B01D 27/144
Arranged concentrically or coaxially
Official title: {arranged concentrically or coaxially}
B01D27/144 (Arranged concentrically or coaxially) appears on 67 US grants and 44 published applications in this corpus.
Search patents in B01D- Granted patents
- 67
- Published applications
- 44
- Assignees
- 40
- Inventors
- 106
- Latest grant
- 28 Jul 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 1 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 1 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 2 | 0 |
| 1989 | 1 | 0 |
| 1990 | 2 | 0 |
| 1991 | 4 | 0 |
| 1992 | 1 | 0 |
| 1993 | 3 | 0 |
| 1994 | 1 | 0 |
| 1995 | 1 | 0 |
| 1996 | 0 | 0 |
| 1997 | 2 | 0 |
| 1998 | 2 | 0 |
| 1999 | 5 | 0 |
| 2000 | 1 | 0 |
| 2001 | 0 | 0 |
| 2002 | 2 | 3 |
| 2003 | 1 | 1 |
| 2004 | 1 | 1 |
| 2005 | 2 | 3 |
| 2006 | 3 | 4 |
| 2007 | 0 | 2 |
| 2008 | 2 | 2 |
| 2009 | 0 | 1 |
| 2010 | 2 | 3 |
| 2011 | 0 | 0 |
| 2012 | 4 | 2 |
| 2013 | 2 | 2 |
| 2014 | 1 | 1 |
| 2015 | 1 | 1 |
| 2016 | 2 | 2 |
| 2017 | 0 | 0 |
| 2018 | 2 | 1 |
| 2019 | 1 | 2 |
| 2020 | 0 | 4 |
| 2021 | 2 | 5 |
| 2022 | 2 | 0 |
| 2023 | 4 | 2 |
| 2024 | 1 | 1 |
| 2025 | 0 | 1 |
| 2026 | 1 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Modular graphene oxide-based microbial fuel filter and process of making and using same28 Jul 2026US 12,691,397 B2The United States of America as represented by the Secretary of the Air Force
- Spin-on fluid treatment device and methods10 Dec 2024US 12,161,959 B2Donaldson Company, Inc.
- Liquid treatment device5 Dec 2023US 11,833,452 B2Canpro Water Treatment Inc.
- Filter and method for filtering a liquid5 Sep 2023US 11,745,123 B2Hubb Filters, Inc.
- Filter element having two filter media9 May 2023US 11,642,612 B2Robert Bosch GmbH
- Spin-on fluid treatment device and methods27 Mar 2025US 2025/0099885 A1Donaldson Company, Inc.
- Modular Graphene Oxide-Based Microbial Fuel Filter and Process of Making and Using Same7 Mar 2024US 2024/0075415 A1Government of the United States as Represented by the Secretary of the Air Force
- Filter media, filter cartridge containing filter media, and method of filtering water5 Jan 2023US 2023/0002245 A1PepsiCo, Inc.
- Filter media, filter cartridge containing filter media, and method of filtering water5 Jan 2023US 2023/0002246 A1PepsiCo, Inc.
- Filter and method for filtering a liquid25 Nov 2021US 2021/0362079 A1Hubb Filters, Inc.
Most cited
By later US patents
- Key system for filter assembly148US 5,035,797 AStanadyne Automotive Corp. · 1991
- Lubricant filter for internal combustion engines98US 4,755,289 ATecnocar S p A · 1988
- Lubricant filter assembly93US 4,738,776 ACummins Engine Company, Inc. · 1988
- Oil filter I81US 4,997,556 AMitsubishi Oil Co., Ltd. · 1991
- Fuel filter key system81US 5,186,829 AStanadyne Automotive Corp. · 1993