G01N 21/6447
By visual observation
Official title: {by visual observation}
G01N21/6447 (By visual observation) appears on 175 US grants and 212 published applications in this corpus.
Search patents in G01N- Granted patents
- 175
- Published applications
- 212
- Assignees
- 151
- Inventors
- 490
- Latest grant
- 19 May 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 2 | 0 |
| 1993 | 1 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 2 | 0 |
| 1998 | 3 | 0 |
| 1999 | 4 | 0 |
| 2000 | 0 | 0 |
| 2001 | 1 | 0 |
| 2002 | 3 | 3 |
| 2003 | 5 | 12 |
| 2004 | 6 | 13 |
| 2005 | 8 | 11 |
| 2006 | 9 | 8 |
| 2007 | 10 | 5 |
| 2008 | 3 | 6 |
| 2009 | 2 | 7 |
| 2010 | 9 | 5 |
| 2011 | 2 | 3 |
| 2012 | 0 | 12 |
| 2013 | 5 | 12 |
| 2014 | 8 | 11 |
| 2015 | 7 | 12 |
| 2016 | 4 | 7 |
| 2017 | 9 | 9 |
| 2018 | 8 | 9 |
| 2019 | 5 | 11 |
| 2020 | 11 | 13 |
| 2021 | 13 | 10 |
| 2022 | 8 | 10 |
| 2023 | 8 | 8 |
| 2024 | 9 | 4 |
| 2025 | 4 | 8 |
| 2026 | 3 | 3 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Secondary battery having lead film including luminous material and method of inspecting defects of secondary battery19 May 2026US 12,631,565 B2LG Energy Solution, Ltd.
- Top hat illumination biological sample imaging devices, and methods of using the same21 Apr 2026US 12,607,563 B2Bionano Genomics, Inc.
- Systems and methods for detection of contaminants on surfaces6 Jan 2026US 12,517,051 B2PathSpot Technologies, Inc.
- Black light in remote device for patient support apparatus12 Aug 2025US 12,383,449 B2Baxter Medical Systems GmbH + Co. KG
- Portable modular unit for inspecting in a timepiece the presence of a lubricating agent or of an epilame24 Jun 2025US 12,339,230 B2The Swatch Group Research and Development Ltd
- Uv light viewing apparatus facilitating sample testing25 Jun 2026US 2026/0177486 A1IDEXX Laboratories, Inc.
- Fluorescence-basedtoxin detection apparatus and method2 Apr 2026US 2026/0092866 A1The United States of America as represented by the Secretary of the Army
- Composition for making a model for simulating a soft tissue with fluorescence, mixture comprising such a composition, model and use2 Apr 2026US 2026/0094538 A1Upsurgeon S.R.L
- Glasses and shield for phosphorescence detection and method30 Oct 2025US 2025/0334449 A1UV Lit Optical, LLC
- Compositions for detection of fluorocarbons and related articles, systems, and methods11 Sep 2025US 2025/0283816 A1Massachusetts Institute of Technology
Most cited
By later US patents
- System for detecting injection holding material1,074US 6,943,348 B1Masimo Corporation · 2005
- Handwashing technique analysis109US 5,900,067 A1999
- Dermoscopy epiluminescence device employing cross and parallel polarization109US 7,006,223 B23Gen, Inc. · 2006
- Fluorometric detection using visible light95US 6,198,107 B1Clare Chemical Research, Inc. · 2001
- Lubricant soluble fluorescent agent and method for its use in a system for detection of lubricant coatings75US 5,807,605 ABecton, Dickinson and Company · 1998