{
  "abstract": "A leak detection system includes an emitter, detector, and electronic control unit (ECU). The emitter directs electromagnetic energy having a predetermined wavelength range, e.g., infrared energy, toward a surface of a product. The product defines an enclosure chamber containing a trace gas. The detector is positioned between the emitter and the product at an offset distance from the surface. The detector detects reflected energy. The ECU receives a signal from the detector that is indicative of a spectrum of the reflected energy and identifies a detected leak in the product. This includes comparing the spectrum of the reflected energy to a predetermined spectrum of the trace gas. The trace gas has a wavelength within the predetermined wavelength range of the emitter. The ECU generates an output signal in response to the leak, with the output signal identifying a presence and location of the leak.",
  "assignees": [
    "GM GLOBAL TECH OPERATIONS LLC"
  ],
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    "ABELL JEFFREY A",
    "BOBEL ANDREW C",
    "CARLSON BLAIR E",
    "GHASSEMI-ARMAKI HASSAN",
    "GHOSH RANAJIT",
    "ZEITVOGEL RANDOLPH"
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    "name": "Creative Commons Attribution 4.0 International",
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  "source_date": "2026-03-26",
  "source_id": "US-2026085993-A1",
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  "supersedes": null,
  "title": "Leak detection using reflection-based imaging",
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