Purefize Technologies AB
Records under this name other than the patents Purefize Technologies AB holds now: patents now held by others, patents whose terms have ended, and its applications, pending or abandoned. None of them is counted in the 19 patents it holds.
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| Patent | Title | Status | Expires | Confidence |
|---|---|---|---|---|
| US 8,143,774 | Carbon based field emission cathode and method of manufacturing the same Lapsed on the fee record Ended Mar 27, 2024 · From the USPTO record | Lapsed on the fee record | Ended Mar 27, 2024 | From the USPTO record |