Lassen Peak Achieves Two Key Patents for World's First Portable Terahertz Weapon Detection System

Lassen Peak Secures Two Crucial Patents for Revolutionary Weapon Detection Technology

Lassen Peak, Inc., a Seattle-based startup, has made significant strides in enhancing public safety with its innovative technology. Recently, the company announced that it secured two pivotal US patents for its AirFrisk device, which is touted as the world’s first handheld terahertz weapon detection system. This achievement not only marks a milestone in the company’s journey but also emphasizes its commitment to creating safe environments for law enforcement and the communities they serve.

A Groundbreaking Development

The patents in question are aimed at protecting both the device and its operational methods. The first patent (No. 12 332 342) was awarded on June 17, 2025, and focuses on the device’s unique single-chip radar architecture. The second patent (No. 12 405 367), granted on September 2, 2025, covers the device's non-invasive detection process, which ensures that concealed weapons can be identified from a safe distance without physical contact.

These patents create a strong intellectual property foundation that strengthens Lassen Peak's market position as it moves toward commercialization. The technology allows for effective detection while maintaining privacy and civil liberties, addressing concerns often associated with security measures.

How the AirFrisk System Works

The AirFrisk scanner operates at frequencies between 304-311 GHz within the submillimeter wave range. This unique spectral region, starting from 300 GHz, enables the device to distinguish concealed weapons from everyday objects such as phones and wallets. In early 2023, Lassen Peak secured a ten-year experimental license from the FCC for the 280-320 GHz spectrum, allowing for continued development and field deployment of the device.

The portable nature of the AirFrisk sets it apart from traditional fixed detection systems, which often require substantial infrastructure. Instead, it functions similarly to a body camera or a conducted electricity device (CED), thus offering the flexibility desired by law enforcement in real-world applications.

Technological Innovations

At the heart of AirFrisk is a proprietary Radar System on Chip (RSOC), which comprises a fully phased array network with 24 receivers and 8 transmitters on a single chip. This intricate system is programmable to accommodate various emitter/receiver combinations, vastly improving the signal-to-noise ratio compared to conventional methods. As a result, the device can operate efficiently while relying on battery power, a critical feature for portable equipment.

Hatch Graham, Lassen Peak's co-founder and CEO, notes the significant efforts put into protecting both the hardware and the method of concealed weapon detection. He stated, "This multi-patent strategy not only secures our technology, but also provides a competitive edge for our investors and the law enforcement agencies that will rely on it."

A New Era for Public Safety

Co-founder Dr. Ehsan Afshari highlighted the advances in technology that led to the development of this system, which uses submillimeter wave imaging and requires far less power than a standard smartphone. With this capability, AirFrisk can deliver reliable detection while ensuring user safety and comfort during frequent use.

Beyond technological advancements, Lassen Peak is shaping its management team to proactively address the balance between public safety and civil liberties. Nationally recognized constitutional rights attorney Scott Greenwood has joined the board, bringing extensive experience in ensuring that technologies like AirFrisk are deployed within constitutional limits. This approach aims to mitigate risks for law enforcement agents while safeguarding the rights of the public.

Conclusion

Lassen Peak exemplifies how technology can contribute to public safety without sacrificing personal freedoms. By blending advanced radar and artificial intelligence with a commitment to civil rights, the company is setting new standards for weapon detection systems. As they move closer to market readiness, the AirFrisk could redefine how law enforcement approaches security, presenting a safer and less controversial means of identifying dangerous items. The combination of innovative technology and thoughtful implementation positions Lassen Peak as a leader in the future of public safety solutions.