G08B 21/182
Level alarms
Official title: {Level alarms, e.g. alarms responsive to variables exceeding a threshold}
G08B21/182 (Level alarms) appears on 3,186 US grants and 3,758 published applications in this corpus.
Search patents in G08B- Granted patents
- 3,186
- Published applications
- 3,758
- Assignees
- 1,648
- Inventors
- 7,072
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 4 | 0 |
| 1977 | 1 | 0 |
| 1978 | 4 | 0 |
| 1979 | 0 | 0 |
| 1980 | 2 | 0 |
| 1981 | 3 | 0 |
| 1982 | 3 | 0 |
| 1983 | 7 | 0 |
| 1984 | 6 | 0 |
| 1985 | 11 | 0 |
| 1986 | 2 | 0 |
| 1987 | 19 | 0 |
| 1988 | 7 | 0 |
| 1989 | 14 | 0 |
| 1990 | 11 | 0 |
| 1991 | 12 | 0 |
| 1992 | 12 | 0 |
| 1993 | 9 | 0 |
| 1994 | 12 | 0 |
| 1995 | 4 | 0 |
| 1996 | 2 | 0 |
| 1997 | 9 | 0 |
| 1998 | 2 | 0 |
| 1999 | 2 | 0 |
| 2000 | 7 | 0 |
| 2001 | 6 | 1 |
| 2002 | 2 | 2 |
| 2003 | 1 | 4 |
| 2004 | 2 | 8 |
| 2005 | 3 | 13 |
| 2006 | 6 | 17 |
| 2007 | 3 | 5 |
| 2008 | 8 | 12 |
| 2009 | 5 | 14 |
| 2010 | 5 | 18 |
| 2011 | 14 | 21 |
| 2012 | 9 | 24 |
| 2013 | 19 | 62 |
| 2014 | 34 | 91 |
| 2015 | 76 | 165 |
| 2016 | 113 | 221 |
| 2017 | 208 | 278 |
| 2018 | 262 | 313 |
| 2019 | 287 | 362 |
| 2020 | 330 | 387 |
| 2021 | 310 | 365 |
| 2022 | 309 | 380 |
| 2023 | 327 | 288 |
| 2024 | 292 | 265 |
| 2025 | 233 | 229 |
| 2026 | 157 | 213 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
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Most cited
By later US patents
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- Medical gas alarm system279US 5,057,822 APuritan-Bennett Corporation · 1991
- Method and system for updating a medical device276US 8,595,607 B2Abbott Diabetes Care Inc. · 2013
- Systems and methods for automatically generating an escape route243US 9,898,912 B1State Farm Mutual Automobile Insurance Company · 2018