Codex Corporation
Maple Grove, MN, US· latest recorded location
Codex Corporation is named on 122 US grants and 15 published applications in this corpus. Its most frequent classification is H04L (Digital communication).
- Granted patents
- 122
- Published applications
- 15
- Inventors
- 107
- Granted in 2026 so far
- 0
- Most recent grant
- 28 Oct 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 1 | 0 |
| 1978 | 1 | 0 |
| 1979 | 1 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 5 | 0 |
| 1983 | 2 | 0 |
| 1984 | 4 | 0 |
| 1985 | 6 | 0 |
| 1986 | 7 | 0 |
| 1987 | 6 | 0 |
| 1988 | 4 | 0 |
| 1989 | 4 | 0 |
| 1990 | 8 | 0 |
| 1991 | 12 | 0 |
| 1992 | 10 | 0 |
| 1993 | 22 | 0 |
| 1994 | 12 | 0 |
| 1995 | 5 | 0 |
| 1996 | 1 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 1 |
| 2014 | 0 | 3 |
| 2015 | 2 | 1 |
| 2016 | 3 | 0 |
| 2017 | 0 | 0 |
| 2018 | 0 | 0 |
| 2019 | 0 | 0 |
| 2020 | 0 | 4 |
| 2021 | 1 | 1 |
| 2022 | 0 | 0 |
| 2023 | 1 | 3 |
| 2024 | 0 | 0 |
| 2025 | 3 | 1 |
| 2026 | 0 | 1 |
By publication year. 2026 runs to 8 Oct.
Technology areas
Share of 137 documents
- H04LDigital communication56
- G06FComputing and data processing21
- H03MCoding19
- G06QInformation and communication technology [ict] specially adapted for administrative, commercial, financial, managerial18
- G08BSignalling systems16
- H03LAutomatic control, starting, synchronisation or stabilisation of generators of electronic oscillations or11
- H03KPulse technique10
- H04BTransmission8
- G06VImage and video recognition7
- H04QSelecting7
Recent patents
- Systems and methods for increased correctional facility safety28 Oct 2025US 12,456,081 B2
- Officer safety using computer vision1 Apr 2025US 12,266,182 B2
- Inmate release verification21 Jan 2025US 12,205,405 B2
- Inmate compliance monitor7 Feb 2023US 11,574,317 B2
- Monitoring inmate movement with facial recognition19 Jan 2021US 10,896,321 B2
- Systems and methods for increased correctional facility safety14 May 2026US 2026/0134362 A1
- Surveillance by cooperative computer vision20 Feb 2025US 2025/0061721 A1
- Systems and methods for increased correctional facility safety19 Oct 2023US 2023/0334389 A1
- Inmate release verification19 Oct 2023US 2023/0334908 A1
- Officer safety using computer vision26 Jan 2023US 2023/0027643 A1
Most cited
By later US patents
- Method for prioritizing, selectively discarding, and multiplexing differing traffic type fast packets368US 5,231,633 A1993
- Lattice and trellis-coded quantization268US 5,297,170 A1994
- Dynamic encoding rate control minimizes traffic congestion in a packet network258US 5,115,429 A1992
- Testing the performance of a communication line between two modems using modem processor237US 4,918,623 A1990
- Device and method for implementing queueing disciplines at high speeds204US 5,268,900 A1993