- 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: 4202
10-year publication summary
|
346
|
361
|
435
|
508
|
505
|
387
|
358
|
271
|
286
|
204
|
| 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. | 44095 |
776 |
| Tokyo Electron Limited | 13008 |
347 |
| Applied Materials, Inc. | 19005 |
341 |
| Samsung Electronics Co., Ltd. | 148077 |
230 |
| International Business Machines Corporation | 61616 |
173 |
| Lam Research Corporation | 5326 |
169 |
| Micron Technology, Inc. | 26279 |
158 |
| Intel Corporation | 46921 |
136 |
| United Microelectronics Corp. | 4264 |
109 |
| Nanya Technology Corporation | 2589 |
77 |
| Semiconductor Manufacturing International (Shanghai) Corporation | 1752 |
74 |
| ASM IP Holding B.V. | 2118 |
66 |
| Kioxia Corporation | 10441 |
66 |
| Tokyo Electron U.S. Holdings, Inc | 799 |
63 |
| Changxin Memory Technologies, Inc. | 4929 |
63 |
| Semiconductor Manufacturing International (Beijing) Corporation | 1033 |
62 |
| GLOBALFOUNDRIES U.S. Inc. | 6409 |
59 |
| Shin-Etsu Chemical Co., Ltd. | 5715 |
55 |
| SK Hynix Inc. | 11536 |
47 |
| Fujian Jinhua Integrated Circuit Co., Ltd. | 427 |
41 |
| Other owners | 1090 |