Matthew A. Shepherd
75Patents
9h-index
95Co-inventors
81Inventor score
Filing activity: Jan 6, 1995 → Feb 2, 2022
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5482305A | Shifting mechanism and quick release for multispeed wheelchair | Human Necessities | 44 | Expired |
| US6325483A | Techniques for increasing ink-jet pen identification information in an interconnect limited environment | Performing Operations; Transporting | 42 | Expired |
| US6616260B2 | Robust bit scheme for a memory of a replaceable printer component | Performing Operations; Transporting | 38 | Expired |
| US6435641B1 | Media movement apparatus | Performing Operations; Transporting | 33 | Expired |
| US8576450B2 | Replacing a defective colorant | Electricity | 18 | Active |
| US7237864B2 | Fluid ejection device identification | Performing Operations; Transporting | 16 | Expired |
| US9415585B1 | Dynamic power thresholds for printer device pens | Performing Operations; Transporting | 13 | Active |
| US6789870B2 | Drop quantity calibration method and system | Performing Operations; Transporting | 10 | Expired |
| US8348373B2 | Firing signal forwarding in a fluid ejection device | Performing Operations; Transporting | 9 | Active |
| US6471426B1 | Method of propelling an inkjet printer carriage | Performing Operations; Transporting | 8 | Expired |
| US6953239B2 | Printer system and printing method | Performing Operations; Transporting | 7 | Expired |
| US8376506B2 | Drop detection | Performing Operations; Transporting | 7 | Active |
| US8770685B2 | Logical and virtual nozzle-fire-restart-line for fluid-ejection device | Physics | 6 | Active |
| US6325559A | Single transmission state media handling for ejecting, picking and loading | Performing Operations; Transporting | 5 | Expired |
| US6769757B2 | Robust bit scheme for a memory of a replaceable printer component | Performing Operations; Transporting | 5 | Expired |
| US7188943B2 | Ink set for inkjet printing | Chemistry; Metallurgy | 3 | Expired |
| US10682810B2 | Three-dimensional (3D) printing | Performing Operations; Transporting | 3 | Active |
| US10981331B2 | Additive manufacturing | Performing Operations; Transporting | 3 | Active |
| US10560584B2 | Density classifiers based on plane regions | Physics | 2 | Active |
| US6948797B2 | Non-uniform passes per raster | Performing Operations; Transporting | 2 | Expired |
| US7286700B2 | Rendering using at least two levels of gray | Electricity | 2 | Expired |
| US9849671B2 | Adjusting the firing times of a number of nozzles | Performing Operations; Transporting | 1 | Active |
| US11260599B2 | Modulating a three-dimensional printer system based on a selected mode | Emerging Cross-Sectional Technologies | 1 | Active |
| US11548228B2 | Soft-proof of three-dimensional (3D) printed parts | Electricity | 1 | Active |
| US6952536B2 | Transmissive optical sensing of leading edges of media sheets advanced substantially adjacent to one another | Physics | 1 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.