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Lassen Peak, Inc. has secured two U.S. patents for its AirFrisk handheld concealed weapon detection system, bringing its total issued patents to six. The technology, which operates at 304-311 GHz and utilizes a Radar System on Chip, enables non-invasive detection of concealed weapons without physical contact. Additionally, Lassen Peak received an FCC Spectrum Horizons experimental license for the 280-320 GHz range earlier this year to support the device's development.