B01D 29/018
Ring shaped
Official title: {ring shaped}
B01D29/018 (Ring shaped) appears on 43 US grants and 33 published applications in this corpus.
Search patents in B01D- Granted patents
- 43
- Published applications
- 33
- Assignees
- 36
- Inventors
- 117
- Latest grant
- 28 Nov 2023
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 1 | 0 |
| 1984 | 1 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 2 | 0 |
| 1988 | 2 | 0 |
| 1989 | 1 | 0 |
| 1990 | 1 | 0 |
| 1991 | 0 | 0 |
| 1992 | 1 | 0 |
| 1993 | 1 | 0 |
| 1994 | 0 | 0 |
| 1995 | 2 | 0 |
| 1996 | 1 | 0 |
| 1997 | 2 | 0 |
| 1998 | 1 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 2 | 0 |
| 2002 | 0 | 1 |
| 2003 | 2 | 3 |
| 2004 | 2 | 1 |
| 2005 | 1 | 5 |
| 2006 | 1 | 2 |
| 2007 | 1 | 0 |
| 2008 | 0 | 2 |
| 2009 | 1 | 0 |
| 2010 | 1 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 1 | 0 |
| 2014 | 1 | 0 |
| 2015 | 2 | 0 |
| 2016 | 2 | 6 |
| 2017 | 3 | 1 |
| 2018 | 3 | 1 |
| 2019 | 0 | 2 |
| 2020 | 0 | 3 |
| 2021 | 0 | 1 |
| 2022 | 2 | 2 |
| 2023 | 1 | 0 |
| 2024 | 0 | 1 |
| 2025 | 0 | 2 |
By publication year. Applications have been published since 2001.
Recent patents
- Fluid cell and docking station28 Nov 2023US 11,828,209 B2Mahle International GmbH
- Ring filter element22 Nov 2022US 11,504,654 B2Mahle International GmbH
- Cleaning bucket structure capable for automatically purifying foul water29 Mar 2022US 11,285,408 B2
- Water level sensor device for a fuel filter11 Dec 2018US 10,150,069 B2Mahle International GmbH
- Water straining and chemical additive device for marine vessels and recreational vehicles9 Oct 2018US 10,093,565 B2
- A drain system and a shower or shower cabin11 Dec 2025US 2025/0377170 A1Enduce AB
- Tortuous path filter for the production of transfusion-ready reconstituted plasma7 Aug 2025US 2025/0249154 A1Hemerus Medical, LLC
- Dust filter for gas meter29 Aug 2024US 2024/0288294 A1Sagemcom Energy & Telecom SAS
- Filter assembly for high volume evacuation18 Aug 2022US 2022/0258075 A1Saint-Gobain Performance Plastics Corporation
- Fluid cell and docking station4 Aug 2022US 2022/0243622 A1Mahle International GmbH
Most cited
By later US patents
- Quick-change filter cartridge and head therefor175US 4,735,716 ACuno Corporated · 1988
- Quick-change filter cartridge and head therefor130US 4,877,521 ACuno Incorporated · 1989
- Fluid filter with pleated filter medium31US 4,710,297 AKabushiki Kaisha Tsuchiya Seisakusho · 1987
- Apparatus for separating cell suspension26US 4,968,600 AToray Industries, Inc. · 1990
- Waste water contaminant segregating unit for sewer conduits23US 5,814,216 AJohn Meunier Inc. · 1998