F04B 39/1066
Valve plates
Official title: {Valve plates}
F04B39/1066 (Valve plates) appears on 143 US grants and 194 published applications in this corpus.
Search patents in F04B- Granted patents
- 143
- Published applications
- 194
- Assignees
- 108
- Inventors
- 453
- Latest grant
- 4 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 2 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 1 | 0 |
| 1989 | 2 | 0 |
| 1990 | 2 | 0 |
| 1991 | 2 | 0 |
| 1992 | 1 | 0 |
| 1993 | 4 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 1 | 0 |
| 1998 | 3 | 0 |
| 1999 | 1 | 0 |
| 2000 | 4 | 0 |
| 2001 | 4 | 1 |
| 2002 | 2 | 2 |
| 2003 | 3 | 8 |
| 2004 | 4 | 7 |
| 2005 | 6 | 6 |
| 2006 | 6 | 8 |
| 2007 | 1 | 10 |
| 2008 | 0 | 6 |
| 2009 | 2 | 10 |
| 2010 | 2 | 7 |
| 2011 | 4 | 11 |
| 2012 | 6 | 8 |
| 2013 | 4 | 4 |
| 2014 | 6 | 5 |
| 2015 | 4 | 13 |
| 2016 | 3 | 5 |
| 2017 | 2 | 13 |
| 2018 | 6 | 7 |
| 2019 | 8 | 13 |
| 2020 | 9 | 4 |
| 2021 | 9 | 8 |
| 2022 | 6 | 12 |
| 2023 | 6 | 6 |
| 2024 | 9 | 3 |
| 2025 | 5 | 11 |
| 2026 | 3 | 6 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Sound reduction device for rocking piston compressors4 Aug 2026US 12,698,765 B2Gast Manufacturing, Inc.
- Air compressor for a vehicle air braking system28 Jul 2026US 12,692,853 B2KB Intellectual Property GmbH & Co. KG
- Valve for a piston compressor, and method for operating such a valve5 May 2026US 12,618,400 B2Burckhardt Compression AG
- Air compressor cylinder head and air compressor18 Nov 2025US 12,473,901 B2Commercial Vehicle Systems (Qingdao) Co., Ltd.
- Unloading device and air compressor11 Nov 2025US 12,467,450 B2Zf Commercial Vehicle Systems (Qingdao) Co., Ltd.
- Oil-free air compressor and vehicle2 Jul 2026US 2026/0185513 A1Zhejiang Ruili Air Copressor Equipment Co., Ltd.
- Compressor and enhanced vapor injection structure thereof2 Jul 2026US 2026/0185622 A1Shanghai Highly Electrical Appliances Co., Ltd.
- Compressor21 May 2026US 2026/0139675 A1Mitsubishi Heavy Industries Thermal Systems, Ltd.
- A multi-gear inflation and deflation device for a swimming pool23 Apr 2026US 2026/0110294 A1Intex Industries Xiamen Co. Ltd.
- Valve plate with recesses2 Apr 2026US 2026/0092727 A1Nidec Global Appliance Brasil Ltda.
Most cited
By later US patents
- Low head to stem ratio poppet valve425US 9,309,978 B2Dresser-Rand Company · 2016
- Valve plate with a recessed valve assembly41US 5,213,125 AThomas Industries, Inc. · 1993
- Liquid pumping cassettes and associated pressure distribution manifold and related methods31US 11,371,498 B2DEKA Products Limited Partnership · 2022
- Liquid pumping cassettes and associated pressure distribution manifold and related methods24US 11,598,329 B2DEKA Products Limited Partnership · 2023
- Device for reducing refrigerant gas pulsations in a compressor23US 4,930,995 AKabushiki Kaisha Toyoda Jidoshokki Seisakusho · 1990