B01D 29/012
Making filtering elements
Official title: {Making filtering elements (making bag, cage, hose, tube, sleeve or like filtering elements B01D29/111)}
B01D29/012 (Making filtering elements) appears on 409 US grants and 253 published applications in this corpus.
Search patents in B01D- Granted patents
- 409
- Published applications
- 253
- Assignees
- 220
- Inventors
- 643
- Latest grant
- 28 Jul 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 4 | 0 |
| 1977 | 1 | 0 |
| 1978 | 3 | 0 |
| 1979 | 4 | 0 |
| 1980 | 4 | 0 |
| 1981 | 6 | 0 |
| 1982 | 5 | 0 |
| 1983 | 3 | 0 |
| 1984 | 5 | 0 |
| 1985 | 3 | 0 |
| 1986 | 3 | 0 |
| 1987 | 6 | 0 |
| 1988 | 5 | 0 |
| 1989 | 7 | 0 |
| 1990 | 11 | 0 |
| 1991 | 13 | 0 |
| 1992 | 6 | 0 |
| 1993 | 9 | 0 |
| 1994 | 8 | 0 |
| 1995 | 10 | 0 |
| 1996 | 9 | 0 |
| 1997 | 17 | 0 |
| 1998 | 17 | 0 |
| 1999 | 21 | 0 |
| 2000 | 16 | 0 |
| 2001 | 16 | 7 |
| 2002 | 21 | 31 |
| 2003 | 15 | 16 |
| 2004 | 17 | 15 |
| 2005 | 9 | 11 |
| 2006 | 10 | 4 |
| 2007 | 4 | 8 |
| 2008 | 5 | 10 |
| 2009 | 5 | 7 |
| 2010 | 1 | 6 |
| 2011 | 4 | 6 |
| 2012 | 5 | 9 |
| 2013 | 6 | 4 |
| 2014 | 10 | 11 |
| 2015 | 6 | 13 |
| 2016 | 4 | 15 |
| 2017 | 6 | 8 |
| 2018 | 8 | 10 |
| 2019 | 6 | 10 |
| 2020 | 15 | 16 |
| 2021 | 13 | 11 |
| 2022 | 8 | 6 |
| 2023 | 5 | 3 |
| 2024 | 6 | 4 |
| 2025 | 7 | 8 |
| 2026 | 1 | 4 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Reactive adhesives for filtration applications28 Jul 2026US 12,691,398 B2Zephyros, Inc.
- Injection molded screening apparatuses and methods9 Dec 2025US 12,491,537 B2Derrick Corporation
- Apparatus, system and/or method for modular filter screens16 Sep 2025US 12,415,148 B2Schlumberger Technology Corporation
- Fluid drainage system with textured core sheets1 Jul 2025US 12,343,661 B2Eljen Corporation
- Method and apparatus for producing a filter device1 Apr 2025US 12,263,421 B2Robert Bosch GmbH
- Method for manufacturing filter unit17 Sep 2026US 2026/0273440 A1Seiko Epson Corporation
- Positive pressure filtration apparatus and method20 Aug 2026US 2026/0241314 A1Scientific Plastic Products, Inc.
- Increased flow screen panel16 Apr 2026US 2026/0102720 A1
- Flexible end cap for ceramic flat filters2 Apr 2026US 2026/0091327 A1Cerafiltec Germany GmbH
- Integration of porous and permeable feed spacers onto membrane surfaces23 Oct 2025US 2025/0325924 A1New York University in Abu Dhabi Corporation
Most cited
By later US patents
- Process for making hermetically sealed filter units and filters made thereby163US 4,113,627 AFiltertek Inc. · 1978
- Fluid filter element and support148US 4,498,989 ANippondenso Co., Ltd. · 1985
- Molten metal filter medium and method for making same133US 5,369,063 AMetaullics Systems Co., L.P. · 1994
- Blood filter with concentric pleats and method of use111US 5,651,765 AAvecor Cardiovascular, Inc. · 1997
- Filter element for filtering fluid and method of producing same108US 4,430,223 ANippondenso Co., Ltd. · 1984