B01D 2273/24
Making use of acoustic waves
Official title: Making use of acoustic waves, e.g. for measurements
B01D2273/24 (Making use of acoustic waves) appears on 14 US grants and 19 published applications in this corpus.
Search patents in B01D- Granted patents
- 14
- Published applications
- 19
- Assignees
- 19
- Inventors
- 52
- Latest grant
- 6 Jan 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1980 | 1 | 0 |
| 1981 | 0 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 1 |
| 2005 | 1 | 1 |
| 2006 | 0 | 0 |
| 2007 | 0 | 2 |
| 2008 | 2 | 1 |
| 2009 | 0 | 1 |
| 2010 | 1 | 0 |
| 2011 | 0 | 2 |
| 2012 | 0 | 1 |
| 2013 | 0 | 1 |
| 2014 | 1 | 0 |
| 2015 | 1 | 0 |
| 2016 | 0 | 1 |
| 2017 | 0 | 1 |
| 2018 | 1 | 0 |
| 2019 | 0 | 2 |
| 2020 | 1 | 1 |
| 2021 | 0 | 1 |
| 2022 | 1 | 1 |
| 2023 | 1 | 0 |
| 2024 | 1 | 1 |
| 2025 | 0 | 1 |
| 2026 | 1 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Filter monitoring using differential acoustic attenuation6 Jan 2026US 12,517,093 B2Carrier Corporation
- Apparatus and methods for air filtration of HVAC systems11 Jun 2024US 12,005,388 B2Smart Material Printing B.V.
- Smart IoT energy saving sound wave air filter system and use for air purifiers and a method of air filtration thereof25 Jul 2023US 11,708,986 B1Intellytic Ventures Ltd
- Acoustic aided air filter and a method of air filtration thereof12 Jul 2022US 11,383,192 B2Aurabeat Holdings Limited
- Lint collection assembly for a dryer appliance8 Sep 2020US 10,765,974 B2Haier US Appliance Solutions, Inc.
- Room air cleaner with low-pressure filter18 Dec 2025US 2025/0383103 A1Kappa Filter Systems GmbH
- Apparatus and methods for air filtration of hvac systems18 Apr 2024US 2024/0123390 A1Smart Material Printing B.V.
- Filter monitoring using differential acoustic attenuation20 Oct 2022US 2022/0334085 A1Carrier Corporation
- Particle filter monitoring22 Apr 2021US 2021/0116423 A1
- Lint collection assembly for a dryer appliance30 Jul 2020US 2020/0238202 A1Haier US Appliance Solutions, Inc.
Most cited
By later US patents
- Diesel particulate filter monitoring using acoustic sensing27US 6,964,694 B2AVL North America Inc. · 2005
- Whistle to signal clogged air filter22US 4,321,070 ABede Industries, Inc. · 1982
- Device for cleaning fabric filters13US 4,201,556 A1980
- Lint collection assembly for a dryer appliance9US 10,765,974 B2Haier US Appliance Solutions, Inc. · 2020
- Method and apparatus for carrying out integrity tests of a non-wetted filter element9US 9,072,996 B2Sartorius Stedim Biotech GmbH · 2015