G01N 21/293
With colour charts, graduated scales or turrets
Official title: {with colour charts, graduated scales or turrets}
G01N21/293 (With colour charts, graduated scales or turrets) appears on 97 US grants and 105 published applications in this corpus.
Search patents in G01N- Granted patents
- 97
- Published applications
- 105
- Assignees
- 86
- Inventors
- 262
- Latest grant
- 29 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 1 | 0 |
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 2 | 0 |
| 1990 | 2 | 0 |
| 1991 | 4 | 0 |
| 1992 | 4 | 0 |
| 1993 | 1 | 0 |
| 1994 | 1 | 0 |
| 1995 | 0 | 0 |
| 1996 | 1 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 3 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 1 | 4 |
| 2003 | 1 | 0 |
| 2004 | 2 | 0 |
| 2005 | 0 | 0 |
| 2006 | 1 | 1 |
| 2007 | 3 | 2 |
| 2008 | 1 | 3 |
| 2009 | 0 | 1 |
| 2010 | 4 | 2 |
| 2011 | 0 | 2 |
| 2012 | 4 | 4 |
| 2013 | 3 | 5 |
| 2014 | 1 | 2 |
| 2015 | 3 | 10 |
| 2016 | 3 | 5 |
| 2017 | 3 | 6 |
| 2018 | 6 | 9 |
| 2019 | 6 | 5 |
| 2020 | 5 | 6 |
| 2021 | 3 | 6 |
| 2022 | 4 | 9 |
| 2023 | 4 | 7 |
| 2024 | 4 | 6 |
| 2025 | 6 | 4 |
| 2026 | 5 | 6 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Apparatus and method for testing blood29 Sep 2026US 12,748,041 B2Siemens Healthcare Diagnostics Inc.
- Methods and kits for rapid, colormetric beryllium detection30 Jun 2026US 12,669,441 B2Consolidated Nuclear Security, LLC
- Peracetic acid formulation concentration determination method3 Mar 2026US 12,566,141 B2Suzuken Co., Ltd.
- Cell-free biosensors to detect creatinine, creatine, and sarcosine3 Mar 2026US 12,566,184 B2Georgia Tech Research Corporation
- Method of determining the concentration of an analyte in a sample of a body fluid using a camera and a color reference card3 Feb 2026US 12,542,859 B2Roche Diabetes Care, Inc.
- Methods and kits for rapid, colorimetric beryllium detection8 Oct 2026US 2026/0309633 A1Consolidated Nuclear Security, LLC
- Detection method using hrpzyme24 Sep 2026US 2026/0286450 A1Delaware State University
- Field test for determining emulsifier concentrations in drilling fluids24 Sep 2026US 2026/0287572 A1Halliburton Energy Services.Inc.
- Saliva Based System and Method for Detecting VOCs, General Health Issues, and Disease States27 Aug 2026US 2026/0251557 A1Orthonu, LLC
- Apparatus and method for testing blood30 Apr 2026US 2026/0118257 A1Siemens Healthcare Diagnostics Inc.
Most cited
By later US patents
- Assay kit including an analyte test strip and a color comparator97US 4,877,580 ATechnimed Corporation · 1989
- Color test meter54US 4,871,258 ABoehringer Mannheim GmbH · 1989
- Sample container39US 4,976,923 ARhode Island Hospital · 1990
- Color mixture indicator device29US 4,657,399 A1987
- Hand-held fluid analyzer28US 7,837,936 B1Akers Acquisition Sub, Inc. · 2010