- 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: 14853
10-year publication summary
|
1007
|
1022
|
1105
|
1257
|
1515
|
1592
|
1688
|
1712
|
1671
|
835
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Applied Materials, Inc. | 18406 |
2764 |
| Tokyo Electron Limited | 12540 |
2248 |
| Lam Research Corporation | 5187 |
1778 |
| Samsung Electronics Co., Ltd. | 144143 |
389 |
| Taiwan Semiconductor Manufacturing Company, Ltd. | 42118 |
368 |
| Hitachi High-Tech Corporation | 5241 |
300 |
| ASM IP Holding B.V. | 2029 |
295 |
| Semes Co., Ltd. | 1420 |
242 |
| Kokusai Electric Corporation | 1960 |
185 |
| Advanced Energy Industries, Inc. | 466 |
160 |
| Varian Semiconductor Equipment Associates, Inc. | 1233 |
155 |
| MKS Instruments, Inc. | 667 |
147 |
| Beijing Naura Microelectronics Equipment Co., Ltd. | 571 |
143 |
| Beijing E-town Semiconductor Technology, Co., Ltd | 278 |
126 |
| Tokyo Electron U.S. Holdings, Inc | 724 |
104 |
| Jusung Engineering Co., Ltd. | 433 |
87 |
| NGK Insulators, Ltd. | 4920 |
86 |
| PSK Inc. | 124 |
79 |
| Kioxia Corporation | 10272 |
74 |
| Mattson Technology, Inc. | 229 |
71 |
| Other owners | 5052 |