- All sections
- H - Electricity
- H01K - Electric incandescent lamps
- H01K 3/12 - Joining of mount or stem to vesselJoining parts of the vessel, e.g. by butt sealing
Patent holdings for IPC class H01K 3/12
Total number of patents in this class: 4
10-year publication summary
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2
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0
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0
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0
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0
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0
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0
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0
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0
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0
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| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Koninklijke Philips Electronics N.V. | 7277 |
1 |
| Advanced Lighting Technologies, Inc. | 17 |
1 |
| Ryuarm Co., Ltd. | 1 |
1 |
| Ryu-arm Co., Ltd. | 3 |
1 |
| Other owners | 0 |