Graphene bio-device for electrotherapy

A graphene bio-device for electrotherapy, includes: a flexible substrate; An electrode made of graphene on the flexible substrate; and an insulation layer on the graphene electrode; wherein the graphene bio-device comprises electrodes for ground, reference, recording and stimulation, wherein the graphene bio-device is measured corticography with low noise and alleviated seizure signals successfully by imposing electrical stimulation.

The abstract as published by the patent office, from US2019224474A1. It describes the invention; it is not a statement of what is protected.

• Interface and electrodes

  Electrodes and arrays · Materials and coatings

• Stimulation

  Stimulation · Closed loop

What the filing appears to be about, read by published rules from its title, abstract and classification codes (A61B2562/0209, A61B2562/028, A61B2562/125, A61B2562/164, A61B5/293). 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.

Stimulation

Restoring sensation, sight or movement needs information going in, and a therapy that adapts needs to sense and stimulate at once. The problem behind it: evoking a precise, stable effect without damaging tissue or electrodes, and without blinding the recording.

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 4 times in 2 offices. Each publication opens in Espacenet.

• United StatesUS2019224474A125 Jul 2019US10918856B216 Feb 2021 · grant
• South KoreaKR20190089423A31 Jul 2019KR102173025B12 Nov 2020 · grant

1. 22 Jan 2018First filingEarliest priority, at South Korea. The family is counted in this year.
2. 10 Jul 2018ApplicationFiled at United States.
3. 10 Jul 2018Owner recordedUnited States, on US2019224474A1: assignment; owner named: INDUSTRY-ACADEMIC COOPERATION FOUNDATION, YONSEI U.
4. 10 Jul 2018Owner recordedUnited States, on US2019224474A1: assignment; owner named: INCHEON UNIVERSITY INDUSTRY ACADEMIC COOPERATION F.
5. 10 Jul 2018Owner recordedUnited States, on US2019224474A1: assignment; owner named: INCHEON UNIVERSITY INDUSTRY ACADEMIC COOPERATION FOUNDATION, KOREA, REPUBLIC OF.
6. 10 Jul 2018Owner recordedUnited States, on US2019224474A1: assignment; owner named: INDUSTRY-ACADEMIC COOPERATION FOUNDATION, YONSEI UNIVERSITY, KOREA, REPUBLIC OF.
7. 25 Jul 2019First publicationUS2019224474A1, United States.
8. 23 Jan 2020Owner recordedUnited States, on US2019224474A1: assignment; owner named: GBRAIN INC., KOREA, REPUBLIC OF.
9. 24 Apr 2020Office recordSouth Korea, on KR20190089423A: notification of reason for final refusal.
10. 2 Nov 2020Grant publishedKR102173025B1, South Korea.
11. 16 Feb 2021Grant publishedUS10918856B2, United States.

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

Gbrain · 13 families identified

Use case

Neuromodulation

• 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: US2019224474A1 in Espacenet
• Counted as a BCI patent family: classified A61B5/293 (invasive electrodes for brain recording); filed by 주식회사 지브레인, 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