B01D 21/0036
Horizontal partition walls
Official title: {Horizontal partition walls}
B01D21/0036 (Horizontal partition walls) appears on 58 US grants and 43 published applications in this corpus.
Search patents in B01D- Granted patents
- 58
- Published applications
- 43
- Assignees
- 44
- Inventors
- 110
- Latest grant
- 21 Apr 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1980 | 1 | 0 |
| 1981 | 1 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 1 | 0 |
| 1991 | 2 | 0 |
| 1992 | 1 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 3 | 0 |
| 1997 | 0 | 0 |
| 1998 | 3 | 0 |
| 1999 | 1 | 0 |
| 2000 | 2 | 0 |
| 2001 | 0 | 0 |
| 2002 | 3 | 0 |
| 2003 | 0 | 2 |
| 2004 | 0 | 2 |
| 2005 | 2 | 1 |
| 2006 | 3 | 2 |
| 2007 | 1 | 1 |
| 2008 | 1 | 2 |
| 2009 | 1 | 2 |
| 2010 | 1 | 0 |
| 2011 | 1 | 1 |
| 2012 | 1 | 0 |
| 2013 | 0 | 2 |
| 2014 | 0 | 2 |
| 2015 | 4 | 3 |
| 2016 | 2 | 3 |
| 2017 | 2 | 3 |
| 2018 | 4 | 5 |
| 2019 | 1 | 2 |
| 2020 | 5 | 2 |
| 2021 | 1 | 2 |
| 2022 | 2 | 2 |
| 2023 | 1 | 1 |
| 2024 | 3 | 2 |
| 2025 | 1 | 1 |
| 2026 | 1 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
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- Coolant processing apparatus21 Mar 2024US 2024/0091895 A1Matsuura Machinery Corporation
- Waste water treatment apparatus9 Nov 2023US 2023/0356115 A1Environmental Products & Services Co., Inc.
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Most cited
By later US patents
- Catch basin71US 5,849,181 AStormceptor Corporation · 1998
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- Dual stage centrifugal liquid-solids separator39US 7,335,313 B2Griswold Controls, LLC · 2008
- Modular plate settler38US 5,049,278 ASamdor Engineering Limited · 1991
- Dual stage centrifugal liquid-solids separator38US 7,025,890 B2Griswold Controls, LLC · 2006