B01D 29/54
Arranged concentrically or coaxially
Official title: arranged concentrically or coaxially
B01D29/54 (Arranged concentrically or coaxially) appears on 498 US grants and 344 published applications in this corpus.
Search patents in B01D- Granted patents
- 498
- Published applications
- 344
- Assignees
- 296
- Inventors
- 977
- Latest grant
- 4 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 10 | 0 |
| 1977 | 13 | 0 |
| 1978 | 6 | 0 |
| 1979 | 2 | 0 |
| 1980 | 5 | 0 |
| 1981 | 11 | 0 |
| 1982 | 5 | 0 |
| 1983 | 3 | 0 |
| 1984 | 8 | 0 |
| 1985 | 11 | 0 |
| 1986 | 11 | 0 |
| 1987 | 11 | 0 |
| 1988 | 14 | 0 |
| 1989 | 8 | 0 |
| 1990 | 11 | 0 |
| 1991 | 9 | 0 |
| 1992 | 13 | 0 |
| 1993 | 12 | 0 |
| 1994 | 4 | 0 |
| 1995 | 7 | 0 |
| 1996 | 10 | 0 |
| 1997 | 16 | 0 |
| 1998 | 16 | 0 |
| 1999 | 14 | 0 |
| 2000 | 11 | 0 |
| 2001 | 18 | 1 |
| 2002 | 14 | 16 |
| 2003 | 15 | 11 |
| 2004 | 9 | 17 |
| 2005 | 6 | 17 |
| 2006 | 8 | 20 |
| 2007 | 8 | 21 |
| 2008 | 8 | 13 |
| 2009 | 9 | 9 |
| 2010 | 10 | 23 |
| 2011 | 8 | 10 |
| 2012 | 14 | 21 |
| 2013 | 11 | 12 |
| 2014 | 6 | 14 |
| 2015 | 4 | 14 |
| 2016 | 12 | 5 |
| 2017 | 12 | 11 |
| 2018 | 9 | 9 |
| 2019 | 10 | 16 |
| 2020 | 12 | 13 |
| 2021 | 14 | 23 |
| 2022 | 9 | 8 |
| 2023 | 13 | 15 |
| 2024 | 10 | 12 |
| 2025 | 3 | 10 |
| 2026 | 5 | 3 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Water treatment system and method4 Aug 2026US 12,697,567 B2Drops Tech 2015 Ltd
- Health meter30 Jun 2026US 12,667,800 B2Eagle Xience Technologies Limited
- Single-use device for the separation or filtering of a large volume of a mixture of substances5 May 2026US 12,616,920 B2Sartorius Stedim Biotech GmbH
- Filtration systems with selective pulse control13 Jan 2026US 12,521,664 B2Donaldson Company, Inc.
- Filter assembly including separate fuel and water flow paths6 Jan 2026US 12,515,152 B2Cummins Filtration Inc.
- Composite filter and water purifier including same4 Jun 2026US 2026/0152414 A1Coway Co., Ltd.
- Filter element with integrated drain filter21 May 2026US 2026/0138060 A1Donaldson Company, Inc.
- Oil Filter22 Jan 2026US 2026/0021428 A1Illinois Tool Works Inc.
- Filter device and filtration device27 Nov 2025US 2025/0360439 A1Yamashin-Filter Corp.
- Systems and methods for filtration16 Oct 2025US 2025/0319441 A1BendBio, Inc.
Most cited
By later US patents
- Deformable well screen320US 5,901,789 AShell Oil Company · 1999
- Deformable well screen218US 6,012,522 AShell Oil Company · 2000
- Multi-element cylindrical filter with equalized flow185US 6,511,599 B2Nelson Industries, Inc. · 2003
- Filter cartridge with a connector seal179US 4,609,465 APall Corporation · 1986
- Blood filter with concentric pleats and method of use111US 5,651,765 AAvecor Cardiovascular, Inc. · 1997