A61M 21/02
Devices for delivering substances into the body: other devices or methods to
Official title: for inducing sleep or relaxation, e.g. by direct nerve stimulation, hypnosis, analgesia (for massage A61H; electrotherapy A61N, e.g. applying alternating or intermittent electric currents for producing anaesthesia A61N1/36021)
A61M21/02 (Devices for delivering substances into the body: other devices or methods to) appears on 1,585 US grants and 2,923 published applications in this corpus.
Search patents in A61M- Granted patents
- 1,585
- Published applications
- 2,923
- Assignees
- 1,065
- Inventors
- 4,311
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1986 | 1 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 1 | 0 |
| 1991 | 1 | 0 |
| 1992 | 0 | 0 |
| 1993 | 1 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 2 | 0 |
| 1998 | 0 | 0 |
| 1999 | 1 | 0 |
| 2000 | 2 | 0 |
| 2001 | 0 | 3 |
| 2002 | 3 | 3 |
| 2003 | 3 | 6 |
| 2004 | 5 | 14 |
| 2005 | 4 | 16 |
| 2006 | 8 | 38 |
| 2007 | 8 | 14 |
| 2008 | 14 | 23 |
| 2009 | 6 | 34 |
| 2010 | 14 | 46 |
| 2011 | 14 | 49 |
| 2012 | 17 | 29 |
| 2013 | 30 | 77 |
| 2014 | 28 | 141 |
| 2015 | 36 | 106 |
| 2016 | 50 | 113 |
| 2017 | 60 | 163 |
| 2018 | 88 | 168 |
| 2019 | 145 | 215 |
| 2020 | 163 | 268 |
| 2021 | 169 | 249 |
| 2022 | 151 | 245 |
| 2023 | 159 | 264 |
| 2024 | 144 | 239 |
| 2025 | 150 | 213 |
| 2026 | 107 | 187 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
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- Recommendation methods, systems and devices6 Oct 2026US 12,755,828 B1The Joan and Irwin Jacobs Technion-Cornell Institute
- Lighting system for circadian control and enhanced performance29 Sep 2026US 12,746,363 B2Brown University
- Methods and systems for sleep management22 Sep 2026US 12,741,117 B2ResMed Sensor Technologies Limited
- Methods of using ultrasound waves for sonodynamic therapy22 Sep 2026US 12,741,161 B2Alpheus Medical, Inc.
- Systems and methods for visual cortex targeting and treatment8 Oct 2026US 2026/0306786 A1Sana Health, Inc.
- Persistent emotional core module for multi-housing interactive companions8 Oct 2026US 2026/0306956 A1AIfection LLC
- Vibration Noise-to-Music Conversion System for Massage Device1 Oct 2026US 2026/0294735 A1
- Soothing device1 Oct 2026US 2026/0295202 A1Ningbo Sincere Leisure Products Co., Ltd.
- Closed-loop sleep management method, head-worn closed-loop sleep management system, and electronic device1 Oct 2026US 2026/0295203 A1University of Science and Technology of China
Most cited
By later US patents
- Pneumonia screener367US 11,185,262 B2Masimo Corporation · 2021
- Vigilance monitoring system322US 6,575,902 B1Compumedics Limited · 2003
- System and method for monitoring eye movement284US 6,542,081 B22003
- Light redirecting films and film systems236US 6,752,505 B2Solid State Opto Limited · 2004
- State-based system for automated shading200US 7,941,245 B12011