B01D 46/442
By measuring the concentration of particles
Official title: {by measuring the concentration of particles}
B01D46/442 (By measuring the concentration of particles) appears on 244 US grants and 348 published applications in this corpus.
Search patents in B01D- Granted patents
- 244
- Published applications
- 348
- Assignees
- 189
- Inventors
- 743
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1984 | 2 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 1 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 1 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 3 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 1 |
| 2003 | 1 | 2 |
| 2004 | 1 | 2 |
| 2005 | 1 | 3 |
| 2006 | 4 | 3 |
| 2007 | 3 | 4 |
| 2008 | 0 | 4 |
| 2009 | 1 | 6 |
| 2010 | 1 | 9 |
| 2011 | 6 | 6 |
| 2012 | 7 | 2 |
| 2013 | 4 | 3 |
| 2014 | 4 | 6 |
| 2015 | 1 | 7 |
| 2016 | 5 | 11 |
| 2017 | 7 | 29 |
| 2018 | 11 | 17 |
| 2019 | 9 | 20 |
| 2020 | 24 | 39 |
| 2021 | 21 | 40 |
| 2022 | 28 | 38 |
| 2023 | 26 | 31 |
| 2024 | 21 | 23 |
| 2025 | 31 | 18 |
| 2026 | 20 | 24 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
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Most cited
By later US patents
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