B01D 2239/0258
Comprising nanoparticles
Official title: comprising nanoparticles
B01D2239/0258 (Comprising nanoparticles) appears on 103 US grants and 226 published applications in this corpus.
Search patents in B01D- Granted patents
- 103
- Published applications
- 226
- Assignees
- 156
- Inventors
- 524
- Latest grant
- 18 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1994 | 1 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 1 |
| 2002 | 0 | 0 |
| 2003 | 1 | 0 |
| 2004 | 0 | 2 |
| 2005 | 0 | 2 |
| 2006 | 3 | 4 |
| 2007 | 3 | 7 |
| 2008 | 2 | 6 |
| 2009 | 2 | 3 |
| 2010 | 1 | 8 |
| 2011 | 2 | 7 |
| 2012 | 3 | 6 |
| 2013 | 6 | 7 |
| 2014 | 6 | 4 |
| 2015 | 3 | 4 |
| 2016 | 2 | 2 |
| 2017 | 1 | 2 |
| 2018 | 2 | 4 |
| 2019 | 3 | 3 |
| 2020 | 3 | 6 |
| 2021 | 7 | 24 |
| 2022 | 7 | 31 |
| 2023 | 6 | 53 |
| 2024 | 8 | 15 |
| 2025 | 21 | 15 |
| 2026 | 10 | 10 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Anti-microbial filter18 Aug 2026US 12,708,690 B2Acell Industries Limited
- Multifunctional filter materials30 Jun 2026US 12,667,143 B2Khalifa University of Science and Technology
- Non-passive anti-viral and nanofilter based respirators2 Jun 2026US 12,643,063 B1University of Louisville Research Foundation, Inc.
- Bacterial cellulose-based air filter mesh and use thereof14 Apr 2026US 12,599,857 B2Baoding Guangyu Fruit Processing Food Co., Ltd.
- Fiberglass filter element containing zinc oxide-based composite nanoparticles and method for producing the same14 Apr 2026US 12,600,661 B2Chongqing Institute of East China Normal University
- Multifunctional filter materials8 Oct 2026US 2026/0305741 A1Khalifa University of Science and Technology
- Filter containing pharmaceutical salt for a face mask, breathable face mask containing the filter, and method of manufacturing18 Jun 2026US 2026/0166349 A1
- Filter medium and method of production thereof7 May 2026US 2026/0126021 A1Neenah Gessner GmbH
- Systems and methods for making fibrous materials30 Apr 2026US 2026/0117433 A1DelStar Technologies, Inc.
- Dual-layer gas filters and systems and methods for making the same9 Apr 2026US 2026/0097341 A1DelStar Technologies, Inc.
Most cited
By later US patents
- Filter element and method83US 8,021,455 B2Donaldson Company, Inc. · 2011
- Electrostatic air filter74US 7,311,752 B2Argonide Corporation · 2007
- Nanofiber filter facemasks and cabin filters39US 8,303,693 B2The Hong Kong Polytechnic University · 2012
- Porous sintered composite materials36US 7,112,237 B2Entegris, Inc. · 2006
- Durable charged particle coatings and materials26US 7,141,518 B2Kimberly-Clark Worldwide, Inc. · 2006