G01N 15/06
Investigating concentration of particle suspensions
Official title: Investigating concentration of particle suspensions (by weighing G01N5/00; investigating sedimentation of particle suspensions G01N15/04; investigating individual particles G01N15/10)
G01N15/06 (Investigating concentration of particle suspensions) appears on 3,054 US grants and 3,742 published applications in this corpus.
Search patents in G01N- Granted patents
- 3,054
- Published applications
- 3,742
- Assignees
- 1,765
- Inventors
- 7,779
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 10 | 0 |
| 1977 | 8 | 0 |
| 1978 | 10 | 0 |
| 1979 | 3 | 0 |
| 1980 | 3 | 0 |
| 1981 | 1 | 0 |
| 1982 | 1 | 0 |
| 1983 | 8 | 0 |
| 1984 | 9 | 0 |
| 1985 | 10 | 0 |
| 1986 | 12 | 0 |
| 1987 | 22 | 0 |
| 1988 | 15 | 0 |
| 1989 | 12 | 0 |
| 1990 | 18 | 0 |
| 1991 | 15 | 0 |
| 1992 | 15 | 0 |
| 1993 | 24 | 0 |
| 1994 | 16 | 0 |
| 1995 | 16 | 0 |
| 1996 | 19 | 0 |
| 1997 | 23 | 0 |
| 1998 | 10 | 0 |
| 1999 | 14 | 0 |
| 2000 | 12 | 0 |
| 2001 | 18 | 2 |
| 2002 | 32 | 30 |
| 2003 | 31 | 40 |
| 2004 | 25 | 49 |
| 2005 | 25 | 47 |
| 2006 | 33 | 44 |
| 2007 | 37 | 55 |
| 2008 | 28 | 77 |
| 2009 | 41 | 69 |
| 2010 | 46 | 82 |
| 2011 | 58 | 87 |
| 2012 | 64 | 96 |
| 2013 | 68 | 112 |
| 2014 | 81 | 100 |
| 2015 | 83 | 143 |
| 2016 | 94 | 174 |
| 2017 | 136 | 221 |
| 2018 | 180 | 258 |
| 2019 | 217 | 309 |
| 2020 | 228 | 299 |
| 2021 | 238 | 313 |
| 2022 | 222 | 294 |
| 2023 | 201 | 263 |
| 2024 | 217 | 249 |
| 2025 | 210 | 180 |
| 2026 | 135 | 149 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- G01N 15/075By optical means1,118
- G01N 15/0606By collecting particles on a support876
- G01N 15/0656Using electric788
- G01N 2015/0687In solutionsIndexing code185
- G01N 15/065Using condensation nuclei counters182
- G01N 2015/0681Purposely modifying particlesIndexing code70
- G01N 2015/0662Comparing before/after passage through filterIndexing code39
- G01N 2015/0668Comparing properties of sample and carrier fluidIndexing code14
All 9 subgroupsShow fewer
Recent patents
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- Soot detection method for mild combustion system of tar-containing biomass gasified gas1 Oct 2026US 2026/0298793 A1Tianjin University
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Most cited
By later US patents
- Apparatus for counting particles in a gas552US 8,711,338 B2MSP Corporation · 2014
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- Environmental sensor device with alarms333US 9,280,884 B1Oberon, Inc. · 2016
- Medical device durability test apparatus having an integrated particle counter and method of use270US 7,621,192 B2Dynatek Laboratories, Inc. · 2009
- Contaminant monitoring and air filtration system256US 10,422,727 B22019