Lassen Peak Secures Patents for Revolutionary Portable Weapon Detection System

Lassen Peak, Inc., a groundbreaking company based in Bellevue, Washington, has recently announced the granting of two pivotal U.S. patents for its innovative portable weapon detection system known as AirFrisk™. This achievement marks a significant milestone in the company's journey, bringing the total number of its issued patents to six, with further applications still pending.

Advancements in Weapon Detection Technology

Founded by Hatch Graham and Dr. Ehsan Afshari, both of whom are instrumental in the development of this technology, Lassen Peak aims to enhance public safety through groundbreaking detection systems. The two new patents provide extensive protection for both the device and its operational methodology, creating a strong barrier against competitors and safeguarding the company's intellectual property.

The first patent, No. 12.332.342, granted on June 17, 2025, specifically covers the physical apparatus, including the unique single-chip radar architecture of the portable scanner. The second patent, No. 12.405.367, awarded on September 2, 2025, pertains to the method of use, which outlines a non-invasive procedure for detecting concealed weapons from a safe distance without any physical contact. Together, these patents encapsulate the essence of their innovation—both the technology itself and the methodology of operation.

Unique Features of AirFrisk

Operating within the frequency range of 304-311 GHz in the sub-millimeter wave band, the AirFrisk scanner is designed to differentiate hidden weapons from everyday items like phones, wallets, and keys. The technology's cutting-edge capabilities were further certified when Lassen Peak secured a ten-year experimental FCC Spectrum Horizons license for the frequency range of 280-320 GHz in early 2023, allowing them to proceed with the development and field deployment of their system.

The combination of a battery-operated, portable design sets AirFrisk apart from fixed installation systems typically used at facility entrances. This unique architecture provides versatility, enabling AirFrisk to be employed similarly to personal equipment such as body cameras or hand-held energy devices, rather than relying on bulky infrastructure like traditional metal detectors.

Enhanced Signal Processing

At the heart of AirFrisk is a patented RadAR in Chip (RSOC) system, which integrates a complete set of phased antennas consisting of 24 receivers and 8 transmitters on a single chip. This advanced design allows for programmable options of 48 to 192 transmitter/receiver combinations. With a coherent detection approach, measuring both the amplitude and phase of return signals significantly improves the signal-to-noise ratio compared to traditional methodologies. This enhancement enables efficient operation on batteries, making it suitable for portable devices.

Hatch Graham emphasized the importance of achieving both patents, stating, “Not only have we secured our hardware, but we've also protected the fundamental process of portable concealed weapons detection. This multi-patent structure creates a competitive edge benefiting both our investors and the law enforcement agencies that will depend on this technology.”

A Focus on Safety and Civil Liberties

Beyond the technological advancements, Lassen Peak has established a forward-thinking leadership team to navigate the balancing act between public safety and civil liberties. Scott Greenwood, a prominent constitutional rights attorney and former general counsel for the American Civil Liberties Union (ACLU), has joined the company's Board of Directors. Greenwood's extensive experience includes serving as the past president of constitutional policing and best practices for the International Association of Chiefs of Police (IACP). He ensures that the implementation of AirFrisk technology operates within stringent constitutional boundaries, effectively minimizing the liabilities for law enforcement agencies while also safeguarding citizens' rights.

Conclusion

Lassen Peak is increasingly becoming a prominent player in the field of advanced security technology, dedicated to providing law enforcement and the public with safer, less contentious alternatives to traditional methods of identifying concealed weapons. Their innovative approach, enhanced by legal foresight, positions them well within the rapidly evolving landscape of public safety technology. The future looks promising as Lassen Peak continues to push boundaries and redefine security standards with its groundbreaking solutions.