Hevatech
Records under this name other than the patents Hevatech 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 4 patents it holds.
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| Patent | Title | Status | Expires | Confidence |
|---|---|---|---|---|
| US 11,333,047 | External heat source engine with slide valves Lapsed on the fee record Ended May 17, 2026 · From the USPTO record | Lapsed on the fee record | Ended May 17, 2026 | From the USPTO record |