A61B 5/0295
Using plethysmography, i.e. measuring the variations in the volume of a body
Official title: using plethysmography, i.e. measuring the variations in the volume of a body part as modified by the circulation of blood therethrough, e.g. impedance plethysmography
A61B5/0295 (Using plethysmography, i.e. measuring the variations in the volume of a body) appears on 1,074 US grants and 1,460 published applications in this corpus.
Search patents in A61B- Granted patents
- 1,074
- Published applications
- 1,460
- Assignees
- 585
- Inventors
- 2,259
- Latest grant
- 22 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 6 | 0 |
| 1977 | 2 | 0 |
| 1978 | 0 | 0 |
| 1979 | 3 | 0 |
| 1980 | 1 | 0 |
| 1981 | 1 | 0 |
| 1982 | 3 | 0 |
| 1983 | 0 | 0 |
| 1984 | 2 | 0 |
| 1985 | 1 | 0 |
| 1986 | 2 | 0 |
| 1987 | 4 | 0 |
| 1988 | 2 | 0 |
| 1989 | 4 | 0 |
| 1990 | 6 | 0 |
| 1991 | 2 | 0 |
| 1992 | 2 | 0 |
| 1993 | 2 | 0 |
| 1994 | 2 | 0 |
| 1995 | 3 | 0 |
| 1996 | 5 | 0 |
| 1997 | 1 | 0 |
| 1998 | 6 | 0 |
| 1999 | 6 | 0 |
| 2000 | 9 | 0 |
| 2001 | 7 | 1 |
| 2002 | 7 | 8 |
| 2003 | 12 | 13 |
| 2004 | 6 | 15 |
| 2005 | 5 | 14 |
| 2006 | 11 | 22 |
| 2007 | 4 | 19 |
| 2008 | 4 | 28 |
| 2009 | 12 | 31 |
| 2010 | 15 | 41 |
| 2011 | 17 | 33 |
| 2012 | 31 | 66 |
| 2013 | 35 | 52 |
| 2014 | 52 | 117 |
| 2015 | 43 | 88 |
| 2016 | 48 | 81 |
| 2017 | 66 | 108 |
| 2018 | 47 | 104 |
| 2019 | 110 | 109 |
| 2020 | 81 | 101 |
| 2021 | 84 | 109 |
| 2022 | 63 | 59 |
| 2023 | 74 | 60 |
| 2024 | 66 | 73 |
| 2025 | 57 | 67 |
| 2026 | 42 | 41 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
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- Method and apparatus for monitoring peripheral circulation in human limbs by integrating temperature feedback with composite optical measurement techniques24 Sep 2026US 2026/0283477 A1National Cheng Kung University
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