F04B 27/1081
Casings, housings
Official title: {Casings, housings}
F04B27/1081 (Casings, housings) appears on 140 US grants and 156 published applications in this corpus.
Search patents in F04B- Granted patents
- 140
- Published applications
- 156
- Assignees
- 64
- Inventors
- 362
- Latest grant
- 27 Jan 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 3 | 0 |
| 1977 | 4 | 0 |
| 1978 | 3 | 0 |
| 1979 | 1 | 0 |
| 1980 | 1 | 0 |
| 1981 | 1 | 0 |
| 1982 | 1 | 0 |
| 1983 | 2 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 1 | 0 |
| 1987 | 0 | 0 |
| 1988 | 3 | 0 |
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 1 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 3 | 0 |
| 1996 | 2 | 0 |
| 1997 | 0 | 0 |
| 1998 | 6 | 0 |
| 1999 | 1 | 0 |
| 2000 | 7 | 0 |
| 2001 | 8 | 3 |
| 2002 | 11 | 17 |
| 2003 | 11 | 12 |
| 2004 | 4 | 12 |
| 2005 | 4 | 11 |
| 2006 | 7 | 10 |
| 2007 | 4 | 11 |
| 2008 | 2 | 9 |
| 2009 | 2 | 7 |
| 2010 | 6 | 9 |
| 2011 | 4 | 3 |
| 2012 | 2 | 1 |
| 2013 | 2 | 4 |
| 2014 | 1 | 9 |
| 2015 | 3 | 3 |
| 2016 | 3 | 10 |
| 2017 | 6 | 6 |
| 2018 | 4 | 3 |
| 2019 | 2 | 2 |
| 2020 | 2 | 1 |
| 2021 | 0 | 4 |
| 2022 | 2 | 3 |
| 2023 | 1 | 2 |
| 2024 | 4 | 2 |
| 2025 | 2 | 1 |
| 2026 | 1 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Reciprocating pump power end with monolithic core27 Jan 2026US 12,535,069 B2Gd Energy Products, LLC
- Variable displacement swash plate type compressor23 Sep 2025US 12,421,948 B2Hanon Systems
- Variable-displacement swash plate type compressor1 Jul 2025US 12,345,246 B2Valeo Japan Co., Ltd.
- Swash plate compressor26 Nov 2024US 12,152,576 B2Hanon Systems
- Refrigerant compressor with stator elastic support19 Nov 2024US 12,146,486 B2BITZER Kuehlmaschinenbau GmbH
- Reciprocating pump power end with monolithic core21 May 2026US 2026/0139668 A1Gd Energy Products, LLC
- Reciprocating pump power end with monolithic core25 Dec 2025US 2025/0389269 A1Gd Energy Products, LLC
- Refrigerant compressor12 Dec 2024US 2024/0410360 A1BITZER Kuehlmaschinenbau GmbH
- Variable-displacement swash plate type compressor11 Jan 2024US 2024/0011480 A1Valeo Japan Co., Ltd.
- Variable displacement swash plate type compressor7 Dec 2023US 2023/0392588 A1Hanon Systems
Most cited
By later US patents
- Variable displacement compressor59US 4,073,603 ABorg-Warner Corporation · 1978
- Compressor modulation delay valve for variable capacity compressor32US 4,231,713 AGeneral Motors Corporation · 1980
- Compressor housing with clamp31US 6,658,986 B2Visteon Global Technologies, Inc. · 2003
- Lubrication system for compressor unit29US 4,005,948 ASankyo Electric Company Limited · 1977
- Variable displacement compressor23US 10,519,944 B2Sanden Holdings Corporation · 2019