A61B 5/02416
Using photoplethysmograph signals
Official title: {using photoplethysmograph signals, e.g. generated by infrared radiation (A61B5/14552 takes precedence)}
A61B5/02416 (Using photoplethysmograph signals) appears on 4,578 US grants and 7,217 published applications in this corpus.
Search patents in A61B- Granted patents
- 4,578
- Published applications
- 7,217
- Assignees
- 1,765
- Inventors
- 10,055
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 3 | 0 |
| 1977 | 5 | 0 |
| 1978 | 6 | 0 |
| 1979 | 3 | 0 |
| 1980 | 4 | 0 |
| 1981 | 4 | 0 |
| 1982 | 3 | 0 |
| 1983 | 1 | 0 |
| 1984 | 5 | 0 |
| 1985 | 3 | 0 |
| 1986 | 0 | 0 |
| 1987 | 3 | 0 |
| 1988 | 4 | 0 |
| 1989 | 13 | 0 |
| 1990 | 9 | 0 |
| 1991 | 8 | 0 |
| 1992 | 9 | 0 |
| 1993 | 20 | 0 |
| 1994 | 17 | 0 |
| 1995 | 16 | 0 |
| 1996 | 7 | 0 |
| 1997 | 13 | 0 |
| 1998 | 22 | 0 |
| 1999 | 7 | 0 |
| 2000 | 11 | 0 |
| 2001 | 15 | 7 |
| 2002 | 14 | 18 |
| 2003 | 20 | 36 |
| 2004 | 20 | 31 |
| 2005 | 14 | 39 |
| 2006 | 18 | 50 |
| 2007 | 16 | 67 |
| 2008 | 27 | 74 |
| 2009 | 24 | 72 |
| 2010 | 40 | 132 |
| 2011 | 33 | 99 |
| 2012 | 54 | 98 |
| 2013 | 100 | 142 |
| 2014 | 131 | 349 |
| 2015 | 147 | 334 |
| 2016 | 163 | 541 |
| 2017 | 267 | 592 |
| 2018 | 276 | 493 |
| 2019 | 411 | 585 |
| 2020 | 410 | 535 |
| 2021 | 391 | 558 |
| 2022 | 394 | 480 |
| 2023 | 337 | 548 |
| 2024 | 380 | 534 |
| 2025 | 429 | 472 |
| 2026 | 251 | 331 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Method for determining a physiological parameter using a PPG signal with reduced influence of venous pulsatility6 Oct 2026US 12,751,637 B2Csem Centre Suisse D'Electronique Et De Microtechnique SA—Recherche Et DéVeloppement
- Optical signal processing method and system, electronic device29 Sep 2026US 12,745,916 B2Kingfar International Inc.
- Optical signal-quality control with accelerometer-induced signals29 Sep 2026US 12,745,963 B2Google Inc.
- Systems and methods for non-invasive blood pressure measurement29 Sep 2026US 12,745,965 B2Itamar Medical Spry 2021, Limited Partnership
- Wearable electronic device including module assembly comprising an optical sensor and wireless charging29 Sep 2026US 12,748,387 B2Samsung Electronics Co., Ltd.
- Photoplethysmography sensor8 Oct 2026US 2026/0305964 A1Koninklijke Philips N. V.
- Electronic device and driving method thereof8 Oct 2026US 2026/0305965 A1Samsung Display Co., Ltd.
- Interchangeable Watch Strap with Removably Secured Electronic Sensing Module8 Oct 2026US 2026/0306021 A1
- System and Method for Age Deceleration and Preventative Health8 Oct 2026US 2026/0311865 A1LifeQ Limited Limited
- Systems and methods for postpartum hemorrhage risk prediction using maternal heart rate1 Oct 2026US 2026/0294254 A1The Trustees of the University of Pennsylvania
Most cited
By later US patents
- Physiologic tourniquet with safety circuit1,586US 5,931,853 A1999
- Signal processing apparatus and method1,543US 6,002,952 AMasimo Corporation · 1999
- Pulse responsive device1,429US 5,431,170 A1995
- Manual and automatic probe calibration1,429US 5,758,644 AMasimo Corporation · 1998
- Stereo pulse oximeter1,413US 6,334,065 B1Masimo Corporation · 2001