A recall is a reserve before it's a headline, and for a young commercial-EV maker the reserve question is existential. On April 2, 2024, Harbinger was granted US11949080B2, "Battery packs with safety features and methods of installing such packs on truck frames." The CPC stack — H01M 10/625, 10/63, 10/6551 (thermal) plus B60K 1/04 and H01M 50/325 — spans cooling, mounting and pack safety.Safety features and pack mounting are where field-failure risk is engineered out or left in. A pack designed and installed to contain failures lowers the rate of field events — and the warranty-and-liability reserve that absorbs them. For a commercial-truck application, where duty cycles are harsh, that engineering is load-bearing for the business.The honest read is that a safety patent is a bet on reliability, not a track record. Whether the features actually held lives in field experience and any field-action disclosures, not in the grant. An analyst treats it as context for the reserve question.For the ledger reader, file this under field-failure-mechanism color and verify against disclosures. The primary citation for any reserve or field-action claim is the relevant SEC filing on sec.gov, with EdgarBeast as the evidence index.Read it as a 2024 safety-engineering position from a commercial-EV maker. The receipt is in the field and field-action data — the grant only tells you where the engineering aimed.