G01N 21/251
Colorimeters
Official title: {Colorimeters; Construction thereof}
G01N21/251 (Colorimeters) appears on 1,754 US grants and 2,015 published applications in this corpus.
Search patents in G01N- Granted patents
- 1,754
- Published applications
- 2,015
- Assignees
- 1,037
- Inventors
- 4,440
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 9 | 0 |
| 1977 | 11 | 0 |
| 1978 | 9 | 0 |
| 1979 | 1 | 0 |
| 1980 | 7 | 0 |
| 1981 | 11 | 0 |
| 1982 | 13 | 0 |
| 1983 | 9 | 0 |
| 1984 | 10 | 0 |
| 1985 | 7 | 0 |
| 1986 | 7 | 0 |
| 1987 | 8 | 0 |
| 1988 | 8 | 0 |
| 1989 | 8 | 0 |
| 1990 | 9 | 0 |
| 1991 | 8 | 0 |
| 1992 | 14 | 0 |
| 1993 | 10 | 0 |
| 1994 | 15 | 0 |
| 1995 | 17 | 0 |
| 1996 | 17 | 0 |
| 1997 | 12 | 0 |
| 1998 | 18 | 0 |
| 1999 | 18 | 0 |
| 2000 | 16 | 0 |
| 2001 | 30 | 12 |
| 2002 | 37 | 67 |
| 2003 | 42 | 82 |
| 2004 | 36 | 81 |
| 2005 | 31 | 86 |
| 2006 | 61 | 85 |
| 2007 | 61 | 78 |
| 2008 | 52 | 67 |
| 2009 | 40 | 68 |
| 2010 | 60 | 71 |
| 2011 | 51 | 49 |
| 2012 | 47 | 61 |
| 2013 | 39 | 74 |
| 2014 | 56 | 69 |
| 2015 | 51 | 85 |
| 2016 | 66 | 91 |
| 2017 | 65 | 95 |
| 2018 | 81 | 84 |
| 2019 | 87 | 94 |
| 2020 | 73 | 86 |
| 2021 | 82 | 106 |
| 2022 | 70 | 108 |
| 2023 | 61 | 93 |
| 2024 | 84 | 91 |
| 2025 | 82 | 73 |
| 2026 | 37 | 59 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Systems and methods for determining presence and/or characteristics of target analytes in a sample6 Oct 2026US 12,752,273 B2Conservation X Labs, Inc
- Pedestal card and methods for liquid sample control and assay29 Sep 2026US 12,746,544 B2Essenlix Corporation
- System, robot and method for measuring the color of an area of a sample or of a vehicle's part29 Sep 2026US 12,748,040 B2Fyla Laser, S. L.
- Colorimetry system and printing device for measuring colors in printed matter15 Sep 2026US 12,734,822 B2Brother Kogyo Kabushiki Kaisha
- Inspection device and inspection method1 Sep 2026US 12,723,974 B2Subaru Corporation
- High throughput optical assay for screening hemoglobin oxygen affinity modifying drug8 Oct 2026US 2026/0309621 A1
- Supercritical fluid related process monitoring apparatus and method of use thereof24 Sep 2026US 2026/0287497 A1
- Device and method to evaluate a fluid sample on a single-use multianalyte consumable17 Sep 2026US 2026/0276658 A1Siemens Healthcare Diagnostics Inc.
- Laboratory machine and method for processing a sample27 Aug 2026US 2026/0251570 A1Hombrechtikon Systems Engineering AG
- Control of the injection of a liquid onto a test support27 Aug 2026US 2026/0251579 A1Withings
Most cited
By later US patents
- Large scale photolithographic solid phase synthesis of polypeptides and receptor binding screening thereof1,998US 5,143,854 AAffymax Technologies N.V. · 1992
- Array of oligonucleotides on a solid substrate1,585US 5,445,934 AAffymax Technologies N.V. · 1995
- Arrays of materials attached to a substrate1,410US 5,744,305 AAffymetrix, Inc. · 1998
- Methods of amplifying and sequencing nucleic acids960US 7,323,305 B2454 Life Sciences Corporation · 2008
- System and apparatus for sequential processing of analytes749US 6,969,488 B2Solexa Limited · 2005