F04B 39/121
Casings
Official title: {Casings}
F04B39/121 (Casings) appears on 853 US grants and 1,153 published applications in this corpus.
Search patents in F04B- Granted patents
- 853
- Published applications
- 1,153
- Assignees
- 412
- Inventors
- 2,021
- Latest grant
- 22 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 0 | 0 |
| 1978 | 1 | 0 |
| 1979 | 1 | 0 |
| 1980 | 3 | 0 |
| 1981 | 1 | 0 |
| 1982 | 4 | 0 |
| 1983 | 2 | 0 |
| 1984 | 1 | 0 |
| 1985 | 3 | 0 |
| 1986 | 3 | 0 |
| 1987 | 2 | 0 |
| 1988 | 4 | 0 |
| 1989 | 5 | 0 |
| 1990 | 1 | 0 |
| 1991 | 1 | 0 |
| 1992 | 2 | 0 |
| 1993 | 3 | 0 |
| 1994 | 4 | 0 |
| 1995 | 1 | 0 |
| 1996 | 2 | 0 |
| 1997 | 0 | 0 |
| 1998 | 1 | 0 |
| 1999 | 2 | 0 |
| 2000 | 2 | 0 |
| 2001 | 6 | 5 |
| 2002 | 10 | 10 |
| 2003 | 8 | 11 |
| 2004 | 3 | 16 |
| 2005 | 7 | 19 |
| 2006 | 8 | 13 |
| 2007 | 4 | 7 |
| 2008 | 1 | 17 |
| 2009 | 2 | 15 |
| 2010 | 4 | 32 |
| 2011 | 9 | 33 |
| 2012 | 14 | 29 |
| 2013 | 12 | 56 |
| 2014 | 27 | 45 |
| 2015 | 29 | 69 |
| 2016 | 37 | 75 |
| 2017 | 50 | 51 |
| 2018 | 69 | 75 |
| 2019 | 57 | 89 |
| 2020 | 74 | 82 |
| 2021 | 75 | 78 |
| 2022 | 65 | 74 |
| 2023 | 50 | 70 |
| 2024 | 75 | 48 |
| 2025 | 73 | 67 |
| 2026 | 33 | 67 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Pressure relief system for a portable air pump and inflator system22 Sep 2026US 12,742,444 B2The Noco Company
- Greenhouse gas reduction with externally pressurized gas seal and gas lubrication for a reciprocating compressor22 Sep 2026US 12,742,445 B2
- Vertical type compressor and laundry treating apparatus having the same22 Sep 2026US 12,742,456 B2LG Electronics Inc.
- Refrigerant compressor15 Sep 2026US 12,736,041 B2Secop GmbH
- Mechanical design of electro-hydrodynamic air mover apparatus15 Sep 2026US 12,736,042 B2Ventiva, Inc.
- Junction box and compressor1 Oct 2026US 2026/0302744 A1Nanchang Highly Electrical Appliances Co., Ltd.
- Portable Air Pump and Inflator System with a Vibration Damping Base24 Sep 2026US 2026/0286946 A1The Noco Company
- Modular effluent stream treatment apparatus and assembly method thereof10 Sep 2026US 2026/0266281 A1Bht Services Pte. Ltd.
- Compressor and sealing member20 Aug 2026US 2026/0246333 A1Carrier Japan Corporation
- Electric compressor20 Aug 2026US 2026/0246343 A1Sanden Corporation
Most cited
By later US patents
- Arrangement for portable pumping unit185US 6,557,704 B1KCI Licensing, Inc. · 2003
- Pump housing coupling103US 8,182,212 B2Hayward Industries, Inc. · 2012
- Compression unit for a volumetric compressor without lubrification94US 10,830,225 B2Mgf S.R.L. · 2020
- Method and equipment for improving the efficiency of compressors and refrigerators94US 10,961,995 B22021
- Inverter-integrated motor for an automotive vehicle56US 7,207,187 B2Denso Corporation · 2007