B01D 2239/1241
Particle diameter
B01D2239/1241 (Particle diameter) appears on 239 US grants and 338 published applications in this corpus.
Search patents in B01D- Granted patents
- 239
- Published applications
- 338
- Assignees
- 243
- Inventors
- 881
- Latest grant
- 25 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 3 | 0 |
| 1978 | 1 | 0 |
| 1979 | 1 | 0 |
| 1980 | 1 | 0 |
| 1981 | 1 | 0 |
| 1982 | 3 | 0 |
| 1983 | 0 | 0 |
| 1984 | 2 | 0 |
| 1985 | 4 | 0 |
| 1986 | 1 | 0 |
| 1987 | 0 | 0 |
| 1988 | 2 | 0 |
| 1989 | 2 | 0 |
| 1990 | 1 | 0 |
| 1991 | 2 | 0 |
| 1992 | 0 | 0 |
| 1993 | 7 | 0 |
| 1994 | 9 | 0 |
| 1995 | 2 | 0 |
| 1996 | 4 | 0 |
| 1997 | 6 | 0 |
| 1998 | 4 | 0 |
| 1999 | 5 | 0 |
| 2000 | 3 | 0 |
| 2001 | 3 | 1 |
| 2002 | 7 | 5 |
| 2003 | 1 | 3 |
| 2004 | 5 | 7 |
| 2005 | 0 | 5 |
| 2006 | 3 | 7 |
| 2007 | 8 | 9 |
| 2008 | 6 | 6 |
| 2009 | 3 | 5 |
| 2010 | 5 | 5 |
| 2011 | 5 | 8 |
| 2012 | 4 | 5 |
| 2013 | 6 | 11 |
| 2014 | 3 | 9 |
| 2015 | 4 | 4 |
| 2016 | 2 | 6 |
| 2017 | 2 | 6 |
| 2018 | 4 | 13 |
| 2019 | 5 | 13 |
| 2020 | 10 | 21 |
| 2021 | 9 | 40 |
| 2022 | 13 | 41 |
| 2023 | 15 | 46 |
| 2024 | 15 | 30 |
| 2025 | 20 | 18 |
| 2026 | 16 | 14 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Formulations and processes for treating water from impacted sources25 Aug 2026US 12,714,991 B2Brown University
- Anti-microbial filter18 Aug 2026US 12,708,690 B2Acell Industries Limited
- Porous structure such as for filters, and making the same21 Jul 2026US 12,685,951 B2Corning Incorporated
- Air filter medium, filter pack, air filter unit, and method for producing the same14 Jul 2026US 12,678,723 B2Daikin Industries, Ltd.
- Coating solution14 Jul 2026US 12,678,767 B2Nittetsu Mining Co., Ltd.
- Highly transparent thin polyvinyl alcohol aerogels and manufacture thereof20 Aug 2026US 2026/0242558 A1Northeastern University
- Water filter and method of making the same23 Jul 2026US 2026/0208112 A1A. O. Smith Corporation
- Filter containing pharmaceutical salt for a face mask, breathable face mask containing the filter, and method of manufacturing18 Jun 2026US 2026/0166349 A1
- Vacuum cleaner filter bag and method for preparing the vacuum cleaner filter bag11 Jun 2026US 2026/0158426 A1Essilor International
- Biochar materials for abatement of pollutants4 Jun 2026US 2026/0151717 A1AbTech Industries, Inc.
Most cited
By later US patents
- Deformable well screen320US 5,901,789 AShell Oil Company · 1999
- Deformable well screen218US 6,012,522 AShell Oil Company · 2000
- Method of making polytetrafluoroethylene composite sheet203US 4,153,661 AMinnesota Mining and Manufacturing Company · 1979
- Filter sheet material for passenger cabins in motor vehicles112US 5,350,443 A1994
- Filter sheet material109US 4,510,193 A1985