B01D 25/001
Making filtering elements not provided for elsewhere
Official title: {Making filtering elements not provided for elsewhere}
B01D25/001 (Making filtering elements not provided for elsewhere) appears on 120 US grants and 68 published applications in this corpus.
Search patents in B01D- Granted patents
- 120
- Published applications
- 68
- Assignees
- 59
- Inventors
- 207
- Latest grant
- 31 Mar 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 4 | 0 |
| 1977 | 4 | 0 |
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 2 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 2 | 0 |
| 1984 | 1 | 0 |
| 1985 | 3 | 0 |
| 1986 | 0 | 0 |
| 1987 | 5 | 0 |
| 1988 | 3 | 0 |
| 1989 | 0 | 0 |
| 1990 | 3 | 0 |
| 1991 | 3 | 0 |
| 1992 | 1 | 0 |
| 1993 | 3 | 0 |
| 1994 | 1 | 0 |
| 1995 | 3 | 0 |
| 1996 | 2 | 0 |
| 1997 | 4 | 0 |
| 1998 | 9 | 0 |
| 1999 | 6 | 0 |
| 2000 | 2 | 0 |
| 2001 | 2 | 1 |
| 2002 | 2 | 2 |
| 2003 | 0 | 3 |
| 2004 | 0 | 2 |
| 2005 | 3 | 1 |
| 2006 | 2 | 7 |
| 2007 | 2 | 2 |
| 2008 | 2 | 11 |
| 2009 | 2 | 1 |
| 2010 | 1 | 4 |
| 2011 | 5 | 2 |
| 2012 | 4 | 6 |
| 2013 | 6 | 4 |
| 2014 | 2 | 2 |
| 2015 | 5 | 1 |
| 2016 | 3 | 1 |
| 2017 | 3 | 3 |
| 2018 | 3 | 3 |
| 2019 | 4 | 4 |
| 2020 | 3 | 0 |
| 2021 | 0 | 0 |
| 2022 | 0 | 1 |
| 2023 | 2 | 2 |
| 2024 | 1 | 4 |
| 2025 | 0 | 1 |
| 2026 | 1 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Surface coated filter and method31 Mar 2026US 12,589,347 B2Baldwin Filters, Inc.
- Surface coated filter and method12 Mar 2024US 11,925,892 B2Baldwin Filters, Inc.
- Filter arrangements; housings; assemblies; and, methods20 Jun 2023US 11,679,352 B2Donaldson Company, Inc.
- Surface coated filter method21 Feb 2023US 11,583,796 B2Baldwin Filters, Inc.
- Z-filter media pack arrangement; and, methods16 Jun 2020US RE48,050 E1Donaldson Company, Inc.
- Uniform spray-coating, cumulatively-stacking and squeezing solid-liquid separation system26 Jun 2025US 2025/0205619 A1Beijing Jinyu Mangrove Environmental Protection Technology Co., Ltd.
- Filter11 Jul 2024US 2024/0226776 A1Alfa Laval Moatti
- Microplastic filter for a washing machine11 Jul 2024US 2024/0229338 A9
- Surface coated filter and method30 May 2024US 2024/0173662 A1Baldwin Filters, Inc.
- Microplastic filter for a washing machine25 Apr 2024US 2024/0133111 A1
Most cited
By later US patents
- Inline filter apparatus526US 5,820,646 ADonaldson Company, Inc. · 1998
- Filter element incorporating a handle member390US 6,235,195 B1Donaldson Company, Inc. · 2001
- Conical filter341US 5,902,364 ADonaldson Company, Inc. · 1999
- Slanted inline filter319US 5,772,883 ADonaldson Company, Inc. · 1998
- Rolled liquid filter using fluted media291US 5,895,574 ADonaldson Company, Inc. · 1999