B01D 2239/0233
Island-in-sea
B01D2239/0233 (Island-in-sea) appears on 123 US grants and 189 published applications in this corpus.
Search patents in B01D- Granted patents
- 123
- Published applications
- 189
- Assignees
- 114
- Inventors
- 476
- Latest grant
- 11 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1985 | 1 | 0 |
| 1986 | 1 | 0 |
| 1987 | 1 | 0 |
| 1988 | 3 | 0 |
| 1989 | 3 | 0 |
| 1990 | 0 | 0 |
| 1991 | 1 | 0 |
| 1992 | 1 | 0 |
| 1993 | 1 | 0 |
| 1994 | 1 | 0 |
| 1995 | 2 | 0 |
| 1996 | 2 | 0 |
| 1997 | 7 | 0 |
| 1998 | 5 | 0 |
| 1999 | 11 | 0 |
| 2000 | 5 | 0 |
| 2001 | 2 | 0 |
| 2002 | 2 | 0 |
| 2003 | 0 | 1 |
| 2004 | 1 | 1 |
| 2005 | 0 | 1 |
| 2006 | 1 | 2 |
| 2007 | 0 | 5 |
| 2008 | 1 | 3 |
| 2009 | 0 | 3 |
| 2010 | 1 | 6 |
| 2011 | 4 | 3 |
| 2012 | 4 | 4 |
| 2013 | 1 | 6 |
| 2014 | 1 | 3 |
| 2015 | 2 | 6 |
| 2016 | 1 | 4 |
| 2017 | 3 | 2 |
| 2018 | 1 | 1 |
| 2019 | 2 | 7 |
| 2020 | 3 | 11 |
| 2021 | 1 | 24 |
| 2022 | 1 | 30 |
| 2023 | 6 | 34 |
| 2024 | 12 | 15 |
| 2025 | 18 | 6 |
| 2026 | 10 | 11 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Biodegradable filters11 Aug 2026US 12,702,942 B2NxtNano, LLC
- Biodegradable composite filter media for air filters and manufacturing method thereof16 Jun 2026US 12,654,118 B2Nam Yang Non-Woven Fabric Co., Ltd.
- Methods, apparatuses, and systems for providing personal protective equipment2 Jun 2026US 12,642,315 B2Honeywell Safety Products USA, Inc.
- Filter media, composites, and face mask systems using same26 May 2026US 12,636,524 B2Donaldson Company, Inc.
- Antimicrobial filter media19 May 2026US 12,629,621 B2Purafil, Inc.
- Device for aquatic microplastics removal20 Aug 2026US 2026/0242250 A1PolyGone Systems, Inc.
- Filtration medium14 May 2026US 2026/0131269 A1
- Filter medium and method of production thereof7 May 2026US 2026/0126021 A1Neenah Gessner GmbH
- Meltblown material formed from bicomponent polyolefin and polyester fibers30 Apr 2026US 2026/0117436 A1O&M Halyard, Inc.
- Material for a filter medium and filter comprising said material for a filter medium16 Apr 2026US 2026/0102724 A1Carl Freudenberg KG
Most cited
By later US patents
- Bicomponent fibers and webs made therefrom302US 4,795,668 AMinnesota Mining and Manufacturing Company · 1989
- Method of charging electret filter media289US 5,496,507 AMinnesota Mining and Manufacturing Company · 1996
- Fibrous structures containing immobilized particulate matter181US 5,486,410 AHoechst Celanese Corporation · 1996
- Fibrous webs having enhanced electret properties174US 5,908,598 AMinnesota Mining and Manufacturing Company · 1999
- Water impervious materials160US 4,522,203 AChicopee · 1985