Neural Interface System

Provided herein are neural interface systems for a patient, the systems comprising an implantable sensor device and an external processing device. The implantable sensor device comprises: an implantable lead assembly for implantation above the skull and below the skin of the patient, and for recording physiologic parameter information of the patient; and an implantable transmitter for receiving the physiologic parameter information from the implantable lead assembly and for transmitting patient data that is based on the physiologic parameter information. The external processing device receives the patient data from the implantable transmitter. Methods of provided a neural interface are also described.

The abstract as published by the patent office, from US2021267523A1. It describes the invention; it is not a statement of what is protected.

• Interface and electrodes

  Electrodes and arrays · Optical interfaces

• Packaging

  Packaging and hermeticity

• Telemetry

  Wireless telemetry

• Signal processing

  Signal processing

What the filing appears to be about, read by published rules from its title, abstract and classification codes (A61B2560/063, A61B2562/182, A61B5/002, A61B5/0031, A61B5/0075). The claims define what a patent protects, and they are not read here.

Interface and electrodes

Everything downstream works with what the contacts pick up. Their number, size and distance from the neurons set the ceiling on the signal. The problem behind it: more contacts, closer to neurons, that still record after years in tissue that reacts to them.

Packaging

Body fluid destroys unprotected electronics. An implant meant to last has to stay sealed for years while passing every channel through its wall. The problem behind it: a seal that lasts as long as the patient needs it, at a size that leaves room for the channels.

Telemetry

Thousands of channels produce more data than a low-power radio can carry raw, so what is sent, and how, decides what the system can use. The problem behind it: high data rates at low power through tissue, reliably and securely.

Why the layer matters to the field, not a judgement of this filing. A patent family shows that protection was sought. It does not show that the technology was built, is used in a product, or works in people. The whole stack

One invention, published 6 times in 4 offices. Each publication opens in Espacenet.

• CanadaCA3098311A17 Nov 2019
• International (PCT)a route to several countries, not a countryWO2019211314A17 Nov 2019
• European Patent Officea route to several countries, not a countryEP3787735A110 Mar 2021EP3787735B128 Jan 2026 · grant
• United StatesUS2021267523A12 Sep 2021US20250311954A19 Oct 2025

1. 1 May 2018First filingEarliest priority, at United States. The family is counted in this year.
2. 30 Apr 2019ApplicationsFiled at Canada, International (PCT), European Patent Office, United States.
3. 7 Nov 2019First publicationCA3098311A1, Canada.
4. 3 Jun 2021Owner recordedUnited States, on US2021267523A1: assignment; owner named: WYSS CENTER FOR BIO AND NEURO ENGINEERING, SWITZERLAND.
5. 18 Jun 2025ApplicationFiled at United States.
6. 12 Nov 2025Office recordUnited States, on US2021267523A1: information on status: application discontinuation.
7. 28 Jan 2026Grant publishedEP3787735B1, European Patent Office.
8. 6 Oct 2026Office recordEuropean Patent Office, on EP3787735A1: lapsed in a contracting state [announced via postgrant information from national office to epo] (AT, BG, ES, FI, GR, HR, IS, LT, LV, NL, NO, PL, PT, RS, SE, SM).

Dates as the offices published them. Office records are in the offices' own words and are a selection: refusals, lapses and withdrawals, and records that name an owner. Each concerns one member of the family, not the family as a whole, and another member in the same office may stand. Whether a patent is in force today is not assessed.

• Bibliographic data, family members and office records: European Patent Office, Open Patent Services (the DOCDB and INPADOC databases), read 7 Oct 2026.
• The record itself, with its claims and description: US2021267523A1 in Espacenet
• Counted as a BCI patent family: uses the field's wording; classified G06F3/015 (input arrangements based on nervous-system activity); describes neural hardware or methods without naming the field; cites a family already accepted. How families are found and judged