G07C 2009/00238
The transmittted data signal containing a code which is changed
Official title: {the transmittted data signal containing a code which is changed}
G07C2009/00238 (The transmittted data signal containing a code which is changed) appears on 182 US grants and 123 published applications in this corpus.
Search patents in G07C- Granted patents
- 182
- Published applications
- 123
- Assignees
- 104
- Inventors
- 271
- Latest grant
- 28 Jul 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1986 | 1 | 0 |
| 1987 | 1 | 0 |
| 1988 | 1 | 0 |
| 1989 | 3 | 0 |
| 1990 | 3 | 0 |
| 1991 | 0 | 0 |
| 1992 | 4 | 0 |
| 1993 | 1 | 0 |
| 1994 | 4 | 0 |
| 1995 | 3 | 0 |
| 1996 | 9 | 0 |
| 1997 | 10 | 0 |
| 1998 | 12 | 0 |
| 1999 | 12 | 0 |
| 2000 | 11 | 0 |
| 2001 | 7 | 1 |
| 2002 | 1 | 5 |
| 2003 | 0 | 6 |
| 2004 | 3 | 8 |
| 2005 | 5 | 5 |
| 2006 | 7 | 1 |
| 2007 | 1 | 4 |
| 2008 | 2 | 4 |
| 2009 | 5 | 4 |
| 2010 | 1 | 0 |
| 2011 | 2 | 6 |
| 2012 | 4 | 3 |
| 2013 | 4 | 3 |
| 2014 | 2 | 0 |
| 2015 | 2 | 6 |
| 2016 | 4 | 5 |
| 2017 | 2 | 4 |
| 2018 | 5 | 1 |
| 2019 | 7 | 11 |
| 2020 | 5 | 7 |
| 2021 | 9 | 10 |
| 2022 | 4 | 6 |
| 2023 | 9 | 12 |
| 2024 | 8 | 4 |
| 2025 | 5 | 4 |
| 2026 | 3 | 3 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Server device, method, and program28 Jul 2026US 12,694,737 B2Bitkey Inc.
- Method and apparatus to facilitate transmission of an encrypted rolling code17 Feb 2026US 12,556,387 B2The Chamberlain Group, Inc.
- Modifying access control permissions10 Feb 2026US 12,548,391 B2Videx, Inc.
- Vehicular digital key system, vehicular digital key management method, vehicular device, and mobile terminal25 Nov 2025US 12,479,400 B2Denso Corporation
- Multi-channel signaling for a barrier operator system11 Nov 2025US 12,469,346 B2GMI Holdings, Inc.
- Method for commissioning an electromechanical locking device4 Jun 2026US 2026/0155005 A1Dormakaba Schweiz AG
- Facial recognition locker bank16 Apr 2026US 2026/0105794 A1Smarte Carte, Inc.
- Multi-channel signaling for a barrier operator system26 Feb 2026US 2026/0057718 A1GMI Holdings, Inc.
- Secure transport container4 Sep 2025US 2025/0278968 A1Motogo, LLC
- Multi-channel signaling for a barrier operator system5 Jun 2025US 2025/0182546 A1GMI Holdings, Inc.
Most cited
By later US patents
- Pseudorandom number generation and cryptographic authentication456US 5,363,448 AUnited Technologies Automotive, Inc. · 1994
- Method and apparatus for inhibiting unauthorized access to or utilization of a protected device356US 6,130,621 ARSA Security Inc. · 2000
- Security system having randomized synchronization code after power up274US 5,680,131 ANational Semiconductor Corporation · 1997
- Advanced automotive automation and security system269US 5,534,845 A1996
- Trainable transceiver capable of learning variable codes236US 5,661,804 APrince Corporation · 1997