- Quantum Blockchain Technologies
- 01 April 2026 10:47:09
Source: Sharecast
The AIM-traded company said the rejection related to US patent application 18/696,073 and followed a detailed report from its US patent attorneys.
It said the examiner’s objections were based on a combination of prior art documents, including a thesis by Rahul P Naik, US patent application US2009/0262925 A1, and a paper by Dr Nicolas Courtois referenced for certain dependent claims.
Quantum noted that Naik is the inventor of the ASIC Ultra Boost technology underpinning the application, while Courtois was his former academic supervisor, and that the application explicitly referenced Naik’s prior work.
Based on its initial review, the company said the examiner’s concerns primarily related to the breadth of the patent claims rather than the novelty of the underlying technology, adding that it believed there remained a viable route forward through refining the scope of the claims.
The company confirmed that its US patent attorneys had scheduled an interview with the examiner on 20 April and were preparing submissions ahead of the meeting.
It said the formal deadline to respond to the final office action would be 19 June, with the response expected to include amended claims or further technical arguments.
Quantum reiterated that a final rejection is a common stage in US patent prosecution and said it would provide further updates as appropriate.
At 0959 BST, shares in Quantum Blockchain Technologies were up 5.05% at 0.5p.
Reporting by Josh White for Sharecast.com.
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