- 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: 4107
10-year publication summary
|
346
|
361
|
437
|
508
|
505
|
387
|
357
|
269
|
281
|
109
|
| 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. | 42036 |
756 |
| Applied Materials, Inc. | 18383 |
333 |
| Tokyo Electron Limited | 12511 |
319 |
| Samsung Electronics Co., Ltd. | 143812 |
226 |
| International Business Machines Corporation | 60907 |
172 |
| Micron Technology, Inc. | 26196 |
168 |
| Lam Research Corporation | 5169 |
162 |
| Intel Corporation | 46678 |
137 |
| United Microelectronics Corp. | 4208 |
109 |
| Semiconductor Manufacturing International (Shanghai) Corporation | 1773 |
74 |
| Nanya Technology Corporation | 2365 |
73 |
| ASM IP Holding B.V. | 2024 |
65 |
| Kioxia Corporation | 10268 |
65 |
| Semiconductor Manufacturing International (Beijing) Corporation | 1032 |
62 |
| Changxin Memory Technologies, Inc. | 4925 |
61 |
| GLOBALFOUNDRIES U.S. Inc. | 6434 |
59 |
| Tokyo Electron U.S. Holdings, Inc | 718 |
56 |
| Shin-Etsu Chemical Co., Ltd. | 5587 |
50 |
| SK Hynix Inc. | 11200 |
44 |
| Fujian Jinhua Integrated Circuit Co., Ltd. | 408 |
41 |
| Other owners | 1075 |