B01D 45/02
Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal
Official title: by utilising gravity
B01D45/02 (Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal) appears on 191 US grants and 186 published applications in this corpus.
Search patents in B01D- Granted patents
- 191
- Published applications
- 186
- Assignees
- 187
- Inventors
- 480
- Latest grant
- 29 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 1 | 0 |
| 1979 | 1 | 0 |
| 1980 | 2 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 1 | 0 |
| 1984 | 2 | 0 |
| 1985 | 2 | 0 |
| 1986 | 1 | 0 |
| 1987 | 4 | 0 |
| 1988 | 2 | 0 |
| 1989 | 1 | 0 |
| 1990 | 2 | 0 |
| 1991 | 2 | 0 |
| 1992 | 1 | 0 |
| 1993 | 1 | 0 |
| 1994 | 1 | 0 |
| 1995 | 0 | 0 |
| 1996 | 2 | 0 |
| 1997 | 1 | 0 |
| 1998 | 3 | 0 |
| 1999 | 2 | 0 |
| 2000 | 4 | 0 |
| 2001 | 8 | 0 |
| 2002 | 1 | 2 |
| 2003 | 1 | 3 |
| 2004 | 4 | 1 |
| 2005 | 0 | 5 |
| 2006 | 4 | 7 |
| 2007 | 1 | 1 |
| 2008 | 3 | 3 |
| 2009 | 5 | 4 |
| 2010 | 3 | 6 |
| 2011 | 4 | 5 |
| 2012 | 5 | 4 |
| 2013 | 4 | 11 |
| 2014 | 7 | 3 |
| 2015 | 3 | 9 |
| 2016 | 5 | 7 |
| 2017 | 7 | 10 |
| 2018 | 5 | 11 |
| 2019 | 11 | 8 |
| 2020 | 11 | 19 |
| 2021 | 9 | 8 |
| 2022 | 14 | 17 |
| 2023 | 13 | 12 |
| 2024 | 8 | 13 |
| 2025 | 10 | 12 |
| 2026 | 8 | 5 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Air/liquid separation system for an extraction cleaner29 Sep 2026US 12,745,887 B2BISSELL Inc.
- Arrangement handling purged alcohol-based fuel and a method thereof8 Sep 2026US 12,729,853 B2Alfa Laval Corporate AB
- Assemblies and methods for material extraction from retention collections11 Aug 2026US 12,703,585 B2Industrial Vacuum Transfer Services USA, LLC
- Gas-liquid separator and air conditioning system of vehicle7 Jul 2026US 12,674,606 B2Zhejiang Geely Holding Group Co., Ltd.
- Liquid filter apparatus with thermal shield14 Apr 2026US 12,599,860 B2Edwards Vacuum LLC
- Float seal assembly6 Aug 2026US 2026/0225015 A1Specialty Machine Works, Inc.
- Blast furnace gas pressure swing adsorption carbon dioxide capture system coupled with compressed energy storage9 Jul 2026US 2026/0192238 A1Hebei Chuangjie Environmental Protection Engineering Co., Ltd.
- Method for the dry filtration of a gas flow carrying foreign objects, and filter device for cleaning raw gas carrying foreign objects7 May 2026US 2026/0124568 A1Herding GmbH Filtertechnik
- Method for Purifying Dust-containing Gas with Positive Pressure26 Feb 2026US 2026/0054209 A1Suzhou University of Science and Technology
- Two-stage water separator system15 Jan 2026US 2026/0015265 A1Mann+Hummel GmbH
Most cited
By later US patents
- Multi dust-collecting apparatus194US 7,547,338 B2Samsung Gwangju Electronics Co., Ltd. · 2009
- Multi dust-collecting apparatus117US 7,547,337 B2Samsung Gwangju Electronics Co., Ltd. · 2009
- Process for the separation of particulate solids from vapors using a discharge having a helical twist89US 4,482,451 AUop LLC · 1984
- Hybrid double hydrocyclone-gravity gas/liquid separator57US 4,617,031 AChevron Research Company · 1986
- Multi-stage vessel and separator/coalescer filter element51US 6,168,647 APerry Equipment Corporation · 2001