- All sections
- H - Electricity
- H01J - Electric discharge tubes or discharge lamps
- H01J 37/32 - Gas-filled discharge tubes
Patent holdings for IPC class H01J 37/32
Total number of patents in this class: 17198
10-year publication summary
|
1023
|
1106
|
1257
|
1516
|
1599
|
1711
|
1755
|
1715
|
1836
|
1201
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Applied Materials, Inc. | 20514 |
3264 |
| Tokyo Electron Limited | 13884 |
2627 |
| Lam Research Corporation | 5676 |
2061 |
| Samsung Electronics Co., Ltd. | 158605 |
518 |
| Taiwan Semiconductor Manufacturing Company, Ltd. | 48629 |
430 |
| ASM IP Holding B.V. | 2419 |
356 |
| Hitachi High-Tech Corporation | 5941 |
328 |
| Semes Co., Ltd. | 1679 |
311 |
| Kokusai Electric Corporation | 2241 |
213 |
| Advanced Energy Industries, Inc. | 476 |
188 |
| Beijing Naura Microelectronics Equipment Co., Ltd. | 751 |
182 |
| Varian Semiconductor Equipment Associates, Inc. | 1180 |
153 |
| Beijing E-town Semiconductor Technology, Co., Ltd | 305 |
150 |
| MKS Instruments, Inc. | 548 |
138 |
| Tokyo Electron U.S. Holdings, Inc | 912 |
135 |
| NGK Insulators, Ltd. | 5173 |
108 |
| PSK Inc. | 149 |
97 |
| Jusung Engineering Co., Ltd. | 499 |
95 |
| Mattson Technology, Inc. | 245 |
90 |
| Kioxia Corporation | 10879 |
87 |
| Other owners | 5667 |