PR Newswire
LONDON, United Kingdom, April 01
1 April 2026
Quantum Blockchain Technologies Plc
(«QBT» or «the Company»)
Update on US Patent Application – ASIC Ultra Boost
Further to the Company’s announcement of 23 March 2026, Quantum Blockchain
Technologies Plc (AIM: QBT) provides an update in relation to its US patent
application titled «ASIC Ultra Boost» (US Patent Application No. 18/696,073)
which has received a «Final Rejection» from the United States Patent and
Trademark Office («USPTO»), together with a detailed report from its US patent
attorneys.
As previously disclosed, the issuance of a «Final Rejection» is a standard step
in the US patent examination process, and such rejections are frequently
overcome through continued patent prosecution.
The Examiner has raised an objection based on a combination of asserted prior
art documents, including a thesis by Rahul P. Naik and a newly cited US patent
application (US2009/0262925 A1), with additional reference to a paper by Dr
Nicolas Courtois for certain dependent claims.
Mr Naik is the inventor of the ASIC Ultra Boost which constitutes the QBT’s
patent application, and Dr Courtois was his former supervisor in the MSc
Information Security programme within the Department of Computer Science at
University College London. The patent application explicitly references Mr
Naik’s prior work.
Based on an initial review, the Company understands that the Examiner’s concerns
primarily relate to the breadth of the patent application’s claims, rather than
a fundamental lack of novelty of the underlying technology. Accordingly, the
Company believes that there remains a viable pathway forward through further
refinement of the claim scope.
The Company confirms that its US patent attorneys have already scheduled an
interview with the USPTO Examiner on 20 April 2026, and preparations are
underway to support this discussion. Comments are expected to be submitted in
advance of the interview.
The deadline for responding formally to the Final Office Action is 19 June 2026.
The Company is working closely with its patent attorneys to formulate a robust
response strategy, which may include amended claims and/or further technical
arguments.
The Company reiterates that the issuance of a Final Office Action is a common
step in the US patent examination process, and that such rejections are
frequently overcome through continued prosecution.
QBT will provide further updates as appropriate.
This announcement contains inside information for the purposes of Article 7 of
the Market Abuse Regulation (EU) 596/2014 as it forms part of UK domestic law by
virtue of the European Union (Withdrawal) Act 2018 («MAR»), and is disclosed in
accordance with the Company’s obligations under Article 17 of MAR.
– ends –
For further information please contact:
Quantum Blockchain Technologies Plc+39 335 296573
Francesco Gardin, CEO and Executive Chairman
SP Angel Corporate Finance(Nominated Adviser & Broker)+44 (0) 20 3470 0470
Caroline Rowe / Devik Mehta
Leander(Financial PR)+44 (0) 7795 168 157
Christian Taylor-Wilkinson
About Quantum Blockchain Technologies Plc
QBT (AIM: QBT) is a London Stock Exchange AIM listed Research & Development and
investing company focused on an intensive R&D programme to disrupt the
Blockchain Technologies sector which includes, cryptocurrency mining and other
advanced blockchain applications. The primary goal of the R&D programme is to
develop Bitcoin mining tools and techniques, via its technology-driven approach,
which the Company believes will significantly outperform existing market
practices.
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