G01N 21/274
Calibration, base line adjustment, drift correction
Official title: {Calibration, base line adjustment, drift correction}
G01N21/274 (Calibration, base line adjustment, drift correction) appears on 2,317 US grants and 2,574 published applications in this corpus.
Search patents in G01N- Granted patents
- 2,317
- Published applications
- 2,574
- Assignees
- 1,428
- Inventors
- 5,562
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 13 | 0 |
| 1977 | 9 | 0 |
| 1978 | 7 | 0 |
| 1979 | 7 | 0 |
| 1980 | 4 | 0 |
| 1981 | 3 | 0 |
| 1982 | 3 | 0 |
| 1983 | 4 | 0 |
| 1984 | 8 | 0 |
| 1985 | 10 | 0 |
| 1986 | 8 | 0 |
| 1987 | 10 | 0 |
| 1988 | 3 | 0 |
| 1989 | 9 | 0 |
| 1990 | 13 | 0 |
| 1991 | 13 | 0 |
| 1992 | 14 | 0 |
| 1993 | 22 | 0 |
| 1994 | 25 | 0 |
| 1995 | 15 | 0 |
| 1996 | 20 | 0 |
| 1997 | 18 | 0 |
| 1998 | 24 | 0 |
| 1999 | 21 | 0 |
| 2000 | 23 | 0 |
| 2001 | 19 | 5 |
| 2002 | 38 | 44 |
| 2003 | 41 | 66 |
| 2004 | 44 | 70 |
| 2005 | 51 | 134 |
| 2006 | 66 | 116 |
| 2007 | 87 | 107 |
| 2008 | 78 | 106 |
| 2009 | 82 | 91 |
| 2010 | 80 | 105 |
| 2011 | 71 | 104 |
| 2012 | 87 | 95 |
| 2013 | 79 | 95 |
| 2014 | 78 | 96 |
| 2015 | 72 | 105 |
| 2016 | 60 | 112 |
| 2017 | 97 | 107 |
| 2018 | 100 | 119 |
| 2019 | 129 | 132 |
| 2020 | 112 | 140 |
| 2021 | 116 | 124 |
| 2022 | 100 | 119 |
| 2023 | 73 | 114 |
| 2024 | 99 | 103 |
| 2025 | 98 | 91 |
| 2026 | 54 | 74 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Raman spectroscopy method and apparatus6 Oct 2026US 12,754,131 B2The University Court of the University of Edinburgh
- Beam profiler certification and calibration22 Sep 2026US 12,742,726 B2The Boeing Company
- Optical systems and methods for biological analysis15 Sep 2026US 12,736,477 B2Life Technologies Corporation
- Optical measurement device and optical measurement method1 Sep 2026US 12,723,975 B2Hamamatsu Photonics K.K.
- Processes and systems for monitoring one or more gases dissolved in a liquid1 Sep 2026US 12,724,022 B2Schlumberger Technology Corporation
- Method for developing tissue-specific color chart1 Oct 2026US 2026/0298808 A1Purdue Research Foundation
- Single point analyzer1 Oct 2026US 2026/0298809 A1Tomra Sorting GmbH
- Systems and methods for determining crosstalk coefficients24 Sep 2026US 2026/0287498 A1Roche Sequencing Solutions, Inc.
- Field test for determining emulsifier concentrations in drilling fluids24 Sep 2026US 2026/0287572 A1Halliburton Energy Services.Inc.
- Device for Testing Dryness of Electrode, and Method for Testing Dryness of Electrode10 Sep 2026US 2026/0266716 A1LG Energy Solution, Ltd.
Most cited
By later US patents
- Method and apparatus using alternative site glucose determinations to calibrate and maintain noninvasive and implantable analyzers1,598US 6,998,247 B2Sensys Medical, Inc. · 2006
- Manual and automatic probe calibration1,429US 5,758,644 AMasimo Corporation · 1998
- Manual and automatic probe calibration1,177US 6,011,986 AMasimo Corporation · 2000
- Optical probe and positioning wrap1,167US 6,678,543 B2Masimo Corporation · 2004
- Manual and automatic probe calibration1,147US 6,397,091 B2Masimo Corporation · 2002