- 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: 12975
10-year publication summary
|
934
|
1006
|
1022
|
1104
|
1254
|
1510
|
1572
|
1654
|
1681
|
536
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Applied Materials, Inc. | 16587 |
2346 |
| Tokyo Electron Limited | 11599 |
1959 |
| Lam Research Corporation | 4775 |
1548 |
| Samsung Electronics Co., Ltd. | 131630 |
302 |
| Taiwan Semiconductor Manufacturing Company, Ltd. | 36809 |
298 |
| Hitachi High-Tech Corporation | 4424 |
253 |
| ASM IP Holding B.V. | 1715 |
235 |
| Semes Co., Ltd. | 1119 |
195 |
| Kokusai Electric Corporation | 1791 |
165 |
| Varian Semiconductor Equipment Associates, Inc. | 1282 |
163 |
| MKS Instruments, Inc. | 698 |
135 |
| Advanced Energy Industries, Inc. | 403 |
133 |
| Beijing Naura Microelectronics Equipment Co., Ltd. | 430 |
116 |
| Beijing E-town Semiconductor Technology, Co., Ltd | 246 |
103 |
| Tokyo Electron U.S. Holdings, Inc | 608 |
81 |
| Jusung Engineering Co., Ltd. | 359 |
72 |
| Kioxia Corporation | 9847 |
71 |
| Panasonic Intellectual Property Management Co., Ltd. | 27812 |
64 |
| Mattson Technology, Inc. | 231 |
64 |
| Oerlikon Surface Solutions AG, Pfaffikon | 556 |
64 |
| Other owners | 4608 |