- All sections
- H - Electricity
- H01J - Electric discharge tubes or discharge lamps
- H01J 29/87 - Arrangements for preventing or mitigating effects of implosion of vessels or containers
Patent holdings for IPC class H01J 29/87
Total number of patents in this class: 20
10-year publication summary
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| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Kabushiki Kaisha Toshiba, doing business as Toshiba Corporation | 6275 |
8 |
| Thomson Licensing | 4027 |
2 |
| Toray Industries, Inc. | 6652 |
2 |
| Nippon Sheet Glass Company, Limited | 992 |
2 |
| Canon Kabushiki Kaisha | 6884 |
2 |
| Panasonic Corporation | 20786 |
1 |
| Asahi Glass Company, Limited | 2985 |
1 |
| Endress+Hauser Process Solutions AG | 188 |
1 |
| MALEY, Elaine | 2 |
1 |
| Other owners | 0 |