Graphtec Corporation
52Patents
26Active
52Granted
45Portfolio score
Filing activity: Mar 7, 1983 → Apr 21, 2021 · 4 expiring within 5 years
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5120907A | Device for determining position coordinates of points on a surface | Physics | 38 | Expired |
| USD680157S1 | Cutting plotter | General | 26 | Active |
| US5895895A | Input pen | Physics | 26 | Expired |
| US5121143A | Ink printing head with variable-size heat elements | Performing Operations; Transporting | 26 | Expired |
| USD540855S1 | Ink cartridge | General | 20 | Expired |
| USD795338S1 | Cutting plotter | General | 18 | Active |
| USD720395S1 | Cutting plotter | General | 17 | Active |
| USD837290S1 | Embossing machine | General | 14 | Active |
| US4630071A | XY recorder | Physics | 10 | Expired |
| USD852269S1 | Cutting plotter | General | 10 | Active |
| US4795858A | Device for determining position coordinates of points on a surface | Physics | 10 | Expired |
| USD797586S1 | Measurement data collector | General | 10 | Active |
| US4855755A | Thermal head supporting means in thermal recording apparatus | Performing Operations; Transporting | 9 | Expired |
| US4806708A | Coordinate determining device and method of determining X-Y coordinate position | Physics | 8 | Expired |
| US5414226A | Tablet position digitizer | Physics | 8 | Expired |
| US5670754A | Digitizer and position determination method therefor | Physics | 8 | Expired |
| US8156852B2 | Cutting plotter, cutting plotter driving control device, cut target medium supporting sheet, cut target medium, cutting pen, method of manufacturing paper product, and method of generating cut data | Emerging Cross-Sectional Technologies | 8 | Active |
| USD874559S1 | X-Y plotter for cutting | General | 7 | Active |
| USD539340S1 | Print head for printer | General | 7 | Expired |
| USD802657S1 | Roll feeder for cutting plotter | General | 7 | Active |
| US5216444A | Apparatus for controlling reference position of paper in a multiple-time recorder and control method thereof | Performing Operations; Transporting | 7 | Expired |
| US5691511A | Cordless digitizer | Physics | 7 | Expired |
| US4905016A | Recorder with a pencil pen and method therefor | Physics | 6 | Expired |
| US5702188A | Thermal head and head drive circuit therefor | Performing Operations; Transporting | 5 | Expired |
| US4928117A | Thermal printout density control | Physics | 5 | Expired |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.