- 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: 10263
10-year publication summary
|
690
|
799
|
818
|
827
|
901
|
822
|
574
|
475
|
450
|
141
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Taiwan Semiconductor Manufacturing Company, Ltd. | 36809 |
868 |
| Tokyo Electron Limited | 11599 |
725 |
| Nikon Corporation | 7162 |
636 |
| FUJIFILM Corporation | 27102 |
567 |
| JSR Corporation | 2476 |
305 |
| Applied Materials, Inc. | 16587 |
261 |
| Tokyo Ohka Kogyo Co., Ltd. | 1481 |
232 |
| Nissan Chemical Industries, Ltd. | 1822 |
230 |
| Samsung Electronics Co., Ltd. | 131630 |
210 |
| Screen Holdings Co., Ltd. | 2431 |
185 |
| Nissan Chemical Corporation | 1725 |
180 |
| Intel Corporation | 45621 |
160 |
| Canon Kabushiki Kaisha | 6884 |
156 |
| International Business Machines Corporation | 60644 |
153 |
| Kioxia Corporation | 9847 |
130 |
| Lam Research Corporation | 4775 |
126 |
| Hoya Corporation | 2822 |
113 |
| Boe Technology Group Co., Ltd. | 35384 |
111 |
| Canon Inc. | 36841 |
104 |
| Asahi Glass Company, Limited | 2985 |
104 |
| Other owners | 4707 |