- All sections
- H - Electricity
- H05F - Static electricity; naturally-occurring electricity
- H05F 3/04 - Carrying-off electrostatic charges by means of spark gaps or other discharge devices
Patent holdings for IPC class H05F 3/04
Total number of patents in this class: 275
10-year publication summary
|
22
|
28
|
27
|
28
|
16
|
20
|
18
|
13
|
14
|
6
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Murata Manufacturing Co., Ltd. | 22355 |
26 |
| Sharp Kabushiki Kaisha | 18957 |
14 |
| Illinois Tool Works Inc. | 11152 |
12 |
| Koganei Corporation | 209 |
8 |
| Lightning Suppression Systems Co., Ltd. | 14 |
8 |
| Hugle Electronics Inc. | 21 |
6 |
| 3m Innovative Properties Company | 18406 |
5 |
| KEYENCE Corporation | 372 |
5 |
| Panasonic Industrial Devices SUNX Co., Ltd. | 57 |
5 |
| International Business Machines Corporation | 60644 |
4 |
| TDK Corporation | 6306 |
4 |
| Shenzhen China Star Optoelectronics Technology Co., Ltd. | 8635 |
4 |
| Nippon Telegraph and Telephone Corporation | 14195 |
4 |
| National Institute of Advanced Industrial Science and Technology | 3677 |
4 |
| Boe Technology Group Co., Ltd. | 35384 |
4 |
| Sunje Hi-Tek Co., LTD. | 34 |
4 |
| Samsung Electro-mechanics Co., Ltd. | 4798 |
3 |
| Midori Anzen Co., Ltd. | 109 |
3 |
| TOYOTA JIDOSHA KABUSHIKI KAISHA (also trading as TOYOTA MOTOR CORPORATION) | 13301 |
3 |
| Schunk Transit Systems GmbH | 60 |
3 |
| Other owners | 146 |