A47G 29/1225
Signalling devices
Official title: {Signalling devices}
A47G29/1225 (Signalling devices) appears on 83 US grants and 83 published applications in this corpus.
Search patents in A47G- Granted patents
- 83
- Published applications
- 83
- Assignees
- 31
- Inventors
- 158
- Latest grant
- 4 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 0 | 0 |
| 1979 | 2 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 1 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 1 | 0 |
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 1 | 0 |
| 1996 | 0 | 0 |
| 1997 | 1 | 0 |
| 1998 | 0 | 0 |
| 1999 | 1 | 0 |
| 2000 | 3 | 0 |
| 2001 | 2 | 0 |
| 2002 | 2 | 3 |
| 2003 | 2 | 1 |
| 2004 | 1 | 3 |
| 2005 | 2 | 2 |
| 2006 | 1 | 2 |
| 2007 | 3 | 4 |
| 2008 | 0 | 2 |
| 2009 | 2 | 0 |
| 2010 | 2 | 2 |
| 2011 | 4 | 1 |
| 2012 | 1 | 0 |
| 2013 | 1 | 2 |
| 2014 | 1 | 1 |
| 2015 | 1 | 3 |
| 2016 | 1 | 2 |
| 2017 | 2 | 4 |
| 2018 | 5 | 5 |
| 2019 | 5 | 6 |
| 2020 | 5 | 9 |
| 2021 | 4 | 7 |
| 2022 | 5 | 6 |
| 2023 | 6 | 5 |
| 2024 | 7 | 5 |
| 2025 | 4 | 5 |
| 2026 | 2 | 3 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Aumano: Automatic Mail Notification System Using ESP-NOW Protocol17 Sep 2026US 2026/0272202 A1
- Smart Mailbox System and Method23 Jul 2026US 2026/0206992 A1
- Anti-Theft Mailbox Device2 Apr 2026US 2026/0090670 A1
- Smart office mailbox14 Aug 2025US 2025/0255424 A1King Faisal University
- Automatic notification system24 Jul 2025US 2025/0235023 A1
Most cited
By later US patents
- Status indicating system for indicating the deposit and withdrawal of items in a receptacle119US 6,028,517 APitney Bowes Inc. · 2000
- Smart parcel safe52US 10,039,401 B12018
- Enclosure illumination system46US 6,402,338 B1Mitzel Machining Inc. · 2002
- Smart mailbox37US 7,256,691 B22007
- Mail delivery indicator device33US 6,046,675 A2000