B01D 21/0042
Baffles or guide plates
Official title: {Baffles or guide plates}
B01D21/0042 (Baffles or guide plates) appears on 548 US grants and 418 published applications in this corpus.
Search patents in B01D- Granted patents
- 548
- Published applications
- 418
- Assignees
- 316
- Inventors
- 934
- Latest grant
- 22 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 3 | 0 |
| 1977 | 4 | 0 |
| 1978 | 5 | 0 |
| 1979 | 5 | 0 |
| 1980 | 5 | 0 |
| 1981 | 8 | 0 |
| 1982 | 4 | 0 |
| 1983 | 3 | 0 |
| 1984 | 3 | 0 |
| 1985 | 2 | 0 |
| 1986 | 5 | 0 |
| 1987 | 7 | 0 |
| 1988 | 3 | 0 |
| 1989 | 5 | 0 |
| 1990 | 5 | 0 |
| 1991 | 3 | 0 |
| 1992 | 4 | 0 |
| 1993 | 2 | 0 |
| 1994 | 4 | 0 |
| 1995 | 8 | 0 |
| 1996 | 20 | 0 |
| 1997 | 10 | 0 |
| 1998 | 18 | 0 |
| 1999 | 12 | 0 |
| 2000 | 14 | 0 |
| 2001 | 11 | 5 |
| 2002 | 10 | 8 |
| 2003 | 10 | 19 |
| 2004 | 15 | 18 |
| 2005 | 14 | 15 |
| 2006 | 18 | 16 |
| 2007 | 11 | 14 |
| 2008 | 3 | 13 |
| 2009 | 13 | 9 |
| 2010 | 12 | 14 |
| 2011 | 15 | 16 |
| 2012 | 15 | 11 |
| 2013 | 7 | 18 |
| 2014 | 12 | 16 |
| 2015 | 13 | 25 |
| 2016 | 10 | 13 |
| 2017 | 18 | 12 |
| 2018 | 21 | 25 |
| 2019 | 17 | 28 |
| 2020 | 31 | 31 |
| 2021 | 33 | 24 |
| 2022 | 21 | 15 |
| 2023 | 24 | 27 |
| 2024 | 9 | 13 |
| 2025 | 17 | 9 |
| 2026 | 6 | 4 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Recovery tank22 Sep 2026US 12,740,683 B2SharkNinja Operating LLC
- Removal device15 Sep 2026US 12,734,466 B2Aalberts hfc B.V.
- Device and method for coalescence separation18 Aug 2026US 12,708,865 B2ENI S. p. A.
- Waste water treatment apparatus21 Apr 2026US 12,605,654 B2Environmental Products & Services Co., Inc.
- Hot rolling mill with separator for mill scale from wastewater17 Mar 2026US 12,576,347 B2ArcelorMittal
- Stormwater management system for urban storage and recovery13 Aug 2026US 2026/0234042 A1
- Method, apparatus, and system to optimize flocculation of solid particles in a settling vessel26 Mar 2026US 2026/0084080 A1
- Systems and methods for treating a wastewater stream12 Mar 2026US 2026/0070829 A1
- Box basin with an improved sediment trap26 Feb 2026US 2026/0054200 A1
- Hydrodynamic stormwater separator13 Nov 2025US 2025/0345725 A1Contech Engineered Solutions LLC
Most cited
By later US patents
- Apparatus and method for removing fine particles from a liquid medium by ultrasonic waves175US 4,055,491 A1977
- Method for separating components in well fluids77US 5,928,519 A1999
- Oil-water separator73US 4,722,800 AHighland Tank and Manufacturing Company · 1988
- Separation apparatus and method71US 5,840,198 AInternational Fluid Separation Pty Ltd · 1998
- Stormwater treatment apparatus68US 6,350,374 B1Jensen Enterprises, Inc. · 2002