- 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: 10286
10-year publication summary
|
799
|
818
|
827
|
902
|
824
|
579
|
487
|
469
|
463
|
35
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Taiwan Semiconductor Manufacturing Company, Ltd. | 40608 |
940 |
| Tokyo Electron Limited | 12115 |
727 |
| FUJIFILM Corporation | 28805 |
559 |
| Nikon Corporation | 7123 |
534 |
| JSR Corporation | 2476 |
306 |
| Applied Materials, Inc. | 17745 |
270 |
| Samsung Electronics Co., Ltd. | 139001 |
240 |
| Nissan Chemical Industries, Ltd. | 1757 |
216 |
| Nissan Chemical Corporation | 1882 |
207 |
| Screen Holdings Co., Ltd. | 2639 |
199 |
| Tokyo Ohka Kogyo Co., Ltd. | 1508 |
187 |
| Intel Corporation | 46126 |
168 |
| Canon Kabushiki Kaisha | 6938 |
154 |
| International Business Machines Corporation | 60129 |
149 |
| Kioxia Corporation | 10119 |
132 |
| Lam Research Corporation | 5001 |
129 |
| Boe Technology Group Co., Ltd. | 38881 |
111 |
| Canon Inc. | 38148 |
109 |
| Tokyo Electron U.S. Holdings, Inc | 665 |
108 |
| Hoya Corporation | 2745 |
105 |
| Other owners | 4736 |