B01D 27/146
Connected in series
Official title: {connected in series}
B01D27/146 (Connected in series) appears on 94 US grants and 112 published applications in this corpus.
Search patents in B01D- Granted patents
- 94
- Published applications
- 112
- Assignees
- 68
- Inventors
- 232
- Latest grant
- 25 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 1 | 0 |
| 1987 | 1 | 0 |
| 1988 | 1 | 0 |
| 1989 | 2 | 0 |
| 1990 | 1 | 0 |
| 1991 | 0 | 0 |
| 1992 | 1 | 0 |
| 1993 | 0 | 0 |
| 1994 | 1 | 0 |
| 1995 | 1 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 2 | 0 |
| 2000 | 0 | 0 |
| 2001 | 1 | 0 |
| 2002 | 1 | 4 |
| 2003 | 3 | 5 |
| 2004 | 3 | 2 |
| 2005 | 1 | 3 |
| 2006 | 5 | 6 |
| 2007 | 1 | 4 |
| 2008 | 2 | 4 |
| 2009 | 0 | 4 |
| 2010 | 2 | 3 |
| 2011 | 3 | 3 |
| 2012 | 4 | 4 |
| 2013 | 2 | 3 |
| 2014 | 0 | 2 |
| 2015 | 4 | 4 |
| 2016 | 5 | 9 |
| 2017 | 4 | 2 |
| 2018 | 2 | 5 |
| 2019 | 2 | 5 |
| 2020 | 5 | 9 |
| 2021 | 5 | 8 |
| 2022 | 5 | 4 |
| 2023 | 9 | 5 |
| 2024 | 8 | 7 |
| 2025 | 2 | 4 |
| 2026 | 2 | 3 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Filter assembly25 Aug 2026US 12,716,481 B2Filtran LLC
- Water treatment system and method4 Aug 2026US 12,697,567 B2Drops Tech 2015 Ltd
- Multiple threaded connector for filter8 Jul 2025US 12,350,612 B2Cummins Filtration IP, Inc.
- Water treatment dispensing apparatus3 Jun 2025US 12,319,596 B2Crosstex International, Inc.
- Closed bioprocessing device24 Dec 2024US 12,172,108 B2EMD Millipore Corporation
- Filter cartridge27 Aug 2026US 2026/0250158 A1Gopala AG
- Composite filter cartridge7 May 2026US 2026/0124559 A1Kemflo International Co., Ltd.
- Filter insert with improved filter performance under operating conditions19 Mar 2026US 2026/0077280 A1
- Multi-layer porous polymeric membrane and related filters and methods17 Jul 2025US 2025/0229202 A1Entegris, Inc.
- Closed Bioprocessing Device29 May 2025US 2025/0170500 A1EMD Millipore Corporation
Most cited
By later US patents
- Oil filter with inner and outer coaxial filter elements140US 5,342,511 ABaldwin Filters, Inc. · 1994
- Apparatus for filtering impurities out of fluid118US 6,478,958 B1Baldwin Filters, Inc. · 2002
- Apparatus for filtering impurities out of fluid96US 6,787,033 B2Baldwin Filters, Inc. · 2004
- Combination particulate and acid-neutralizing filter77US 6,969,461 B2Baldwin Filters, Inc. · 2005
- Dual flow and dual stage lubricant filter assembly67US 5,078,877 ABaldwin Filters, Inc. · 1992