Medical electrode and arrangement thereof

The present invention relates to a medical electrode (100), including:a first layer (10) made of a first material having a first electrochemical potential window, especially a first charge injection limit, andat least one second layer (12) made of a second material having a second electrochemical potential window, especially a second charge injection limit,wherein the first layer (10) and the second layer (12) are located on a base substrate (14),wherein the second electrochemical potential window is lower than the first electrochemical potential window, andwherein the first layer (10) is provided on top of the second layer (12) and encapsulates the second layer (12), so that no electrical current directly flows from the second layer (12) toward a target tissue.

The abstract as published by the patent office, from US20240359003A1. It describes the invention; it is not a statement of what is protected.

• Interface and electrodes

  Electrodes and arrays · Peripheral interfaces

What the filing appears to be about, read by published rules from its title, abstract and classification codes (A61B2562/125, A61B5/263, A61N1/0456, A61N1/0472, A61N1/0496). 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.

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 9 times in 3 offices. Each publication opens in Espacenet.

• International (PCT)a route to several countries, not a countryWO2022258739A115 Dec 2022
• European Patent Officea route to several countries, not a countryEP4351706A117 Apr 2024EP4351706B121 Jan 2026 · grantEP4351706C021 Jan 2026EP4748313A227 May 2026EP4748313A35 Aug 2026
• United StatesUS20240359003A131 Oct 2024US12661500B223 Jun 2026 · grantUS20260284381A124 Sep 2026

1. 9 Jun 2021First filingEarliest priority, at European Patent Office. The family is counted in this year.
2. 9 Jun 2022ApplicationsFiled at International (PCT), European Patent Office, United States.
3. 15 Dec 2022First publicationWO2022258739A1, International (PCT).
4. 30 Nov 2023Owner recordedUnited States, on US20240359003A1: assignment; owner named: INBRAIN NEUROELECTRONICS SL, SPAIN.
5. 21 Jan 2026Grant publishedEP4351706B1, European Patent Office.
6. 27 May 2026ApplicationFiled at United States.
7. 23 Jun 2026Grant publishedUS12661500B2, United States.
8. 6 Oct 2026Office recordEuropean Patent Office, on EP4351706A1: lapsed in a contracting state [announced via postgrant information from national office to epo] (ES, GR, HR, IS, NO, PL, RS, 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.

Organisation

INBRAIN Neuroelectronics · 12 families identified

• 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: US20240359003A1 in Espacenet
• Counted as a BCI patent family: classified A61B5/293 (invasive electrodes for brain recording); filed by INBRAIN Neuroelectronics SL, an organisation already in the graph; a hardware layer of the stack, filed by a company that builds interfaces. How families are found and judged