Patent Theme
Printhead Cleaning Systems
Mechanisms and methods for preventing or removing clogs, ink residue, or contaminants from printhead nozzles and surfaces to ensure consistent print quality and extend printhead lifespan.
5,203 US filings from 616 companies since 2023 · 2023: 1,297 · 2024: 1,660 · 2025: 1,520 · 2026 YTD: 726
Printers & Typewriters
Top companies
Ranked by filings in this theme since 2023. 2026 is partial.
| # | Company | Since 2023 | 2023 | 2024 | 2025 | 2026 YTD | YoY |
|---|
| 1 | Seiko Epson Corporation | 841 | 192 | 275 | 252 | 122 | -8.4% |
| 2 | CANON KABUSHIKI KAISHA | 819 | 149 | 253 | 262 | 155 | +3.6% |
| 3 | BROTHER KOGYO KABUSHIKI KAISHA | 383 | 109 | 138 | 92 | 44 | -33.3% |
| 4 | HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P. | 264 | 125 | 84 | 44 | 11 | -47.6% |
| 5 | KYOCERA Document Solutions Inc. | 244 | 37 | 81 | 87 | 39 | +7.4% |
| 6 | Ricoh Company, Ltd. | 190 | 43 | 56 | 61 | 30 | +8.9% |
| 7 | Xerox Corporation | 114 | 37 | 30 | 32 | 15 | +6.7% |
| 8 | SCREEN Holdings Co., Ltd. | 102 | 11 | 34 | 41 | 16 | +20.6% |
| 9 | Konica Minolta, Inc. | 94 | 20 | 30 | 37 | 7 | +23.3% |
| 10 | Memjet Technology Limited | 82 | 41 | 17 | 15 | 9 | -11.8% |
| 11 | SEMES CO., LTD. | 74 | 25 | 26 | 14 | 9 | -46.2% |
| 12 | TOSHIBA TEC KABUSHIKI KAISHA | 60 | 22 | 29 | 8 | 1 | -72.4% |
| 13 | FUJIFILM Business Innovation Corp. | 59 | 10 | 27 | 19 | 3 | -29.6% |
| 14 | Canon Production Printing Holding B.V. | 55 | 11 | 14 | 21 | 9 | +50.0% |
| 15 | KYOCERA CORPORATION | 51 | 3 | 21 | 17 | 10 | -19.0% |
| 16 | SII PRINTEK INC. | 51 | 12 | 20 | 10 | 9 | -50.0% |
| 17 | FUJIFILM CORPORATION | 46 | 8 | 15 | 18 | 5 | +20.0% |
| 18 | Samsung Display Co., Ltd. | 44 | 9 | 13 | 17 | 5 | +30.8% |
| 19 | Roland DG Corporation | 39 | 9 | 7 | 18 | 5 | +157.1% |
| 20 | ELECTRONICS FOR IMAGING, INC. | 38 | 8 | 11 | 14 | 5 | +27.3% |
| 21 | MIMAKI ENGINEERING CO., LTD. | 36 | 13 | 12 | 8 | 3 | -33.3% |
| 22 | Kateeva, Inc. | 34 | 10 | 9 | 14 | 1 | +55.6% |
| 23 | RISO Technologies Corporation | 33 | · | 4 | 15 | 14 | +275.0% |
| 24 | Funai Electric Co., Ltd. | 26 | 11 | 13 | 2 | · | -84.6% |
| 25 | General Electric Company | 23 | 3 | 6 | 5 | 9 | -16.7% |