G07C 9/20
Involving the use of a pass
Official title: involving the use of a pass
G07C9/20 (Involving the use of a pass) appears on 7,213 US grants and 8,022 published applications in this corpus.
Search patents in G07C- Granted patents
- 7,213
- Published applications
- 8,022
- Assignees
- 2,792
- Inventors
- 12,685
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 18 | 0 |
| 1977 | 14 | 0 |
| 1978 | 14 | 0 |
| 1979 | 17 | 0 |
| 1980 | 26 | 0 |
| 1981 | 21 | 0 |
| 1982 | 12 | 0 |
| 1983 | 21 | 0 |
| 1984 | 21 | 0 |
| 1985 | 35 | 0 |
| 1986 | 34 | 0 |
| 1987 | 43 | 0 |
| 1988 | 39 | 0 |
| 1989 | 64 | 0 |
| 1990 | 50 | 0 |
| 1991 | 51 | 0 |
| 1992 | 53 | 0 |
| 1993 | 56 | 0 |
| 1994 | 45 | 0 |
| 1995 | 68 | 0 |
| 1996 | 58 | 0 |
| 1997 | 60 | 0 |
| 1998 | 84 | 0 |
| 1999 | 82 | 0 |
| 2000 | 73 | 0 |
| 2001 | 69 | 46 |
| 2002 | 88 | 211 |
| 2003 | 91 | 237 |
| 2004 | 106 | 283 |
| 2005 | 110 | 275 |
| 2006 | 173 | 324 |
| 2007 | 149 | 308 |
| 2008 | 150 | 310 |
| 2009 | 152 | 240 |
| 2010 | 198 | 222 |
| 2011 | 197 | 153 |
| 2012 | 185 | 187 |
| 2013 | 162 | 176 |
| 2014 | 168 | 246 |
| 2015 | 199 | 405 |
| 2016 | 270 | 380 |
| 2017 | 388 | 432 |
| 2018 | 424 | 461 |
| 2019 | 440 | 527 |
| 2020 | 416 | 485 |
| 2021 | 393 | 483 |
| 2022 | 378 | 451 |
| 2023 | 393 | 373 |
| 2024 | 356 | 351 |
| 2025 | 310 | 267 |
| 2026 | 189 | 189 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- G07C 9/22In combination with an identity check of the pass holder3,240
- G07C 9/28The pass enabling tracking or indicating presence2,554
- G07C 9/27With central registration1,829
- G07C 9/29The pass containing active electronic elements605
- G07C 9/21Having a variable access code414
- G07C 9/215The system having a variable access-code259
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- Entry system and door control method1 Oct 2026US 2026/0296371 A1Honda Motor Co., Ltd.
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Most cited
By later US patents
- Methods for surveying dissemination of proprietary empirical data1,132US 5,862,260 ADigimarc Corporation · 1999
- Computer system linked by using information in data objects1,131US 6,122,403 ADigimarc Corporation · 2000
- Unforgeable personal identification system1,065US 4,993,068 AMotorola, Inc. · 1991
- Information management and security system1,052US 5,629,981 ATexas Instruments Incorporated · 1997
- Linking of computers based on optical sensing of digital data942US 6,311,214 B1Digimarc Corporation · 2001