A61B 5/4875
Hydration status, fluid retention of the body
Official title: {Hydration status, fluid retention of the body}
A61B5/4875 (Hydration status, fluid retention of the body) appears on 1,063 US grants and 1,668 published applications in this corpus.
Search patents in A61B- Granted patents
- 1,063
- Published applications
- 1,668
- Assignees
- 586
- Inventors
- 2,631
- Latest grant
- 29 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 2 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 1 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 4 | 0 |
| 2000 | 0 | 0 |
| 2001 | 3 | 1 |
| 2002 | 1 | 5 |
| 2003 | 3 | 4 |
| 2004 | 1 | 7 |
| 2005 | 2 | 3 |
| 2006 | 4 | 13 |
| 2007 | 4 | 15 |
| 2008 | 1 | 30 |
| 2009 | 8 | 19 |
| 2010 | 7 | 37 |
| 2011 | 17 | 32 |
| 2012 | 29 | 31 |
| 2013 | 25 | 63 |
| 2014 | 48 | 83 |
| 2015 | 42 | 99 |
| 2016 | 25 | 100 |
| 2017 | 49 | 135 |
| 2018 | 48 | 109 |
| 2019 | 111 | 135 |
| 2020 | 102 | 120 |
| 2021 | 108 | 166 |
| 2022 | 105 | 127 |
| 2023 | 99 | 97 |
| 2024 | 82 | 102 |
| 2025 | 82 | 75 |
| 2026 | 49 | 60 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Tissue hydration monitor29 Sep 2026US 12,745,955 B2Hydrostasis, Inc.
- Customizable patches8 Sep 2026US 12,727,823 B2Lifesignals, Inc.
- Trend analysis for hydration monitoring8 Sep 2026US 12,727,831 B1Tula Health, Inc.
- Biometric wearable device (eg. smart watch) with radiowave or microwave energy emitters/transmitters1 Sep 2026US 12,721,539 B2Medibotics LLC
- Apparatus for detecting electrical conductivity25 Aug 2026US 12,714,326 B2Actegy Limited
- System for sleep monitoring, health status diagnosis, and monitoring of extravasation and methods of use24 Sep 2026US 2026/0283496 A1Anusar Inc.
- Wearable screen-printed biosensor with paper microfluidics for sweat analysis24 Sep 2026US 2026/0283553 A1Jabil Inc.
- Hydration sensing water bottle with consumption tracking and multi-sensor cap24 Sep 2026US 2026/0285558 A1Generosity Water, Inc.
- Systems, methods, and apparatuses for continuous monitoring and effective management of hydration17 Sep 2026US 2026/0272379 A1
- Systems and methods for single-sensor visible-light and swir imaging10 Sep 2026US 2026/0262943 A1Cision Vision, Inc.
Most cited
By later US patents
- Optical hydrology arrays and system and method for monitoring water displacement during treatment of patient tissue1,240US 8,961,504 B2Covidien LP · 2015
- Medical sensor and technique for using the same970US 8,352,004 B2Covidien LP · 2013
- Multi-stream sensor for noninvasive measurement of blood constituents853US 8,203,704 B2Cercacor Laboratories, Inc. · 2012
- Contoured protrusion for improving spectroscopic measurement of blood constituents840US 8,437,825 B2Cercacor Laboratories, Inc. · 2013
- Multi-stream emitter for noninvasive measurement of blood constituents833US 8,515,509 B2Cercacor Laboratories, Inc. · 2013