G01N 33/521
Single-layer analytical elements
Official title: {Single-layer analytical elements}
G01N33/521 (Single-layer analytical elements) appears on 599 US grants and 559 published applications in this corpus.
Search patents in G01N- Granted patents
- 599
- Published applications
- 559
- Assignees
- 371
- Inventors
- 1,480
- Latest grant
- 22 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 3 | 0 |
| 1977 | 4 | 0 |
| 1978 | 1 | 0 |
| 1979 | 2 | 0 |
| 1980 | 4 | 0 |
| 1981 | 8 | 0 |
| 1982 | 4 | 0 |
| 1983 | 2 | 0 |
| 1984 | 8 | 0 |
| 1985 | 7 | 0 |
| 1986 | 3 | 0 |
| 1987 | 7 | 0 |
| 1988 | 4 | 0 |
| 1989 | 9 | 0 |
| 1990 | 8 | 0 |
| 1991 | 23 | 0 |
| 1992 | 23 | 0 |
| 1993 | 14 | 0 |
| 1994 | 17 | 0 |
| 1995 | 16 | 0 |
| 1996 | 8 | 0 |
| 1997 | 3 | 0 |
| 1998 | 13 | 0 |
| 1999 | 14 | 0 |
| 2000 | 13 | 0 |
| 2001 | 12 | 4 |
| 2002 | 12 | 16 |
| 2003 | 11 | 28 |
| 2004 | 19 | 21 |
| 2005 | 9 | 20 |
| 2006 | 8 | 20 |
| 2007 | 8 | 15 |
| 2008 | 8 | 19 |
| 2009 | 7 | 18 |
| 2010 | 13 | 20 |
| 2011 | 14 | 13 |
| 2012 | 16 | 15 |
| 2013 | 17 | 20 |
| 2014 | 21 | 28 |
| 2015 | 23 | 18 |
| 2016 | 13 | 31 |
| 2017 | 23 | 26 |
| 2018 | 12 | 28 |
| 2019 | 16 | 21 |
| 2020 | 22 | 25 |
| 2021 | 11 | 31 |
| 2022 | 20 | 46 |
| 2023 | 16 | 28 |
| 2024 | 20 | 26 |
| 2025 | 16 | 13 |
| 2026 | 14 | 9 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Chromatographic strip support tool and method for using same22 Sep 2026US 12,742,736 B2Kaneka Corporation
- Test strip assembly with containers11 Aug 2026US 12,702,974 B2Aeneas GmbH & Co. KG
- Bodily fluid testing method30 Jun 2026US 12,669,443 B2Testcard Ltd.
- Color-based breast milk analyses using test strips16 Jun 2026US 12,656,337 B2Lactation Lab Inc.
- Sensor device12 May 2026US 12,625,136 B2Imec Vzw
- Opioid Detection Wipes13 Aug 2026US 2026/0235524 A1Rockline Industries, Inc.
- Method for enhanced determination of analyte concentration in bodily fluid11 Jun 2026US 2026/0160755 A1
- Colorimetric detection of a viral infection21 May 2026US 2026/0140060 A1Ramot at Tel-Aviv University Ltd.
- Test strip assembly for analysing bodily fluids and devices thereof14 May 2026US 2026/0133185 A1Inito Health Inc.
- Test strip assembly for analysing bodily fluids2 Apr 2026US 2026/0091384 A1Inito Health Inc.
Most cited
By later US patents
- Reagent test strip and apparatus for determination of blood glucose896US 5,304,468 ALifeScan, Inc. · 1994
- Automated initiation of timing of reflectance readings604US 5,049,487 ALifeScan, Inc. · 1991
- Multichemistry measuring device and test strips540US 6,773,671 B1Abbott Laboratories · 2004
- Analytical device for the automated determination of analytes in fluids443US 5,059,394 ALifeScan, Inc. · 1991
- No-wipe whole blood glucose test strip435US 5,426,032 ALifeScan, Inc. · 1995