B01D 29/055
Ring shaped
Official title: {ring shaped}
B01D29/055 (Ring shaped) appears on 106 US grants and 59 published applications in this corpus.
Search patents in B01D- Granted patents
- 106
- Published applications
- 59
- Assignees
- 70
- Inventors
- 203
- Latest grant
- 20 May 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 3 | 0 |
| 1979 | 1 | 0 |
| 1980 | 2 | 0 |
| 1981 | 0 | 0 |
| 1982 | 2 | 0 |
| 1983 | 3 | 0 |
| 1984 | 2 | 0 |
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 3 | 0 |
| 1989 | 2 | 0 |
| 1990 | 4 | 0 |
| 1991 | 2 | 0 |
| 1992 | 1 | 0 |
| 1993 | 3 | 0 |
| 1994 | 1 | 0 |
| 1995 | 2 | 0 |
| 1996 | 3 | 0 |
| 1997 | 9 | 0 |
| 1998 | 5 | 0 |
| 1999 | 7 | 0 |
| 2000 | 2 | 0 |
| 2001 | 5 | 0 |
| 2002 | 2 | 2 |
| 2003 | 1 | 2 |
| 2004 | 1 | 6 |
| 2005 | 1 | 4 |
| 2006 | 1 | 10 |
| 2007 | 1 | 1 |
| 2008 | 4 | 1 |
| 2009 | 0 | 1 |
| 2010 | 2 | 1 |
| 2011 | 2 | 1 |
| 2012 | 2 | 2 |
| 2013 | 1 | 2 |
| 2014 | 1 | 0 |
| 2015 | 1 | 2 |
| 2016 | 2 | 1 |
| 2017 | 3 | 4 |
| 2018 | 2 | 0 |
| 2019 | 2 | 6 |
| 2020 | 2 | 2 |
| 2021 | 2 | 5 |
| 2022 | 1 | 1 |
| 2023 | 2 | 2 |
| 2024 | 3 | 1 |
| 2025 | 2 | 2 |
By publication year. Applications have been published since 2001.
Recent patents
- Subsea filter20 May 2025US 12,303,809 B2Blakemere Engineering Pty Ltd
- Filter insert and sample vial using the same1 Apr 2025US 12,263,422 B2Reaction Analytics Inc.
- Filter retaining plug30 Jul 2024US 12,049,910 B2Hamilton Sundstrand Corporation
- Integrated module with stage one and stage two filters combined in single housing5 Mar 2024US 11,918,941 B2Cummins Filtration IP, Inc.
- Filtration head for a filter system and funnel for use in conjunction with a filtration head9 Jan 2024US 11,865,477 B2Merck Patent GmbH
- Filter insert and sample vial using the same10 Jul 2025US 2025/0222377 A1Reaction Analytics Inc.
- Water pump and filter assembly for water pump3 Jul 2025US 2025/0214005 A1Zhejiang Ele Smart Technology Co., Ltd.
- Dust filter for gas meter29 Aug 2024US 2024/0288294 A1Sagemcom Energy & Telecom SAS
- Subsea filter26 Oct 2023US 2023/0338878 A1Blakemere Engineering Pty Ltd
- Filter insert and sample vial using the same20 Jul 2023US 2023/0226469 A1Reaction Analytics Inc.
Most cited
By later US patents
- Dynamic filter system78US 5,679,249 APall Corporation · 1997
- Rotary filtration device and filter pack therefor74US 5,254,250 AMembrex, Inc. · 1993
- Rotary disc filtration device73US 5,143,630 AMembrex, Inc. · 1992
- Deep fryer and filtration system55US 5,247,876 A1993
- Bowl-cartridge filter having interlock mechanism and methods54US 6,752,924 B2Donaldson Company, Inc. · 2004