F04C 29/128
Of the elastic type
Official title: {of the elastic type, e.g. reed valves}
F04C29/128 (Of the elastic type) appears on 204 US grants and 175 published applications in this corpus.
Search patents in F04C- Granted patents
- 204
- Published applications
- 175
- Assignees
- 92
- Inventors
- 484
- Latest grant
- 15 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 2 | 0 |
| 1979 | 2 | 0 |
| 1980 | 2 | 0 |
| 1981 | 1 | 0 |
| 1982 | 1 | 0 |
| 1983 | 1 | 0 |
| 1984 | 2 | 0 |
| 1985 | 1 | 0 |
| 1986 | 1 | 0 |
| 1987 | 3 | 0 |
| 1988 | 4 | 0 |
| 1989 | 4 | 0 |
| 1990 | 4 | 0 |
| 1991 | 3 | 0 |
| 1992 | 1 | 0 |
| 1993 | 5 | 0 |
| 1994 | 4 | 0 |
| 1995 | 2 | 0 |
| 1996 | 0 | 0 |
| 1997 | 3 | 0 |
| 1998 | 4 | 0 |
| 1999 | 5 | 0 |
| 2000 | 5 | 0 |
| 2001 | 3 | 1 |
| 2002 | 0 | 4 |
| 2003 | 4 | 3 |
| 2004 | 1 | 1 |
| 2005 | 0 | 6 |
| 2006 | 2 | 3 |
| 2007 | 1 | 6 |
| 2008 | 4 | 3 |
| 2009 | 1 | 5 |
| 2010 | 4 | 4 |
| 2011 | 4 | 3 |
| 2012 | 4 | 2 |
| 2013 | 2 | 7 |
| 2014 | 0 | 6 |
| 2015 | 9 | 15 |
| 2016 | 3 | 11 |
| 2017 | 9 | 6 |
| 2018 | 11 | 15 |
| 2019 | 5 | 5 |
| 2020 | 7 | 15 |
| 2021 | 13 | 5 |
| 2022 | 14 | 6 |
| 2023 | 4 | 8 |
| 2024 | 24 | 13 |
| 2025 | 7 | 8 |
| 2026 | 7 | 14 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Antirotation reed valve systems and methods for compressors15 Sep 2026US 12,736,053 B2Copeland Corporation
- Electric compressor with integrated vapor injection circuit28 Jul 2026US 12,692,865 B1Mahle International GmbH
- Reed retainer mechanism and electric compressor with reed retainer mechanism30 Jun 2026US 12,669,122 B2Mahle International GmbH
- Compressor14 Apr 2026US 12,601,349 B2Valeo Japan Co., Ltd.
- Hermetic compressor with cylinder having elliptical inner circumferential surface, roller, and at least one vane7 Apr 2026US RE50,855 E1LG Electronics Inc.
- Scroll compressor13 Aug 2026US 2026/0235122 A1Hanon Systems
- Discharge Passages For Compressors and Compressors Including Same13 Aug 2026US 2026/0235126 A1
- Electric compressor with integrated vapor injection circuit30 Jul 2026US 2026/0218703 A1Mahle International GmbH
- Hermetic compressor and refrigeration cycle apparatus30 Jul 2026US 2026/0218707 A1Mitsubishi Electric Corporation
- Hermetic compressor and refrigeration cycle apparatus16 Jul 2026US 2026/0201886 A1Mitsubishi Electric Corporation
Most cited
By later US patents
- Scroll compressor having bypass valves113US 5,855,475 AMatsushita Electric Industrial Co., Ltd. · 1999
- Scroll-type refrigerant compressor80US 5,674,058 ANippon Soken, Inc. · 1997
- Scroll machine with discharge valve63US 6,139,291 ACopeland Corporation · 2000
- Scroll compressors57US 6,544,016 B2Kabushiki Kaisha Toyota Jidoshokki · 2003
- Scroll compressors52US 6,558,143 B2Kabushiki Kaisha Toyota Jidoshokki · 2003