Subcutaneous functional near-infrared spectroscopy

Apparatuses, systems, and methods are disclosed for subcutaneous functional near-infrared spectroscopy. An example apparatus includes a substrate and a device configured to be disposed under skin. The device includes emitters and light detectors disposed on the substrate. The emitters emit light that propagates a body part under skin and the light detectors detect changes in light absorption and scattering through the body part and provide fNIRS signals.

The abstract as published by the patent office, from US20250134426A1. It describes the invention; it is not a statement of what is protected.

• Interface and electrodes

  Electrodes and arrays · Optical interfaces

What the filing appears to be about, read by published rules from its title, abstract and classification codes (A61B2562/04, A61B2562/12, A61B5/0031, A61B5/0075, A61B5/0086). 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 3 times in 3 offices. Each publication opens in Espacenet.

• United StatesUS20250134426A11 May 2025
• International (PCT)a route to several countries, not a countryWO2025090729A11 May 2025
• European Patent Officea route to several countries, not a countryEP4798066A12 Sep 2026

1. 27 Oct 2023First filingEarliest priority, at United States. The family is counted in this year.
2. 23 Oct 2024ApplicationFiled at United States.
3. 24 Oct 2024ApplicationsFiled at International (PCT), European Patent Office.
4. 1 May 2025First publicationUS20250134426A1, United States.

Dates as the offices published them. Records of lapses, withdrawals and changes of owner have not been read for this family, and whether a patent is in force today is not assessed.

Organisation

Blackrock Neurotech · 14 families identified

Technology

Optical

• 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: US20250134426A1 in Espacenet
• Counted as a BCI patent family: classified A61B5/293 (invasive electrodes for brain recording); filed by Blackrock Microsystems, Inc., an organisation already in the graph; a hardware layer of the stack, filed by a company that builds interfaces; cites a family already accepted. How families are found and judged