 | Fluid ejection device controlled by electrically isolated primitives | Performing Operations; Transporting | 10 | Expired |
| US6866364B2 | Printhead having drop generators in staggered axis groups | Performing Operations; Transporting | 9 | Expired |
| US6402279B1 | Inkjet printhead and method for the same | Performing Operations; Transporting | 9 | Expired |
| US8348373B2 | Firing signal forwarding in a fluid ejection device | Performing Operations; Transporting | 9 | Active |
| US6890064B2 | Energy balanced printhead design | Performing Operations; Transporting | 8 | Expired |
| US6698857B2 | Method and apparatus for transferring information to a printhead | Performing Operations; Transporting | 6 | Expired |
| US6488363B2 | Energy balanced printhead design | Performing Operations; Transporting | 5 | Expired |
| US6945634B2 | Thin film coating of a slotted substrate and techniques for forming slotted substrates | Performing Operations; Transporting | 5 | Expired |
| US6648732B2 | Thin film coating of a slotted substrate and techniques for forming slotted substrates | Performing Operations; Transporting | 5 | Expired |
| US6726311B2 | Energy balanced printhead design | Performing Operations; Transporting | 5 | Expired |
| US10343433B2 | Skew sensor calibration | Performing Operations; Transporting | 5 | Active |
| US6523935B2 | Narrow ink jet printhead | Performing Operations; Transporting | 5 | Expired |
| US8511796B2 | Firing cell | Performing Operations; Transporting | 4 | Active |
| US9268023B2 | Drop detection | Performing Operations; Transporting | 4 | Active |
| US8888212B2 | Printhead spacing | Performing Operations; Transporting | 4 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.