G01N 15/02
Investigating particle size or size distribution
Official title: Investigating particle size or size distribution (by measuring osmotic pressure G01N7/10; investigating sedimentation of particle suspensions G01N15/04; investigating individual particles G01N15/10)
G01N15/02 (Investigating particle size or size distribution) appears on 3,341 US grants and 3,461 published applications in this corpus.
Search patents in G01N- Granted patents
- 3,341
- Published applications
- 3,461
- Assignees
- 1,844
- Inventors
- 7,692
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 8 | 0 |
| 1977 | 8 | 0 |
| 1978 | 5 | 0 |
| 1979 | 12 | 0 |
| 1980 | 9 | 0 |
| 1981 | 18 | 0 |
| 1982 | 11 | 0 |
| 1983 | 13 | 0 |
| 1984 | 12 | 0 |
| 1985 | 21 | 0 |
| 1986 | 19 | 0 |
| 1987 | 36 | 0 |
| 1988 | 34 | 0 |
| 1989 | 34 | 0 |
| 1990 | 31 | 0 |
| 1991 | 34 | 0 |
| 1992 | 34 | 0 |
| 1993 | 29 | 0 |
| 1994 | 31 | 0 |
| 1995 | 30 | 0 |
| 1996 | 35 | 0 |
| 1997 | 34 | 0 |
| 1998 | 32 | 0 |
| 1999 | 45 | 0 |
| 2000 | 60 | 0 |
| 2001 | 48 | 13 |
| 2002 | 65 | 81 |
| 2003 | 75 | 79 |
| 2004 | 65 | 98 |
| 2005 | 45 | 79 |
| 2006 | 64 | 63 |
| 2007 | 69 | 69 |
| 2008 | 56 | 74 |
| 2009 | 59 | 78 |
| 2010 | 62 | 79 |
| 2011 | 53 | 66 |
| 2012 | 60 | 85 |
| 2013 | 62 | 82 |
| 2014 | 97 | 106 |
| 2015 | 81 | 111 |
| 2016 | 84 | 121 |
| 2017 | 114 | 160 |
| 2018 | 132 | 203 |
| 2019 | 173 | 232 |
| 2020 | 205 | 234 |
| 2021 | 188 | 279 |
| 2022 | 162 | 259 |
| 2023 | 180 | 223 |
| 2024 | 188 | 251 |
| 2025 | 212 | 189 |
| 2026 | 107 | 147 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- G01N 15/0205By optical means2,234
- G01N 15/0255With mechanical352
- G01N 2015/0288Sorting the particlesIndexing code279
- G01N 15/0266With electrical classification264
- G01N 2015/0294Particle shapeIndexing code264
- G01N 15/0272With screening247
- G01N 2015/0277Average size onlyIndexing code51
- G01N 2015/0283Using control of suspension concentrationIndexing code10
Recent patents
- Corrosion estimation method and device6 Oct 2026US 12,754,117 B2NTT, Inc.
- Particle analysis device6 Oct 2026US 12,754,118 B2Horiba, Ltd.
- Automatic analyzer and method for optically analyzing a biological sample6 Oct 2026US 12,754,119 B2Siemens Healthcare Diagnostics Inc.
- Systems and methods for real-time analysis of inhaled particles29 Sep 2026US 12,748,029 B2Pneumax S.P.A.
- Apparatus to measure electrophoretic mobility29 Sep 2026US 12,748,030 B2Wyatt Technology Corporation
- Slurry monitoring device, cmp system and method of in-line monitoring a slurry8 Oct 2026US 2026/0307205 A1Taiwan Semiconductor Manufacturing Company.Ltd
- Method for particle size analysis of bed material sediment and related device8 Oct 2026US 2026/0309609 A1China Three Gorges University
- Particle characterization system8 Oct 2026US 2026/0309610 A1Universite De Geneve
- Metrology platform methods and systems for particulate assessment1 Oct 2026US 2026/0298791 A1Taiwan Semiconductor Manufacturing Company.Ltd
- Light detection systems for small particle detection and methods of use thereof1 Oct 2026US 2026/0298795 A1
Most cited
By later US patents
- Robust system for screening mail for biological agents1,080US 6,887,710 B2MesoSystems Technology, Inc. · 2005
- Increasing the sensitivity of an in-situ particle monitor559US 6,125,789 AAPPLIED Materials.Inc. · 2000
- Environmental sensor device with alarms333US 9,280,884 B1Oberon, Inc. · 2016
- Flow-injection analysis and variable-flow light-scattering methods and apparatus for characterizing polymers317US 6,175,409 B1Symyx Technologies, Inc. · 2001
- Microlithographic array for macromolecule and cell fractionation267US 5,427,663 ABritish Technology Group USA Inc. · 1995