G01N 21/85
Investigating moving fluids or granular solids
G01N21/85 (Investigating moving fluids or granular solids) appears on 2,298 US grants and 2,421 published applications in this corpus.
Search patents in G01N- Granted patents
- 2,298
- Published applications
- 2,421
- Assignees
- 1,554
- Inventors
- 5,945
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 8 | 0 |
| 1977 | 9 | 0 |
| 1978 | 11 | 0 |
| 1979 | 4 | 0 |
| 1980 | 8 | 0 |
| 1981 | 8 | 0 |
| 1982 | 3 | 0 |
| 1983 | 2 | 0 |
| 1984 | 11 | 0 |
| 1985 | 14 | 0 |
| 1986 | 8 | 0 |
| 1987 | 13 | 0 |
| 1988 | 25 | 0 |
| 1989 | 32 | 0 |
| 1990 | 38 | 0 |
| 1991 | 43 | 0 |
| 1992 | 33 | 0 |
| 1993 | 40 | 0 |
| 1994 | 29 | 0 |
| 1995 | 28 | 0 |
| 1996 | 21 | 0 |
| 1997 | 14 | 0 |
| 1998 | 24 | 0 |
| 1999 | 16 | 0 |
| 2000 | 25 | 0 |
| 2001 | 24 | 5 |
| 2002 | 20 | 31 |
| 2003 | 32 | 47 |
| 2004 | 36 | 42 |
| 2005 | 27 | 40 |
| 2006 | 28 | 43 |
| 2007 | 29 | 39 |
| 2008 | 38 | 59 |
| 2009 | 24 | 63 |
| 2010 | 56 | 77 |
| 2011 | 43 | 58 |
| 2012 | 44 | 67 |
| 2013 | 47 | 82 |
| 2014 | 62 | 103 |
| 2015 | 85 | 102 |
| 2016 | 98 | 143 |
| 2017 | 94 | 125 |
| 2018 | 104 | 161 |
| 2019 | 147 | 172 |
| 2020 | 145 | 149 |
| 2021 | 111 | 131 |
| 2022 | 114 | 162 |
| 2023 | 103 | 139 |
| 2024 | 115 | 149 |
| 2025 | 132 | 124 |
| 2026 | 73 | 108 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- G01N 21/8507Probe photometers, i.e. with optical measuring part dipped into fluid sample746
- G01N 2021/8592Grain or other flowing solid samplesIndexing code231
- G01N 2021/8578Gaseous flowIndexing code169
- G01N 2021/8557Special shaping of flowIndexing code108
- G01N 2021/8571Using filtering of sample fluidIndexing code19
Recent patents
- Apparatus and system for analyzing agricultural material6 Oct 2026US 12,751,365 B2Deere & Company
- Time-of-flight measurement on user with cameras and position sensor6 Oct 2026US 12,751,628 B2Omni Medsci, Inc.
- Biochemical substance analysis system, method, and device6 Oct 2026US 12,754,135 B2MGI Tech Co., Ltd.
- Optical systems and optical measuring apparatus29 Sep 2026US 12,748,038 B2Yokogawa Electric Corporation
- Air quality measuring device22 Sep 2026US 12,742,727 B2Samsung Electronics Co., Ltd.
- Sorter devices, detection systems of sorter devices, and related methods8 Oct 2026US 2026/0307110 A1Cimbria S.r.l.
- Sample probe8 Oct 2026US 2026/0309590 A1Teknologian tutkimuskeskus VTT Oy
- Estimating element content in molten material at openings of metallurgical vessels8 Oct 2026US 2026/0309629 A1Paul Wurth S. A.
- Estimating element content in molten material at openings of metallurgical vessels8 Oct 2026US 2026/0309630 A1Paul Wurth S. A.
- Single point analyzer1 Oct 2026US 2026/0298809 A1Tomra Sorting GmbH
Most cited
By later US patents
- Fiber-optic physiological probes732US 4,925,268 AAbbott Laboratories · 1990
- Analytical device for in vivo analysis in the body of a patient441US 6,584,335 B1Roche Diagnostics GmbH · 2003
- Micro-invasive method for painless detection of analytes in extracellular space327US 6,904,301 B2Becton, Dickinson and Company · 2005
- Tissue structure identification in advance of instrument277US 8,046,057 B22011
- Micro-invasive method for painless detection of analytes in extra-cellular space243US 6,535,753 B1MicroSense International LLC · 2003