A61B 5/0535
Impedance plethysmography
Official title: Impedance plethysmography (for measuring blood flow A61B5/0295)
A61B5/0535 (Impedance plethysmography) appears on 180 US grants and 234 published applications in this corpus.
Search patents in A61B- Granted patents
- 180
- Published applications
- 234
- Assignees
- 159
- Inventors
- 543
- Latest grant
- 8 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 1 | 0 |
| 1978 | 1 | 0 |
| 1979 | 1 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 1 | 0 |
| 1989 | 3 | 0 |
| 1990 | 2 | 0 |
| 1991 | 4 | 0 |
| 1992 | 1 | 0 |
| 1993 | 3 | 0 |
| 1994 | 4 | 0 |
| 1995 | 3 | 0 |
| 1996 | 2 | 0 |
| 1997 | 1 | 0 |
| 1998 | 9 | 0 |
| 1999 | 4 | 0 |
| 2000 | 2 | 0 |
| 2001 | 2 | 0 |
| 2002 | 2 | 3 |
| 2003 | 2 | 3 |
| 2004 | 4 | 8 |
| 2005 | 1 | 3 |
| 2006 | 5 | 6 |
| 2007 | 1 | 6 |
| 2008 | 5 | 9 |
| 2009 | 1 | 10 |
| 2010 | 6 | 11 |
| 2011 | 4 | 6 |
| 2012 | 8 | 7 |
| 2013 | 2 | 11 |
| 2014 | 14 | 18 |
| 2015 | 6 | 9 |
| 2016 | 3 | 6 |
| 2017 | 4 | 13 |
| 2018 | 2 | 5 |
| 2019 | 9 | 9 |
| 2020 | 7 | 7 |
| 2021 | 5 | 13 |
| 2022 | 2 | 19 |
| 2023 | 13 | 9 |
| 2024 | 8 | 16 |
| 2025 | 7 | 13 |
| 2026 | 12 | 14 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Trend analysis for hydration monitoring8 Sep 2026US 12,727,831 B1Tula Health, Inc.
- Monitoring physiological status based on bio-vibrational and radio frequency data analysis1 Sep 2026US 12,721,575 B2ZOLL Medical Corporation
- Multi-sensor device for monitoring health11 Aug 2026US 12,702,319 B2Analog Devices, Inc.
- Self-learning and non-invasive bladder monitoring systems and methods28 Apr 2026US 12,611,130 B2C. R. Bard, Inc.
- Physiological sensor patch for making complex measurements of bioimpedance21 Apr 2026US 12,605,111 B2Baxter Healthcare S. A.
- Computing Device Having Miniaturized Impedance Plethysmography Sensor for Measuring Blood Flow17 Sep 2026US 2026/0272323 A1Google Inc.
- Method and apparatus for noninvasive blood pressure estimation using footwear-integrated pressure sensing27 Aug 2026US 2026/0248397 A1Vidicor Inc
- Method and apparatus for capacitive force sensing27 Aug 2026US 2026/0251511 A1Vidicor Inc
- Physiological sensor patch for making complex measurements of bioimpedance6 Aug 2026US 2026/0224164 A1Baxter Healthcare S. A.
- Medical device for monitoring biological parameters16 Jul 2026US 2026/0198834 A1Home Habilis
Most cited
By later US patents
- Methods and devices for measuring impedance in a gastric restriction system876US 8,192,350 B2Ethicon Endo-Surgery, Inc. · 2012
- System and method for telemetrically providing intrabody spatial position621US 6,239,724 B1Remon Medical Technologies, Ltd. · 2001
- Impedance monitor for discerning edema through evaluation of respiratory rate538US 5,957,861 AMedtronic, Inc. · 1999
- Impedance monitor for discerning edema through evaluation of respiratory rate516US 5,876,353 AMedtronic, Inc. · 1999
- Endocardial mapping system455US 5,297,549 AEndocardial Therapeutics, Inc. · 1994