Patent Theme
Advanced Mask Technologies
Innovations in the design, materials, and manufacturing of lithography masks, including reflective masks, programmable masks, and defect mitigation strategies, to enable finer feature patterning and process control.
4,611 US filings from 723 companies since 2023 · 2023: 1,277 · 2024: 1,467 · 2025: 1,334 · 2026 YTD: 533
Photolithography
Top companies
Ranked by filings in this theme since 2023. 2026 is partial.
| # | Company | Since 2023 | 2023 | 2024 | 2025 | 2026 YTD | YoY |
|---|
| 1 | Taiwan Semiconductor Manufacturing Company, Ltd. | 413 | 111 | 140 | 114 | 48 | -18.6% |
| 2 | ASML Netherlands B.V. | 322 | 97 | 102 | 95 | 28 | -6.9% |
| 3 | Taiwan Semiconductor Manufacturing Co., Ltd. | 228 | 70 | 70 | 70 | 18 | 0.0% |
| 4 | SAMSUNG ELECTRONICS CO., LTD. | 213 | 58 | 62 | 65 | 28 | +4.8% |
| 5 | CARL ZEISS SMT GMBH | 187 | 37 | 56 | 58 | 36 | +3.6% |
| 6 | Applied Materials, Inc. | 176 | 65 | 55 | 44 | 12 | -20.0% |
| 7 | SHIN-ETSU CHEMICAL CO., LTD. | 172 | 45 | 53 | 44 | 30 | -17.0% |
| 8 | CANON KABUSHIKI KAISHA | 161 | 49 | 45 | 50 | 17 | +11.1% |
| 9 | TOKYO ELECTRON LIMITED | 139 | 25 | 24 | 62 | 28 | +158.3% |
| 10 | Samsung Display Co., Ltd. | 113 | 48 | 19 | 32 | 14 | +68.4% |
| 11 | HOYA CORPORATION | 82 | 27 | 37 | 12 | 6 | -67.6% |
| 12 | AGC Inc. | 74 | 9 | 33 | 28 | 4 | -15.2% |
| 13 | NANYA TECHNOLOGY CORPORATION | 57 | 12 | 17 | 17 | 11 | 0.0% |
| 14 | CHANGXIN MEMORY TECHNOLOGIES, INC. | 51 | 21 | 23 | 7 | · | -69.6% |
| 15 | International Business Machines Corporation | 49 | 18 | 15 | 12 | 4 | -20.0% |
| 16 | Lam Research Corporation | 48 | 11 | 9 | 26 | 2 | +188.9% |
| 17 | FUJIFILM CORPORATION | 45 | 14 | 15 | 10 | 6 | -33.3% |
| 18 | BOE Technology Group Co., Ltd. | 44 | 14 | 20 | 7 | 3 | -65.0% |
| 19 | INTEL CORPORATION | 43 | 15 | 11 | 14 | 3 | +27.3% |
| 20 | Kioxia Corporation | 43 | 12 | 18 | 11 | 2 | -38.9% |
| 21 | UNITED MICROELECTRONICS CORP. | 43 | 7 | 21 | 11 | 4 | -47.6% |
| 22 | Synopsys, Inc. | 35 | 15 | 8 | 10 | 2 | +25.0% |
| 23 | D2S, INC. | 31 | 6 | 9 | 15 | 1 | +66.7% |
| 24 | NIKON CORPORATION | 29 | 6 | 9 | 9 | 5 | 0.0% |
| 25 | MITSUI CHEMICALS, INC. | 24 | 5 | 8 | 9 | 2 | +12.5% |