Quantum Blockchain Faces Final Patent Rejection from USPTO

Quantum Blockchain Technologies PLC announced a final rejection of its US patent application for the ASIC Ultra Boost technology by the USPTO. The rejection was based on prior documents, including a thesis by inventor Rahul Naik and a paper by his supervisor, Dr. Nicolas Courtois. The company believes the rejection pertains to the breadth of the claims rather than the novelty of the technology. Quantum Blockchain plans to respond formally by June 19, 2026, and has scheduled an interview with the patent examiner for April 20, 2026. The ASIC Ultra Boost technology aims to enhance cryptographic hashing efficiency in Bitcoin mining. Despite the rejection, shares in Quantum Blockchain rose by 5.3% following the announcement. The company is working closely with patent attorneys to refine its claims and formulate a response strategy.

Key Points: • Quantum Blockchain's patent application for ASIC Ultra Boost received a final rejection from the USPTO. • The rejection is based on prior art documents, not on the novelty of the technology itself. • The company plans to respond to the rejection and has an interview scheduled with the patent examiner.