F01C 21/02
Arrangements of bearings
Official title: Arrangements of bearings (bearing constructions F16C)
F01C21/02 (Arrangements of bearings) appears on 365 US grants and 315 published applications in this corpus.
Search patents in F01C- Granted patents
- 365
- Published applications
- 315
- Assignees
- 222
- Inventors
- 896
- Latest grant
- 22 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 4 | 0 |
| 1977 | 5 | 0 |
| 1978 | 1 | 0 |
| 1979 | 2 | 0 |
| 1980 | 4 | 0 |
| 1981 | 1 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 2 | 0 |
| 1985 | 4 | 0 |
| 1986 | 2 | 0 |
| 1987 | 1 | 0 |
| 1988 | 3 | 0 |
| 1989 | 4 | 0 |
| 1990 | 3 | 0 |
| 1991 | 3 | 0 |
| 1992 | 6 | 0 |
| 1993 | 5 | 0 |
| 1994 | 5 | 0 |
| 1995 | 5 | 0 |
| 1996 | 5 | 0 |
| 1997 | 6 | 0 |
| 1998 | 3 | 0 |
| 1999 | 8 | 0 |
| 2000 | 7 | 0 |
| 2001 | 11 | 1 |
| 2002 | 8 | 9 |
| 2003 | 6 | 10 |
| 2004 | 7 | 3 |
| 2005 | 3 | 6 |
| 2006 | 8 | 9 |
| 2007 | 4 | 9 |
| 2008 | 1 | 9 |
| 2009 | 5 | 12 |
| 2010 | 9 | 12 |
| 2011 | 6 | 19 |
| 2012 | 12 | 12 |
| 2013 | 9 | 16 |
| 2014 | 16 | 14 |
| 2015 | 12 | 16 |
| 2016 | 12 | 13 |
| 2017 | 14 | 13 |
| 2018 | 8 | 26 |
| 2019 | 19 | 25 |
| 2020 | 16 | 20 |
| 2021 | 26 | 17 |
| 2022 | 13 | 12 |
| 2023 | 17 | 14 |
| 2024 | 20 | 13 |
| 2025 | 11 | 2 |
| 2026 | 2 | 3 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Supercharger22 Sep 2026US 12,742,412 B2Eaton Intelligent Power Limited
- Eccentric slider for crankshaft, scroll compressor, and temperature control device3 Feb 2026US 12,540,642 B2Guangdong Midea Environmental Technologies Co., Ltd.
- Bearing and unloader assembly for compressors2 Dec 2025US 12,486,845 B2Copeland Corporation
- Scroll compressor4 Nov 2025US 12,460,638 B2LG Electronics Inc.
- Fluid machine28 Oct 2025US 12,456,898 B2Kabushiki Kaisha Toyota Jidoshokki
- Positive-displacement machine23 Jul 2026US 2026/0210356 A1
- Bearing and unloader assembly for compressors26 Feb 2026US 2026/0055767 A1Copeland Corporation
- Rotary compressor and refrigeration apparatus1 Jan 2026US 2026/0002533 A1Daikin Industries, Ltd.
- Scroll compressor5 Jun 2025US 2025/0180018 A1LG Electronics Inc.
- Screw compressor30 Jan 2025US 2025/0035115 A1Hitachi Industrial Equipment Systems Co., Ltd.
Most cited
By later US patents
- Scroll-type apparatus with hydrodynamic thrust bearing102US 4,065,279 AArthur D. Little, Inc. · 1977
- Fluid rotating apparatus61US 5,197,861 AMatsushita Electric Industrial Co., Ltd. · 1993
- Scroll compressor with improved bearing34US 5,137,437 AHitachi, Ltd. · 1992
- Vertical axis hermetic rotary helical screw compressor with improved rotary bearings and oil management31US 4,181,474 ADunham-Bush, Inc. · 1980
- Bearing arrangement for shaft of rotary compressor29US 4,227,755 AStal Refrigeration AB · 1980