Brain Shield
A notice delivery service for neural data

Refuse consent to brain-reading technology before it reaches you.

Brain Shield puts 49 companies building, selling, or patenting brain-reading hardware and software on formal written notice, in your name, that you do not consent to the collection, decoding, inference, or sale of your neural data by anything they may deploy in future. One order. Certified mail to every registered agent. The proof stays with you.

Buy Brain Shield for $49 Ordering opens at launch. See who receives notice
49
companies receive your notice
20
patents cited by number, 1976 to 2024
$400B
projected US brain-computer interface market
Source: PatentVest
29 of 30
consumer neurotech companies keep unrestricted access to users’ neural data
Source: Neurorights Foundation
4
states with a neural-data law
0
federal laws protecting neural data
Source: Future of Privacy Forum
Why now

The patents are filed. The companies are funded. The law is not ready.

Filed

PatentVest counts 2,160 brain-computer interface patent families held by 664 organizations, 3,336 publications in all. The earliest document we cite was granted in 1976. The most recent, published in 2024, is titled "Non-invasive mind reading using coherent radio waves."

Funded

UNESCO reports $33.2B invested in neurotechnology between 2010 and 2020. PatentVest projects a $400B US market. Neuralink has filed trademarks for Telepathy, Blindsight, and Telekinesis.

Unregulated

4 states have passed neural-data laws. There is no federal law. The Neurorights Foundation found that 29 of 30 consumer neurotech companies it reviewed keep unrestricted access to their users' neural data.

Every figure on this page is listed with its source on the Sources page.

Recipients

The 49 companies that receive your notice

Four layers, from implants to the platform companies that could put a brain sensor in an earbud. Each company is named for a documented reason. Open a layer to read it.

Layer 1: Invasive and implantable brain-computer interfaces

18 companies

Companies whose devices place electrodes in, on, or inside the vessels of the brain, through surgery or endovascular delivery.

  • Synchron Health Inc. Stentrode endovascular brain-computer interface; 118 patent documents in its portfolio. Delaware
  • Paradromics, Inc. Connexus direct data interface for speech decoding; 28 patent documents. Delaware
  • Precision Neuroscience Corp. Layer 7 cortical interface with FDA 510(k) clearance; 80 patent documents. Delaware
  • Blackrock Microsystems, Inc. Utah Array, implanted in human subjects since 2004; roughly 50 patents. Utah
  • Neuralink Corp. N1 brain implant; 87 patent documents. Holds USPTO trademark filings for Telepathy, Blindsight and Telekinesis (March 2025). Nevada (re-domesticated from Delaware, February 8, 2024) · registry lookup pending
  • NeuroPace, Inc. PatentVest IP leader FDA-approved RNS System, an implant that records brain activity continuously. Named an IP leader in the PatentVest 2025 report. Delaware · NPCE
  • Axoft, Inc. Soft polymer brain probes; Harvard spinout. Delaware
  • Motif Neurotech, Inc. Wireless neuromodulation implant. Delaware
  • Science Corporation PRIMA retinal implant (results published in NEJM, 2025) and optogenetic vision restoration; $177M raised. Delaware
  • Cognixion Corporation PatentVest IP leader ONE Axon brain-computer interface with FDA Breakthrough Device designation. PatentVest IP leader. Delaware
  • Neurolutions, Inc. PatentVest IP leader FDA-cleared IpsiHand stroke rehabilitation BCI. PatentVest IP leader. Missouri
  • Reach Neuro, Inc. Spinal stimulation brain-computer interface. Delaware
  • Merge Labs, Inc. Brain-computer interface company reported to have raised $250M, with OpenAI backing. Delaware
  • Forest Neurotech, LLC Implantable neural technology; shares founders with Merge Labs. Delaware
  • Subsense, Inc. Nanoparticle-based brain-computer interface; Palo Alto; $10M seed round. Delaware
  • Cala Health, Inc. Bioelectronic medicine wearables that read and stimulate peripheral nerves. Delaware
  • Medtronic plc Deep brain stimulation systems and neural interface products. Ireland · MDT · registry lookup pending
  • Cortical Labs Pty Ltd Biological computing built on living human neurons. Australia · served at headquarters

Layer 2: Consumer neural devices

14 companies

EEG, fNIRS and neural EMG devices worn on the body: headbands, headphones, earbuds and wristbands that capture brain or nerve signals without surgery.

  • EMOTIV Inc. EPOC, Insight and MN8 EEG headsets. A Chilean court ordered deletion of a customer’s neural data in 2023. Delaware
  • InteraXon Inc. (Muse) Consumer EEG meditation headband. Canada · served at headquarters
  • Neurable Inc. PatentVest IP leader MW75 Neuro headphones with embedded EEG electrodes. PatentVest IP leader. Delaware
  • NeuroSky, Inc. Consumer EEG chipsets licensed into third-party devices. California
  • OpenBCI, Inc. Open-source EEG hardware. Delaware
  • Kernel (The Kernel Company) PatentVest IP leader Kernel Flow fNIRS neuroimaging headset; founded by Bryan Johnson; $158M raised. PatentVest IP leader. Not yet located in state registries · registry lookup pending
  • Advanced Brain Monitoring, Inc. Wearable EEG systems. California
  • Thync Global, Inc. Neurostimulation wearable pods. Delaware
  • Pison Technology, Inc. Neural EMG gesture control wristbands; Department of Defense contracts. Delaware
  • g.tec medical engineering GmbH Brain-computer interface systems for research and clinical use. Austria · served at headquarters
  • Brain Products GmbH EEG research systems. Germany · served at headquarters
  • Bitbrain Technologies S.L. Business-to-business EEG systems. Spain · served at headquarters
  • Flow Neuroscience AB Brain stimulation headset marketed for depression. Sweden · served at headquarters
  • Cerelog Inc. (BrainBit) Consumer EEG and neurofeedback headbands; formerly BrainBit. New York

Layer 3: Large technology companies holding neural patents

9 companies

Platform companies with filed or granted patents that describe reading neural signals through everyday consumer devices.

  • Meta Platforms, Inc. Acquired CTRL-Labs; ships the Neural Band EMG wristband; holds an in-ear EEG patent; published Brain2Qwerty (February 2025) and TRIBE v2 (March 2026) neural decoding research. Delaware · META
  • Apple Inc. Patent filing describing EEG sensing through earbuds. California · AAPL · registry lookup pending
  • Samsung Electronics Brain-sensor wearable research; also publishes 6G integrated sensing and communication research. Served once, covering both product scopes. New York (US subsidiary)
  • Panasonic PatentVest IP leader 33 brain-computer interface patents; named an IP leader in the PatentVest 2025 report. Japan (US subsidiary)
  • Nvidia Corporation Announced partnership with Synchron; supplies the GPU infrastructure used for neural decoding. Delaware · NVDA
  • Alphabet Inc. (Google) DeepMind neural research; multiple biosignal patents. Delaware · GOOGL
  • Amazon.com, Inc. Alexa biometric patents; Halo band body monitoring. Delaware · AMZN
  • Microsoft Corporation New Assignee on WO2020060606A1, "Cryptocurrency system using body activity data," which names brain waves as an input signal. Washington · MSFT
  • Sony Corporation New 2006 patent filing for a neural interface using radio waves; sells earbuds, WH-series headphones and PSVR2 headsets. Japan (US subsidiary in New York) · SONY

Layer 4: International BCI developers

8 companies

Brain-computer interface companies headquartered outside the United States that sell into, publish in, or file patents covering the US market.

  • INBRAIN Neuroelectronics S.L. Graphene neural interfaces. Spain · served at headquarters
  • CorTec GmbH Brain Interchange implant; first-in-human study in 2025. Germany · served at headquarters
  • MindMaze SA Digital neurotherapeutics. Switzerland · served at headquarters
  • Neurosoft Bioelectronics Soft neural implants; partnered with Science Corporation. Switzerland · served at headquarters
  • Zhejiang Qiangnao Technology (BrainCo) Largest Chinese BCI company by funding, $286M raised. China (US office in Somerville, Massachusetts) · served at headquarters
  • Gestala Ultrasound-based brain-computer interface. China · served at headquarters
  • NeuroXess Invasive brain-computer interface; shares a founder with Gestala. China · served at headquarters
  • Beijing Xinzhida Neurotechnology Chinese neurotechnology developer. China · registry lookup pending

Companies marked "registry lookup pending" receive notice at their published headquarters address until the registered agent record is confirmed. Full detail on the Companies page.

The notice

What your notice says

It refuses consent, in advance

The notice states that you, by name and state of residence, do not consent to the collection, recording, decoding, inference, storage, transfer, or sale of your neural data, or of data derived from it, by any technology the recipient may deploy in future. It asks the recipient to record that refusal.

It names the technology by patent number

All 20 patents on the Patents page are cited by number so that the recipient cannot later say it did not know which technology the refusal covered.

It goes to the registered agent

Each notice is addressed to the company's registered agent for service, the address every state requires a company to keep for receiving formal correspondence, and sent by certified mail with tracking.

It carries a unique identifier

Every notice has an ID in the form BS-2026-04-00001 that ties it to the master index, the proof of service, and your delivery archive.

Your record

Seven layers of proof

A notice only matters if you can prove it was sent, received, and kept. Your delivery archive holds all of it.

  1. The notice itself

    A copy of each notice as delivered, in your name, with its unique ID.

  2. Master index

    Every recipient, address, and notice ID in one document.

  3. Proof of service

    The service record for each recipient in the batch.

  4. Certified mail tracking

    USPS tracking numbers and delivery confirmations for every item.

  5. Notarized affidavit of mailing

    A sworn statement that the batch was mailed as described.

  6. Supplementary email

    Where a company publishes a privacy contact address, a copy of the notice is also sent there.

  7. Archive access log

    A record of when your delivery archive was created and accessed.

How the order and delivery process works, step by step: How it works.

Order

$49 for Brain Shield. $79 with Signal Shield.

Brain Shield covers the companies building brain-reading devices. Signal Shield covers the infrastructure for sensing the body through the air: 6G equipment makers, carriers, tower owners, DARPA N3 contractors, university research boards, and the FCC. The bundle covers all 82 recipients.

Brain Shield
$49
  • Formal written notice to 49 companies across 4 layers
  • 20 patents cited by number in every notice
  • Certified mail to each registered agent
  • Your permanent delivery archive
Buy Brain Shield for $49 Ordering opens at launch.
Brain + Signal Bundle
$79
  • Both notice sets: 82 recipients in one order
  • Saves $19 against buying separately
  • One delivery archive covering every recipient
  • Implants to towers in a single record
Buy Brain + Signal Bundle for $79 Ordering opens at launch.
Signal Shield
$49
  • Formal written notice to 33 entities across 5 layers
  • 6 remote-sensing patents cited on this site, more in the notice
  • Includes the FCC as regulatory co-recipient
  • Your permanent delivery archive
Buy Signal Shield for $49 Ordering opens at launch.

What Brain Shield is not

Brain Shield is pre-emptive. It refuses consent to technology that companies have patented, funded, or published but have not deployed to the public. It is not a response to anything happening to you now, it is not legal advice, and it does not promise a legal outcome. Ediflo.AI, LLC is not a law firm. What we deliver is a notice, an address, a date, and the proof.