- 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: 4165
10-year publication summary
|
346
|
361
|
435
|
508
|
505
|
387
|
357
|
268
|
284
|
161
|
| 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. | 42945 |
762 |
| Applied Materials, Inc. | 18746 |
338 |
| Tokyo Electron Limited | 12762 |
332 |
| Samsung Electronics Co., Ltd. | 146811 |
229 |
| International Business Machines Corporation | 61305 |
173 |
| Micron Technology, Inc. | 26264 |
169 |
| Lam Research Corporation | 5272 |
167 |
| Intel Corporation | 47033 |
137 |
| United Microelectronics Corp. | 4241 |
109 |
| Nanya Technology Corporation | 2480 |
76 |
| Semiconductor Manufacturing International (Shanghai) Corporation | 1766 |
74 |
| ASM IP Holding B.V. | 2083 |
66 |
| Kioxia Corporation | 10314 |
66 |
| Semiconductor Manufacturing International (Beijing) Corporation | 1033 |
62 |
| Changxin Memory Technologies, Inc. | 4926 |
61 |
| GLOBALFOUNDRIES U.S. Inc. | 6426 |
59 |
| Tokyo Electron U.S. Holdings, Inc | 753 |
59 |
| Shin-Etsu Chemical Co., Ltd. | 5669 |
54 |
| SK Hynix Inc. | 11399 |
44 |
| Fujian Jinhua Integrated Circuit Co., Ltd. | 417 |
41 |
| Other owners | 1087 |