- All sections
- H - Electricity
- H01L - Semiconductor devices not covered by class
- H01L 21/027 - Making masks on semiconductor bodies for further photolithographic processing, not provided for in group or
Patent holdings for IPC class H01L 21/027
Total number of patents in this class: 10245
10-year publication summary
|
817
|
827
|
902
|
823
|
577
|
500
|
448
|
440
|
469
|
152
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Taiwan Semiconductor Manufacturing Company, Ltd. | 49027 |
1037 |
| Tokyo Electron Limited | 13956 |
782 |
| FUJIFILM Corporation | 30774 |
541 |
| Nikon Corporation | 7229 |
364 |
| Applied Materials, Inc. | 20601 |
311 |
| JSR Corporation | 2559 |
287 |
| Samsung Electronics Co., Ltd. | 159298 |
260 |
| Nissan Chemical Corporation | 2294 |
230 |
| Screen Holdings Co., Ltd. | 3267 |
209 |
| Nissan Chemical Industries, Ltd. | 1629 |
198 |
| Intel Corporation | 46313 |
171 |
| Canon Kabushiki Kaisha | 7406 |
159 |
| International Business Machines Corporation | 62847 |
152 |
| Kioxia Corporation | 11022 |
134 |
| Lam Research Corporation | 5709 |
131 |
| Tokyo Electron U.S. Holdings, Inc | 919 |
123 |
| Canon Inc. | 44414 |
119 |
| Shin-Etsu Chemical Co., Ltd. | 6148 |
115 |
| Boe Technology Group Co., Ltd. | 44784 |
110 |
| KLA-Tencor Corporation | 2517 |
104 |
| Other owners | 4708 |