F25D 2201/30
Insulation: with respect to sound
Official title: with respect to sound
F25D2201/30 (Insulation: with respect to sound) appears on 31 US grants and 33 published applications in this corpus.
Search patents in F25D- Granted patents
- 31
- Published applications
- 33
- Assignees
- 25
- Inventors
- 89
- Latest grant
- 5 Dec 2023
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1991 | 3 | 0 |
| 1992 | 4 | 0 |
| 1993 | 1 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 2 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 3 | 0 |
| 2001 | 0 | 1 |
| 2002 | 1 | 0 |
| 2003 | 1 | 0 |
| 2004 | 0 | 1 |
| 2005 | 1 | 2 |
| 2006 | 1 | 0 |
| 2007 | 0 | 0 |
| 2008 | 1 | 0 |
| 2009 | 0 | 1 |
| 2010 | 0 | 1 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 0 |
| 2014 | 0 | 3 |
| 2015 | 0 | 0 |
| 2016 | 1 | 3 |
| 2017 | 1 | 1 |
| 2018 | 0 | 0 |
| 2019 | 1 | 3 |
| 2020 | 0 | 3 |
| 2021 | 3 | 5 |
| 2022 | 3 | 1 |
| 2023 | 4 | 0 |
| 2024 | 0 | 4 |
| 2025 | 0 | 4 |
By publication year. Applications have been published since 2001.
Recent patents
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- Refrigerator6 Jun 2023US 11,668,510 B2Qingdao Haier Co., Ltd.
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- Cavity muffler and refrigerator10 Jan 2023US 11,549,499 B2Qingdao Haier Co., Ltd.
- Refrigerator with noise reduction5 Jul 2022US 11,378,325 B2Thetford Corporation
- Refrigerator with machine room of which cover has attenuated vibration4 Sep 2025US 2025/0277617 A1Samsung Electronics Co., Ltd.
- Appliance and system for self-diagnostics28 Aug 2025US 2025/0271326 A1Haier US Appliance Solutions, Inc.
- Refrigerator and control method thereof27 Mar 2025US 2025/0102221 A1Samsung Electronics Co., Ltd.
- Muffling device and refrigerating and freezing apparatus9 Jan 2025US 2025/0014557 A1Haier Smart Home Co., Ltd.
- Air duct assembly and refrigerating appliance having the same27 Jun 2024US 2024/0210092 A1Haier Smart Home Co., Ltd.
Most cited
By later US patents
- Low noise refrigerator and noise control method thereof32US 5,117,642 AKabushiki Kaisha Toshiba · 1992
- Apparatus for reducing noise in an air conditioner30US 6,062,033 ASamsung Electronics Co., Ltd. · 2000
- Refrigerating apparatus having noise attenuation26US 5,125,241 AKabushiki Kaisha Toshiba · 1992
- Mounting arrangement for a refrigerator fan24US 7,317,267 B2Multibras S.A. Electrodomesticos · 2008
- Silencer attenuating a noise from a noise source to be ventilated and a method for active control of its noise attenuation system23US 5,253,486 A1993