- All sections
- H - Electricity
- H01L - Semiconductor devices not covered by class
- H01L 21/033 - Making masks on semiconductor bodies for further photolithographic processing, not provided for in group or comprising inorganic layers
Patent holdings for IPC class H01L 21/033
Total number of patents in this class: 4309
10-year publication summary
|
361
|
435
|
509
|
505
|
387
|
355
|
266
|
272
|
249
|
92
|
| 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. | 48248 |
796 |
| Tokyo Electron Limited | 13796 |
373 |
| Applied Materials, Inc. | 20363 |
357 |
| Samsung Electronics Co., Ltd. | 157557 |
235 |
| International Business Machines Corporation | 62621 |
178 |
| Lam Research Corporation | 5621 |
168 |
| Micron Technology, Inc. | 27626 |
145 |
| Intel Corporation | 47102 |
138 |
| United Microelectronics Corp. | 4492 |
111 |
| Nanya Technology Corporation | 2900 |
81 |
| Semiconductor Manufacturing International (Shanghai) Corporation | 1735 |
78 |
| Tokyo Electron U.S. Holdings, Inc | 899 |
72 |
| ASM IP Holding B.V. | 2387 |
69 |
| Kioxia Corporation | 10805 |
66 |
| Changxin Memory Technologies, Inc. | 4933 |
63 |
| Semiconductor Manufacturing International (Beijing) Corporation | 1031 |
62 |
| GLOBALFOUNDRIES U.S. Inc. | 6391 |
59 |
| Shin-Etsu Chemical Co., Ltd. | 6083 |
56 |
| SK Hynix Inc. | 12452 |
49 |
| Fujian Jinhua Integrated Circuit Co., Ltd. | 459 |
42 |
| Other owners | 1111 |