G01N 21/53
Within a flowing fluid
Official title: within a flowing fluid, e.g. smoke
G01N21/53 (Within a flowing fluid) appears on 1,705 US grants and 1,519 published applications in this corpus.
Search patents in G01N- Granted patents
- 1,705
- Published applications
- 1,519
- Assignees
- 1,048
- Inventors
- 3,596
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 22 | 0 |
| 1977 | 16 | 0 |
| 1978 | 15 | 0 |
| 1979 | 7 | 0 |
| 1980 | 19 | 0 |
| 1981 | 9 | 0 |
| 1982 | 4 | 0 |
| 1983 | 10 | 0 |
| 1984 | 13 | 0 |
| 1985 | 22 | 0 |
| 1986 | 12 | 0 |
| 1987 | 33 | 0 |
| 1988 | 22 | 0 |
| 1989 | 15 | 0 |
| 1990 | 20 | 0 |
| 1991 | 21 | 0 |
| 1992 | 25 | 0 |
| 1993 | 16 | 0 |
| 1994 | 19 | 0 |
| 1995 | 22 | 0 |
| 1996 | 18 | 0 |
| 1997 | 17 | 0 |
| 1998 | 24 | 0 |
| 1999 | 22 | 0 |
| 2000 | 23 | 0 |
| 2001 | 10 | 4 |
| 2002 | 16 | 17 |
| 2003 | 19 | 35 |
| 2004 | 29 | 22 |
| 2005 | 17 | 32 |
| 2006 | 20 | 24 |
| 2007 | 16 | 52 |
| 2008 | 34 | 28 |
| 2009 | 29 | 53 |
| 2010 | 36 | 62 |
| 2011 | 42 | 56 |
| 2012 | 40 | 56 |
| 2013 | 47 | 74 |
| 2014 | 74 | 70 |
| 2015 | 66 | 78 |
| 2016 | 61 | 89 |
| 2017 | 85 | 97 |
| 2018 | 88 | 87 |
| 2019 | 91 | 81 |
| 2020 | 73 | 89 |
| 2021 | 87 | 118 |
| 2022 | 66 | 68 |
| 2023 | 66 | 80 |
| 2024 | 59 | 54 |
| 2025 | 57 | 55 |
| 2026 | 31 | 38 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Methods for compact multi-color flow cytometers having compact detection modules6 Oct 2026US 12,754,128 B2Cytek Biosciences, Inc.
- Aerosol sensor and an integrated optical component thereof29 Sep 2026US 12,748,055 B2Honeywell International Inc.
- Measurement instrument, measurement device, measurement system, and measurement method15 Sep 2026US 12,736,462 B2HORIBA Advanced Techno, Co., Ltd.
- System and method for calculating sea water turbidity based on satellite image15 Sep 2026US 12,736,474 B2Korea Institute of Ocean Science & Technology
- Signal processing method, signal processing device, and signal processing system25 Aug 2026US 12,716,828 B2Hamamatsu Photonics K.K.
- Dtof-based visibility measurement method, sensor, and vehicle1 Oct 2026US 2026/0298821 A1Autox Tech Pte. Ltd.
- Method of scanning a lidar system for gas detection17 Sep 2026US 2026/0276824 A1QLM Technology Ltd
- Systems and methods for detection and identification of smoke, dust and fog10 Sep 2026US 2026/0266719 A1TORC Robotics, Inc.
- System for determining the attenuation of a light wave passing through a sampling volume27 Aug 2026US 2026/0251567 A1Centre National De La Recherche Scientifique
- Analysis device for analyzing working liquids13 Aug 2026US 2026/0235511 A1LIFE ELETTRONICA S.r.l.
Most cited
By later US patents
- Interlaced lasers for multiple fluorescence measurement267US 6,139,800 ALuminex Corporation · 2000
- Multi-analyte diagnostic system and computer implemented process for same261US 6,592,822 B1Luminex Corporation · 2003
- Spectrophotometric blood analysis174US 5,331,958 AUniversity of Manitoba · 1994
- High pulse-energy, eye-safe lidar system170US 7,583,364 B1University Corporation for Atmospheric Research · 2009
- Multi-part differential analyzing apparatus utilizing light scatter techniques165US 5,125,737 ACoulter Electronics, Inc. · 1992