B01D 29/46
Of flat, stacked bodies
Official title: of flat, stacked bodies
B01D29/46 (Of flat, stacked bodies) appears on 211 US grants and 102 published applications in this corpus.
Search patents in B01D- Granted patents
- 211
- Published applications
- 102
- Assignees
- 118
- Inventors
- 330
- Latest grant
- 2 Jun 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 3 | 0 |
| 1978 | 4 | 0 |
| 1979 | 5 | 0 |
| 1980 | 1 | 0 |
| 1981 | 5 | 0 |
| 1982 | 2 | 0 |
| 1983 | 3 | 0 |
| 1984 | 4 | 0 |
| 1985 | 4 | 0 |
| 1986 | 7 | 0 |
| 1987 | 14 | 0 |
| 1988 | 10 | 0 |
| 1989 | 9 | 0 |
| 1990 | 5 | 0 |
| 1991 | 8 | 0 |
| 1992 | 7 | 0 |
| 1993 | 3 | 0 |
| 1994 | 2 | 0 |
| 1995 | 2 | 0 |
| 1996 | 7 | 0 |
| 1997 | 4 | 0 |
| 1998 | 5 | 0 |
| 1999 | 4 | 0 |
| 2000 | 3 | 0 |
| 2001 | 9 | 5 |
| 2002 | 9 | 2 |
| 2003 | 4 | 8 |
| 2004 | 1 | 5 |
| 2005 | 4 | 3 |
| 2006 | 1 | 5 |
| 2007 | 4 | 4 |
| 2008 | 2 | 5 |
| 2009 | 2 | 3 |
| 2010 | 2 | 2 |
| 2011 | 3 | 3 |
| 2012 | 4 | 5 |
| 2013 | 2 | 5 |
| 2014 | 2 | 3 |
| 2015 | 2 | 5 |
| 2016 | 5 | 5 |
| 2017 | 1 | 3 |
| 2018 | 6 | 5 |
| 2019 | 1 | 1 |
| 2020 | 3 | 7 |
| 2021 | 5 | 6 |
| 2022 | 3 | 9 |
| 2023 | 3 | 1 |
| 2024 | 5 | 0 |
| 2025 | 3 | 2 |
| 2026 | 3 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Suction device for drilling mud2 Jun 2026US 12,644,349 B2Geolog S.r.l.
- Water purification system and method12 May 2026US 12,623,167 B2
- Separating device and use of a separating device13 Jan 2026US 12,523,135 B23M Innovative Properties Company
- Fluid filtration apparatuses, systems, and methods9 Sep 2025US 12,409,397 B2Donaldson Company, Inc.
- Reciprocating lamination spiral solid-liquid separator29 Jul 2025US 12,370,473 B2Dewlink Sludge Treatment Ltd
- Suction Device for Drilling Mud17 Apr 2025US 2025/0122769 A1Geolog S.r.l.
- Water purification system and method13 Feb 2025US 2025/0050250 A1
- Reciprocating lamination spiral solid-liquid separator30 Mar 2023US 2023/0102465 A1Dewlink Sludge Treatment Ltd
- Oil filter comprising a hydraulic resistance22 Dec 2022US 2022/0401857 A1C. C. Jensen A/S
- Tangential flow filtration module and tangential flow filtration assembly30 Jun 2022US 2022/0203272 A1Metal Industries Research & Development Centre
Most cited
By later US patents
- Filtering and dispensing system with independently activated pumps in series161US 5,167,837 AFAS-Technologies, Inc. · 1992
- Fluid dispensing system124US 5,516,429 AFAStar, Ltd. · 1996
- Labyrinth disk stack having disks with integral filter screens98US 4,267,045 AThe Babcock & Wilcox Company · 1981
- Fluid filter92US 6,440,303 B2Chapin Manufacturing, Inc. · 2002
- Inlet conduit fluid filter72US 4,107,043 ACreative Dispensing Systems, Inc. · 1978