A61B 5/7221
Determining signal validity, reliability or quality
Official title: {Determining signal validity, reliability or quality (preventing, reducing or removing noise induced by motion artefacts A61B5/7207; noise originating from a therapeutic or surgical apparatus A61B5/7217)}
A61B5/7221 (Determining signal validity, reliability or quality) appears on 2,041 US grants and 3,242 published applications in this corpus.
Search patents in A61B- Granted patents
- 2,041
- Published applications
- 3,242
- Assignees
- 938
- Inventors
- 5,232
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1990 | 1 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 1 | 0 |
| 1996 | 2 | 0 |
| 1997 | 1 | 0 |
| 1998 | 2 | 0 |
| 1999 | 1 | 0 |
| 2000 | 0 | 0 |
| 2001 | 1 | 0 |
| 2002 | 2 | 5 |
| 2003 | 3 | 6 |
| 2004 | 3 | 11 |
| 2005 | 4 | 6 |
| 2006 | 8 | 19 |
| 2007 | 4 | 22 |
| 2008 | 6 | 18 |
| 2009 | 7 | 24 |
| 2010 | 15 | 42 |
| 2011 | 17 | 36 |
| 2012 | 25 | 59 |
| 2013 | 45 | 74 |
| 2014 | 65 | 148 |
| 2015 | 86 | 161 |
| 2016 | 75 | 194 |
| 2017 | 99 | 206 |
| 2018 | 98 | 184 |
| 2019 | 200 | 274 |
| 2020 | 177 | 224 |
| 2021 | 188 | 271 |
| 2022 | 183 | 288 |
| 2023 | 190 | 291 |
| 2024 | 203 | 305 |
| 2025 | 208 | 211 |
| 2026 | 121 | 163 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
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Most cited
By later US patents
- Pulse oximeter probe-off detector1,277US 6,360,114 B1Masimo Corporation · 2002
- Pulse oximetry data confidence indicator1,269US 6,684,090 B2Masimo Corporation · 2004
- Pulse oximetry data confidence indicator1,222US 6,996,427 B2Masimo Corporation · 2006
- Method and apparatus for reducing coupling between signals1,149US 7,003,338 B2Masimo Corporation · 2006
- Pulse oximeter probe-off detector1,114US 6,654,624 B2Masimo Corporation · 2003