A61B 5/0816
Measuring devices for examining respiratory frequency
Official title: {Measuring devices for examining respiratory frequency (measuring frequency of electric signals G01R23/00)}
A61B5/0816 (Measuring devices for examining respiratory frequency) appears on 4,199 US grants and 6,901 published applications in this corpus.
Search patents in A61B- Granted patents
- 4,199
- Published applications
- 6,901
- Assignees
- 2,059
- Inventors
- 10,703
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 5 | 0 |
| 1977 | 2 | 0 |
| 1978 | 3 | 0 |
| 1979 | 2 | 0 |
| 1980 | 4 | 0 |
| 1981 | 5 | 0 |
| 1982 | 3 | 0 |
| 1983 | 1 | 0 |
| 1984 | 4 | 0 |
| 1985 | 3 | 0 |
| 1986 | 6 | 0 |
| 1987 | 4 | 0 |
| 1988 | 2 | 0 |
| 1989 | 3 | 0 |
| 1990 | 3 | 0 |
| 1991 | 6 | 0 |
| 1992 | 5 | 0 |
| 1993 | 3 | 0 |
| 1994 | 2 | 0 |
| 1995 | 1 | 0 |
| 1996 | 4 | 0 |
| 1997 | 4 | 0 |
| 1998 | 3 | 0 |
| 1999 | 8 | 0 |
| 2000 | 7 | 0 |
| 2001 | 10 | 6 |
| 2002 | 11 | 17 |
| 2003 | 14 | 22 |
| 2004 | 10 | 49 |
| 2005 | 14 | 61 |
| 2006 | 27 | 67 |
| 2007 | 22 | 76 |
| 2008 | 43 | 95 |
| 2009 | 28 | 94 |
| 2010 | 34 | 138 |
| 2011 | 58 | 141 |
| 2012 | 79 | 147 |
| 2013 | 100 | 186 |
| 2014 | 144 | 295 |
| 2015 | 132 | 335 |
| 2016 | 160 | 370 |
| 2017 | 226 | 480 |
| 2018 | 211 | 479 |
| 2019 | 368 | 574 |
| 2020 | 350 | 514 |
| 2021 | 388 | 577 |
| 2022 | 399 | 525 |
| 2023 | 368 | 516 |
| 2024 | 355 | 468 |
| 2025 | 340 | 401 |
| 2026 | 215 | 268 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
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Most cited
By later US patents
- Signal processing apparatus1,538US 6,081,735 AMasimo Corporation · 2000
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- Apparatus for detecting human physiological and contextual information1,245US 7,020,508 B2BodyMedia, Inc. · 2006
- Signal processing apparatus1,192US 6,650,917 B2Masimo Corporation · 2003