US Patent 3,951,134 — apparatus and method for remotely monitoring and altering brain waves

US Patent 3,951,134 was filed with the United States Patent and Trademark Office in 1974 by Robert G. Malech, an engineer at Dorne and Margolin Inc., a defense electronics company based in Bohemia, New York, on Long Island. The patent was granted in 1976. It has never been classified. It is a public record, searchable and downloadable from the USPTO database. Its existence is not in dispute.

The patent is titled "Apparatus and Method for Remotely Monitoring and Altering Brain Waves." Its abstract describes a system for simultaneously measuring and altering the brain wave activity of a subject from a distance, using a combination of transmitted electromagnetic signals and analysis of the signals returned from the subject's body. The device requires no physical contact with the subject and no knowledge or consent on the part of the subject.

This is not a classified program, a leaked document, or an unverified claim. It is a patent application that was examined by the United States Patent Office under its standard review process and found to meet the criteria for patentability, meaning the examiners determined the device was novel, non-obvious, and useful. They approved it.

The device described in the patent operates by transmitting two electromagnetic signals at frequencies near the alpha and beta brain wave frequency ranges toward a subject. The signals mix in the body of the subject and produce what the patent describes as a beat frequency. The device's receiver then measures the electromagnetic signal radiated back from the subject at this beat frequency, which the patent states varies in correspondence with the subject's brain wave activity. The device uses this returned signal to produce a representation of the subject's brain wave state on a display.

The alteration function operates by transmitting additional electromagnetic signals at the frequencies of specific brain wave states. The patent states that by transmitting signals in the alpha frequency range, the device can induce alpha brain wave activity in the subject. Alpha waves are associated with relaxed, unfocused mental states. The device can similarly transmit at other brain wave frequencies to influence the subject's mental state in corresponding directions.

The patent makes no claim about the maximum effective range of the device. It does not describe the power levels required or the physical size of the transmission apparatus. It describes the operating principle and claims protection for that principle and the method of applying it.

Dorne and Margolin Inc. was a defense electronics contractor. The company produced radar systems, antenna systems, and electronic countermeasure equipment for the United States military. A patent from a defense electronics contractor for a device that monitors and alters brain wave states is not straightforwardly explained as a purely commercial or academic development.

US Patent 3,951,134 was filed in the same year that Project MKUltra was formally terminated, following the order by CIA Director Richard Helms to destroy the program's records. The MKUltra record, in the portion that survived destruction, includes references to research into the use of electromagnetic signals to alter brain function. The 2024 National Security Archive collection on CIA behavioral sciences includes documents adjacent to this research area, though the specific connection between that research and the Malech patent is not established by any released document.

What can be established from the documentary record is that by 1950 the CIA and the Air Force were in formal coordination on behavioral research. By 1953 MKUltra had begun exploring electromagnetic approaches to behavioral influence. By 1974 a defense electronics contractor on Long Island had filed and received approval for a patent on a device that operates on the principle those MKUltra documents describe as a research direction.

The chronology is a fact. The interpretation of that chronology is a matter the available record does not resolve.

The patent does not establish that the device described was built, tested, or deployed. A patent protects an inventor's right to a described method or apparatus. It does not confirm that the apparatus was constructed or that the method was applied. Many patents describe devices that are never produced beyond a prototype or a theoretical description.

The patent does not establish any connection to MKUltra, to Montauk Air Force Station, or to any other government program. Those connections are not present in the patent document itself. They are inferences drawn by researchers examining the broader context. This page presents the patent as a primary source document. The inferences drawn from it are the reader's to make.