B01D 2239/0225
Side-by-side
B01D2239/0225 (Side-by-side) appears on 55 US grants and 49 published applications in this corpus.
Search patents in B01D- Granted patents
- 55
- Published applications
- 49
- Assignees
- 42
- Inventors
- 152
- Latest grant
- 28 Apr 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1990 | 1 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 1 | 0 |
| 1995 | 1 | 0 |
| 1996 | 2 | 0 |
| 1997 | 6 | 0 |
| 1998 | 3 | 0 |
| 1999 | 6 | 0 |
| 2000 | 2 | 0 |
| 2001 | 2 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 1 | 1 |
| 2005 | 0 | 0 |
| 2006 | 1 | 3 |
| 2007 | 0 | 4 |
| 2008 | 0 | 4 |
| 2009 | 2 | 1 |
| 2010 | 0 | 3 |
| 2011 | 5 | 3 |
| 2012 | 4 | 2 |
| 2013 | 1 | 0 |
| 2014 | 2 | 1 |
| 2015 | 1 | 3 |
| 2016 | 0 | 0 |
| 2017 | 2 | 1 |
| 2018 | 0 | 0 |
| 2019 | 1 | 2 |
| 2020 | 1 | 3 |
| 2021 | 0 | 3 |
| 2022 | 0 | 4 |
| 2023 | 2 | 5 |
| 2024 | 4 | 0 |
| 2025 | 3 | 4 |
| 2026 | 1 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Electret and filter using the same28 Apr 2026US 12,611,650 B2TOYOBO MC Corporation
- Filter media, filters, and methods for making the same21 Oct 2025US 12,447,427 B2Resolute FP Canada, Inc.
- Low leachable fibers and fiber structure15 Jul 2025US 12,359,347 B2Kuraray Co., Ltd.
- Filter media including out-of-plane solid elements, methods of forming them, and uses thereof1 Jul 2025US 12,343,666 B2Hollingsworth & Vose Company
- Filter medium and breather filter structure24 Dec 2024US 12,172,111 B2Donaldson Company, Inc.
- Material for a filter medium and filter comprising said material for a filter medium16 Apr 2026US 2026/0102724 A1Carl Freudenberg KG
- Filter medium and method of producing a filter medium12 Feb 2026US 2026/0042042 A1
- High loft nonwoven material16 Oct 2025US 2025/0320644 A1DelStar Technologies, Inc.
- Filter media including out-of-plane solid elements, methods of forming them, and uses thereof11 Sep 2025US 2025/0281860 A1Hollingsworth & Vose Company
- Method for manufacturing a photocatalytic multi-component fiber and photocatalytic multi-component fiber31 Jul 2025US 2025/0243605 A1PureNat
Most cited
By later US patents
- 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
- Nonwoven filter media for gas126US 5,597,645 AKimberly-Clark Corporation · 1997
- High stiffness nonwoven filter medium121US 5,709,735 AKimberly-Clark Worldwide, Inc. · 1998