F04B 39/0033
With encapsulations
Official title: {with encapsulations}
F04B39/0033 (With encapsulations) appears on 128 US grants and 120 published applications in this corpus.
Search patents in F04B- Granted patents
- 128
- Published applications
- 120
- Assignees
- 79
- Inventors
- 304
- Latest grant
- 16 Jun 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 1 | 0 |
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 1 | 0 |
| 1981 | 2 | 0 |
| 1982 | 2 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 1 | 0 |
| 1989 | 1 | 0 |
| 1990 | 1 | 0 |
| 1991 | 2 | 0 |
| 1992 | 3 | 0 |
| 1993 | 2 | 0 |
| 1994 | 2 | 0 |
| 1995 | 1 | 0 |
| 1996 | 4 | 0 |
| 1997 | 1 | 0 |
| 1998 | 1 | 0 |
| 1999 | 2 | 0 |
| 2000 | 8 | 0 |
| 2001 | 1 | 0 |
| 2002 | 4 | 4 |
| 2003 | 4 | 2 |
| 2004 | 2 | 5 |
| 2005 | 1 | 2 |
| 2006 | 0 | 6 |
| 2007 | 1 | 3 |
| 2008 | 1 | 3 |
| 2009 | 1 | 4 |
| 2010 | 2 | 2 |
| 2011 | 3 | 6 |
| 2012 | 4 | 3 |
| 2013 | 2 | 9 |
| 2014 | 5 | 3 |
| 2015 | 7 | 9 |
| 2016 | 3 | 1 |
| 2017 | 4 | 3 |
| 2018 | 6 | 6 |
| 2019 | 2 | 9 |
| 2020 | 6 | 5 |
| 2021 | 4 | 13 |
| 2022 | 10 | 6 |
| 2023 | 6 | 6 |
| 2024 | 9 | 3 |
| 2025 | 1 | 2 |
| 2026 | 2 | 5 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Device for reducing noise of compressor in air conditioner16 Jun 2026US 12,655,999 B2Samsung Electronics Co., Ltd.
- Production technique of synthetic jet actuators17 Feb 2026US 12,553,431 B2Actasys Inc.
- Electric compressor1 Apr 2025US 12,264,675 B2Kabushiki Kaisha Toyota Jidoshokki
- Compressor for automobile air conditioning device8 Oct 2024US 12,110,910 B2Mitsubishi Heavy Industries Thermal Systems, Ltd.
- Electric compressor24 Sep 2024US 12,098,714 B2Kabushiki Kaisha Toyota Jidoshokki
- Roots-type compressor system27 Aug 2026US 2026/0251145 A1
- Compressor-adapted enclosure and compressor unit6 Aug 2026US 2026/0226899 A1Mitsubishi Heavy Industries, Ltd.
- Air compressor cylinder16 Jul 2026US 2026/0201879 A1Mastery Investment LLC
- Novel design and production technique of synthetic jet actuators28 May 2026US 2026/0146595 A1Actasys Inc.
- Compressor assembly2 Apr 2026US 2026/0092601 A1Hanon Systems
Most cited
By later US patents
- Air compressor apparatus including noise-reducing means82US 4,264,282 AK. C. Mosier Company · 1981
- Sound attenuating enclosure for compressors51US 5,274,200 ACarrier Corporation · 1993
- Integrated air compressor48US 7,198,473 B2Ingersoll-Rand Company · 2007
- Sound attenuating machinery cover47US 5,272,285 AScott Mfg., Inc. · 1993
- Compressor sound attenuation enclosure43US 7,398,855 B2Emerson Climate Technologies, Inc. · 2008