- All sections
- H - Electricity
- H01J - Electric discharge tubes or discharge lamps
- H01J 29/88 - VesselsContainersVacuum locks provided with coatings on the walls thereofSelection of materials for the coatings
Patent holdings for IPC class H01J 29/88
Total number of patents in this class: 14
10-year publication summary
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| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Semiconductor Energy Laboratory Co., Ltd. | 11398 |
4 |
| Hamamatsu Photonics K.K. | 4413 |
2 |
| Thomson Licensing | 3611 |
1 |
| Konica Minolta Holdings, Inc. | 926 |
1 |
| L-3 Communications Corporation | 95 |
1 |
| Photonis Netherlands B.V. | 29 |
1 |
| Vu1 Corporation | 5 |
1 |
| Canon Kabushiki Kaisha | 7055 |
1 |
| RMD Intellectual Properties LLC | 1 |
1 |
| MALEY, Elaine | 2 |
1 |
| Other owners | 0 |