Christopher John Arnold
22Patents
3h-index
22Co-inventors
63Inventor score
Filing activity: Oct 5, 1984 → Dec 4, 2018
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5507513A | Multi-terrain wheelchair | Human Necessities | 22 | Expired |
| US6271614A | Pulsed plasma drive electromagnetic motor generator | Electricity | 15 | Expired |
| US4724438A | Radar apparatus | Physics | 7 | Expired |
| US10569561B2 | Valves for fluid ejection devices | Mechanical Engineering; Lighting; Heating | 1 | Active |
| US11467017B2 | Sensing rods with tips for fluid detection | Performing Operations; Transporting | 1 | Active |
| US11267254B2 | Fluid recirculation within printing device reservoir via extraction pump and supply pump | Performing Operations; Transporting | 1 | Active |
| US11590762B2 | Recirculations using two pumps | Performing Operations; Transporting | 0 | Active |
| US11312151B2 | Fluid extraction using fill pump activation | Performing Operations; Transporting | 0 | Active |
| US11358394B2 | Print reservoir venting | Performing Operations; Transporting | 0 | Active |
| US11065894B2 | Engageable fluid interface members and connectors | Performing Operations; Transporting | 0 | Active |
| US11535036B2 | Unattended reservoir refillings | Performing Operations; Transporting | 0 | Active |
| US11241875B2 | Vented reservoirs with floats for print agents | Performing Operations; Transporting | 0 | Active |
| US10137695B2 | Printhead priming | Performing Operations; Transporting | 0 | Active |
| US11597206B2 | Purging manifolds | Performing Operations; Transporting | 0 | Active |
| US11312142B2 | Printing devices with removeable extraction reservoirs | Performing Operations; Transporting | 0 | Active |
| US11273646B2 | Fluid delivery | Performing Operations; Transporting | 0 | Active |
| US12214598B2 | Fluid extraction via removable extraction reservoirs | Performing Operations; Transporting | 0 | Active |
| US8870344B2 | Cleaning of fluid ejection assembly | Performing Operations; Transporting | 0 | Active |
| US11413874B2 | Extraction reservoir-triggered fluid extraction | Performing Operations; Transporting | 0 | Active |
| US10406500B2 | Composition comprising nucleated nanodiamond particles | Emerging Cross-Sectional Technologies | 0 | Active |
| US11427012B2 | Negative pressure recovery of printing agents | Performing Operations; Transporting | 0 | Active |
| US8770217B2 | Apparatus and methods for purging air from a fluid conveying tube | Emerging Cross-Sectional Technologies | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.