F04C 2240/801
Wear plates
F04C2240/801 (Wear plates) appears on 62 US grants and 48 published applications in this corpus.
Search patents in F04C- Granted patents
- 62
- Published applications
- 48
- Assignees
- 49
- Inventors
- 176
- Latest grant
- 8 Sep 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 | 1 | 0 |
| 1985 | 2 | 0 |
| 1986 | 1 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 1 | 0 |
| 1991 | 0 | 0 |
| 1992 | 1 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 1 | 0 |
| 1996 | 0 | 0 |
| 1997 | 1 | 0 |
| 1998 | 3 | 0 |
| 1999 | 1 | 0 |
| 2000 | 1 | 0 |
| 2001 | 1 | 0 |
| 2002 | 0 | 1 |
| 2003 | 2 | 1 |
| 2004 | 1 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 1 |
| 2009 | 0 | 1 |
| 2010 | 0 | 2 |
| 2011 | 1 | 2 |
| 2012 | 3 | 0 |
| 2013 | 1 | 4 |
| 2014 | 0 | 2 |
| 2015 | 2 | 1 |
| 2016 | 3 | 0 |
| 2017 | 0 | 3 |
| 2018 | 2 | 3 |
| 2019 | 0 | 3 |
| 2020 | 3 | 4 |
| 2021 | 5 | 2 |
| 2022 | 5 | 9 |
| 2023 | 4 | 3 |
| 2024 | 7 | 5 |
| 2025 | 5 | 1 |
| 2026 | 1 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Compressor and air conditioner8 Sep 2026US 12,729,685 B2Gree Electric Appliances, Inc. of Zhuhai
- Refrigeration system with a scroll machine having a plate inserted in a base of the scroll machine30 Dec 2025US 12,510,073 B2BITZER Kuehlmaschinenbau GmbH
- Quieted front exhaust motor16 Dec 2025US 12,496,699 B2Ingersoll-Rand Industrial U.S., Inc.
- Non-lubricated compressor with abradable sealing element and related method for assembling it1 Jul 2025US 12,345,262 B2Atlas Copco Airpower, Naamloze Vennootschap
- Pump body assembly, compressor and air conditioner20 May 2025US 12,305,643 B2Gree Green Refrigeration Technology Center Co., Ltd. of Zhuhai
- Compressor and Air Conditioner16 Jan 2025US 2025/0020125 A1Gree Electric Appliances, Inc. of Zhuhai
- Non-lubricated compressor with abradable sealing element and related method for assembling it26 Dec 2024US 2024/0426300 A1Atlas Copco Airpower, Naamloze Vennootschap
- Quieted front exhaust motor24 Oct 2024US 2024/0351180 A1Ingersoll-Rand Industrial U.S., Inc.
- Rotary engine shim design for floating side plates12 Sep 2024US 2024/0301839 A1Pratt & Whitney Canada Corp.
- Spiral compressor16 May 2024US 2024/0159237 A1Hanon Systems
Most cited
By later US patents
- Scroll-type refrigerant fluid compressor having a lubrication path through the orbiting scroll30US 5,888,057 ASanden Corporation · 1999
- Scroll type fluid displacement apparatus with improved anti-wear device17US 4,645,436 ASanden Corporation · 1987
- Scroll type fluid displacement apparatus with improved end plate fluid passage means16US 4,498,852 ASanden Corporation · 1985
- Scroll type compressor with seal supporting anti-wear plate portions15US 4,890,987 ASanden Corporation · 1990
- Dry air rotary pump or compressor13US 4,050,855 ANippon Piston Ring Co., Ltd. · 1977