B01D 29/58
Arranged concentrically or coaxially
Official title: arranged concentrically or coaxially
B01D29/58 (Arranged concentrically or coaxially) appears on 735 US grants and 722 published applications in this corpus.
Search patents in B01D- Granted patents
- 735
- Published applications
- 722
- Assignees
- 395
- Inventors
- 1,430
- Latest grant
- 29 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 8 | 0 |
| 1978 | 8 | 0 |
| 1979 | 5 | 0 |
| 1980 | 3 | 0 |
| 1981 | 12 | 0 |
| 1982 | 5 | 0 |
| 1983 | 2 | 0 |
| 1984 | 4 | 0 |
| 1985 | 5 | 0 |
| 1986 | 3 | 0 |
| 1987 | 5 | 0 |
| 1988 | 8 | 0 |
| 1989 | 12 | 0 |
| 1990 | 14 | 0 |
| 1991 | 7 | 0 |
| 1992 | 9 | 0 |
| 1993 | 14 | 0 |
| 1994 | 10 | 0 |
| 1995 | 7 | 0 |
| 1996 | 10 | 0 |
| 1997 | 19 | 0 |
| 1998 | 16 | 0 |
| 1999 | 17 | 0 |
| 2000 | 12 | 0 |
| 2001 | 17 | 11 |
| 2002 | 26 | 22 |
| 2003 | 25 | 27 |
| 2004 | 15 | 23 |
| 2005 | 11 | 19 |
| 2006 | 19 | 18 |
| 2007 | 14 | 17 |
| 2008 | 8 | 15 |
| 2009 | 4 | 22 |
| 2010 | 10 | 23 |
| 2011 | 17 | 23 |
| 2012 | 22 | 33 |
| 2013 | 17 | 37 |
| 2014 | 19 | 20 |
| 2015 | 17 | 32 |
| 2016 | 16 | 23 |
| 2017 | 25 | 39 |
| 2018 | 21 | 49 |
| 2019 | 29 | 27 |
| 2020 | 33 | 44 |
| 2021 | 32 | 41 |
| 2022 | 25 | 45 |
| 2023 | 20 | 23 |
| 2024 | 36 | 43 |
| 2025 | 19 | 25 |
| 2026 | 21 | 21 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Automatic swimming pool cleaners especially adept at climbing and cleaning pool stairs29 Sep 2026US 12,747,605 B2Zodiac Pool Systems LLC
- Two stage filter cartridge with an expandable frame facilitating replacement of the filter media1 Sep 2026US 12,722,105 B2Nanodocks Technology Limited
- Filter cartridge and filter having same25 Aug 2026US 12,714,954 B2Solventum Intellectual Properties Company
- Water treatment system and method4 Aug 2026US 12,697,567 B2Drops Tech 2015 Ltd
- Filter device23 Jun 2026US 12,661,607 B2Hydac Filtertechnik GmbH
- Filter arrangements for liquids and methods of use1 Oct 2026US 2026/0295475 A1Donaldson Company, Inc.
- Filter device for removing particles from a liquid24 Sep 2026US 2026/0284560 A1Mst Nl B.V.
- Filter cartridge27 Aug 2026US 2026/0250158 A1Gopala AG
- Water filtration device30 Jul 2026US 2026/0216623 A1LG Electronics Inc.
- Multistage filter with hydrophobic screen23 Jul 2026US 2026/0208080 A1Atmus Filtration Inc.
Most cited
By later US patents
- Deformable well screen320US 5,901,789 AShell Oil Company · 1999
- Environmentally friendly filter cartridge275US 5,685,985 ABaldwin Filters, Inc. · 1997
- Deformable well screen218US 6,012,522 AShell Oil Company · 2000
- Open flow filter with safety element214US 6,416,561 B1Nelson Industries, Inc. · 2002
- Multi-element cylindrical filter with equalized flow185US 6,511,599 B2Nelson Industries, Inc. · 2003