H04L 9/0855
Involving additional nodes
Official title: {involving additional nodes, e.g. quantum relays, repeaters, intermediate nodes or remote nodes}
H04L9/0855 (Involving additional nodes) appears on 219 US grants and 290 published applications in this corpus.
Search patents in H04L- Granted patents
- 219
- Published applications
- 290
- Assignees
- 123
- Inventors
- 544
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 2004 | 0 | 1 |
| 2005 | 0 | 2 |
| 2006 | 0 | 2 |
| 2007 | 0 | 2 |
| 2008 | 1 | 4 |
| 2009 | 3 | 6 |
| 2010 | 4 | 5 |
| 2011 | 2 | 5 |
| 2012 | 6 | 8 |
| 2013 | 3 | 2 |
| 2014 | 9 | 10 |
| 2015 | 4 | 2 |
| 2016 | 10 | 12 |
| 2017 | 12 | 6 |
| 2018 | 2 | 8 |
| 2019 | 11 | 8 |
| 2020 | 8 | 11 |
| 2021 | 9 | 23 |
| 2022 | 26 | 34 |
| 2023 | 20 | 36 |
| 2024 | 25 | 45 |
| 2025 | 38 | 31 |
| 2026 | 26 | 27 |
By publication year. 2026 runs to 8 Oct.
Recent patents
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- Systems and methods for practical quantum position-based key exchange1 Sep 2026US 12,726,342 B2JPMorgan Chase Bank, N. A.
- Operating a layered quantum networking environment with entanglement swap operations25 Aug 2026US 12,719,586 B2Aliro Technologies, Inc.
- System and method for network distribution of quantum entanglement18 Aug 2026US 12,712,643 B2AT&T Intellectual Property I, L. P.
- Quantum cryptography communication control device, quantum cryptography communication system, quantum cryptography communication control method, and computer program product10 Sep 2026US 2026/0270244 A1Kabushiki Kaisha Toshiba
- Key exchange system, qkd apparatus, hub apparatus, method, and program27 Aug 2026US 2026/0254623 A1NTT, Inc.
- Decision Engine Consistency Verification System27 Aug 2026US 2026/0254624 A1Bank of America Corporation
- Quantum key distribution system, transmitter, receiver and method20 Aug 2026US 2026/0246625 A1Telefonaktiebolaget LM Ericsson (publ)
- Key management device, quantum cryptography communication system, key management method, and computer program product13 Aug 2026US 2026/0238621 A1Kabushiki Kaisha Toshiba
Most cited
By later US patents
- Quantum cryptography apparatus112US 8,855,316 B2Qinetiq Limited · 2014
- Processing quantum information53US 9,663,358 B1Quantum Valley Investment Fund LP · 2017
- Quantum key distribution49US 9,692,595 B2Qinetiq Limited · 2017
- System and method for quantum based information transfer42US 9,270,385 B2The United States of America as represented by the Secretary of the Army · 2016
- Quantum cryptographic key distribution networks with untrusted switches37US 7,324,647 B1BBN Technologies Corp. · 2008