G09C 1/02
Apparatus or methods whereby a given sequence of signs: by using a
Official title: by using a ciphering code in chart form
G09C1/02 (Apparatus or methods whereby a given sequence of signs: by using a) appears on 21 US grants and 32 published applications in this corpus.
Search patents in G09C- Granted patents
- 21
- Published applications
- 32
- Assignees
- 17
- Inventors
- 40
- Latest grant
- 3 Feb 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 2002 | 0 | 5 |
| 2003 | 0 | 0 |
| 2004 | 1 | 0 |
| 2005 | 1 | 3 |
| 2006 | 3 | 4 |
| 2007 | 0 | 1 |
| 2008 | 0 | 2 |
| 2009 | 0 | 0 |
| 2010 | 3 | 0 |
| 2011 | 0 | 2 |
| 2012 | 1 | 0 |
| 2013 | 0 | 0 |
| 2014 | 0 | 0 |
| 2015 | 0 | 1 |
| 2016 | 1 | 2 |
| 2017 | 0 | 1 |
| 2018 | 0 | 0 |
| 2019 | 1 | 0 |
| 2020 | 0 | 3 |
| 2021 | 1 | 4 |
| 2022 | 3 | 0 |
| 2023 | 2 | 2 |
| 2024 | 1 | 1 |
| 2025 | 2 | 1 |
| 2026 | 1 | 0 |
By publication year. 2026 runs to 8 Oct.
Recent patents
- Authentication device, authentication method, and recording medium3 Feb 2026US 12,542,674 B2NEC Platforms, Ltd.
- Method for encrypting data by means of matrix operations2 Dec 2025US 12,489,604 B2
- Diversification of instruction set encodings to protect software18 Nov 2025US 12,476,810 B2NXP B. V.
- Steganography method19 Nov 2024US 12,147,550 B2Defense Agency for Technology and Quality
- Registration device, server device, searchable encryption system, and searchable encryption method28 Nov 2023US 11,831,769 B2Mitsubishi Electric Corporation
- Diversification of instruction set encodings to protect software8 May 2025US 2025/0150272 A1NXP B. V.
- Authentication device, authentication method, and recording medium3 Oct 2024US 2024/0333491 A1NEC Platforms, Ltd.
- Method for encrypting data by means of matrix operations23 Nov 2023US 2023/0379137 A1
- Steganography method2 Mar 2023US 2023/0066458 A1Defense Agency for Technology and Quality
- Document Management Cryptography9 Sep 2021US 2021/0281393 A1
Most cited
By later US patents
- Denial cryptography based on graph theory34US 6,823,068 B12004
- Data encryption system9US 6,950,518 B2Asier Technology Corporation · 2005
- Data decryption system5US 7,016,497 B2Asier Technology Corporation · 2006
- Method of encrypting and transmitting data and system for transmitting encrypted data5US 8,275,997 B2Encryption Solutions, Inc. · 2012
- Managing security in a system on a chip (SOC) that powers down a secure processor4US 9,479,331 B2Apple Inc. · 2016