Changeflow GovPing Telecom & Technology Quantum State Transmission Method Patent
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Quantum State Transmission Method Patent

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Published March 18th, 2026
Detected March 23rd, 2026
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Summary

The European Patent Office has published patent application EP4711989A1 by the Korea Institute of Science & Technology Information. The patent describes a method for transmitting quantum states, potentially impacting future quantum communication technologies.

What changed

The European Patent Office (EPO) has published patent application EP4711989A1, filed by the Korea Institute of Science & Technology Information, detailing a method for transmitting quantum states. The described method involves generating, encoding, and transmitting quantum states, including the injection of uncorrectable errors, to a receiving node. This patent application pertains to advancements in quantum communication and potentially secure data transmission.

This publication is primarily an informational notice regarding a granted patent. There are no immediate compliance obligations or deadlines for regulated entities. However, companies involved in quantum computing, cryptography, or advanced telecommunications may wish to review the patent for potential implications on their research and development or intellectual property strategies.

Source document (simplified)

← EPO Patent Bulletin

METHOD FOR TRANSMITTING QUANTUM STATE, METHOD FOR VERIFYING QUANTUM STATE, AND SYSTEM THEREFOR

Publication EP4711989A1 Kind: A1 Mar 18, 2026

Applicants

Korea Institute of Science & Technology
Information

Inventors

Sohn, Il Kwon, Kim, Bo Seon, Bae, Kwang Il, Song, Woo Yeong, Lee, Chan Kyun, Lee, Won Hyuk

Abstract

There is provided a method for transmitting a quantum state, performed by a computing device. The method may comprise generating a second quantum state using a first quantum state and a dummy state, encoding the second quantum state, generating a third quantum state by injecting an uncorrectable error into the encoded second quantum state and transmitting the third quantum state to a receiving node.

IPC Classifications

G06N 10/70 20220101AFI20260209BHEP H04L 9/08 20060101ALI20260209BHEP

Designated States

AL, AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HR, HU, IE, IS, IT, LI, LT, LU, LV, MC, ME, MK, MT, NL, NO, PL, PT, RO, RS, SE, SI, SK, SM, TR

View original document →

Named provisions

METHOD FOR TRANSMITTING QUANTUM STATE METHOD FOR VERIFYING QUANTUM STATE SYSTEM THEREFOR

Classification

Agency
EPO
Published
March 18th, 2026
Instrument
Notice
Legal weight
Non-binding
Stage
Final
Change scope
Minor
Document ID
EP4711989A1

Who this affects

Activity scope
Quantum Communication
Geographic scope
European Union EU

Taxonomy

Primary area
Intellectual Property
Operational domain
IT Security
Topics
Quantum Computing Cryptography

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