B01D 29/885
With internal recirculation through the filtering element
Official title: {with internal recirculation through the filtering element (B01D37/02 takes precedence)}
B01D29/885 (With internal recirculation through the filtering element) appears on 85 US grants and 27 published applications in this corpus.
Search patents in B01D- Granted patents
- 85
- Published applications
- 27
- Assignees
- 59
- Inventors
- 145
- Latest grant
- 7 Jul 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 3 | 0 |
| 1978 | 0 | 0 |
| 1979 | 2 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 2 | 0 |
| 1983 | 1 | 0 |
| 1984 | 2 | 0 |
| 1985 | 4 | 0 |
| 1986 | 2 | 0 |
| 1987 | 2 | 0 |
| 1988 | 3 | 0 |
| 1989 | 3 | 0 |
| 1990 | 10 | 0 |
| 1991 | 6 | 0 |
| 1992 | 3 | 0 |
| 1993 | 4 | 0 |
| 1994 | 2 | 0 |
| 1995 | 1 | 0 |
| 1996 | 5 | 0 |
| 1997 | 2 | 0 |
| 1998 | 2 | 0 |
| 1999 | 3 | 0 |
| 2000 | 0 | 0 |
| 2001 | 2 | 2 |
| 2002 | 2 | 1 |
| 2003 | 0 | 1 |
| 2004 | 1 | 0 |
| 2005 | 0 | 1 |
| 2006 | 0 | 1 |
| 2007 | 0 | 2 |
| 2008 | 1 | 1 |
| 2009 | 1 | 0 |
| 2010 | 0 | 0 |
| 2011 | 1 | 1 |
| 2012 | 1 | 1 |
| 2013 | 1 | 1 |
| 2014 | 1 | 0 |
| 2015 | 0 | 4 |
| 2016 | 1 | 2 |
| 2017 | 3 | 0 |
| 2018 | 0 | 1 |
| 2019 | 3 | 1 |
| 2020 | 1 | 1 |
| 2021 | 0 | 0 |
| 2022 | 0 | 1 |
| 2023 | 0 | 1 |
| 2024 | 0 | 2 |
| 2025 | 1 | 0 |
| 2026 | 2 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Agricultural sampling system and related methods7 Jul 2026US 12,673,278 B2Precision Planting LLC
- System and method for separation of organics and liquids from waste material19 May 2026US 12,629,735 B2Komar Industries, Inc.
- Method for removing foreign material from carbonaceous material dispersion11 Nov 2025US 12,466,959 B2Refine Holdings Co., Ltd.
- Method for screening and a screening apparatus11 Aug 2020US 10,738,420 B2Red Wire Oy
- Chip conveyor and machine tool31 Dec 2019US 10,518,374 B2Dmg Mori Co., Ltd.
- System and method for separation of organics and liquids from waste material17 Sep 2026US 2026/0273598 A1Komar Industries, Inc.
- Method for removing foreign material from carbonaceous material dispersion5 Feb 2026US 2026/0035568 A1Refine Holdings Co., Ltd.
- A separator with bypass protection4 Jul 2024US 2024/0216840 A1Inheriting Earth Limited
- Agricultural sampling system and related methods13 Jun 2024US 2024/0189743 A1Precision Planting LLC
- Inline filter cap with modulated flowpath16 Nov 2023US 2023/0364534 A1Cytiva Sweden AB
Most cited
By later US patents
- Pneumatic hydro-pulse filter system and method of operation81US 4,552,669 AMott Metallurgical Corporation · 1985
- Rotary filtration device with flow-through inner member35US 5,944,998 AMembrex, Inc. · 1999
- Apparatus for treating articles with solution to remove solids and then filtering the solution34US 4,784,169 AChemcut Corporation · 1988
- Ceramic filter modules in series with piston backwash30US 4,957,625 AToshiba Ceramics Co., Ltd. · 1990
- Process and apparatus for degassing and filtering liquids27US 4,935,151 AE. I. Du Pont de Nemours and Company · 1990