F04B 39/0253
Using centrifugal force for transporting the oil
Official title: {using centrifugal force for transporting the oil}
F04B39/0253 (Using centrifugal force for transporting the oil) appears on 55 US grants and 72 published applications in this corpus.
Search patents in F04B- Granted patents
- 55
- Published applications
- 72
- Assignees
- 31
- Inventors
- 177
- Latest grant
- 28 Jul 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1980 | 1 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 1 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 1 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 1 | 0 |
| 1996 | 1 | 0 |
| 1997 | 0 | 0 |
| 1998 | 1 | 0 |
| 1999 | 2 | 0 |
| 2000 | 0 | 0 |
| 2001 | 2 | 1 |
| 2002 | 1 | 1 |
| 2003 | 1 | 2 |
| 2004 | 2 | 3 |
| 2005 | 1 | 3 |
| 2006 | 2 | 6 |
| 2007 | 2 | 2 |
| 2008 | 1 | 2 |
| 2009 | 1 | 3 |
| 2010 | 2 | 2 |
| 2011 | 2 | 1 |
| 2012 | 1 | 8 |
| 2013 | 0 | 2 |
| 2014 | 4 | 4 |
| 2015 | 3 | 2 |
| 2016 | 1 | 0 |
| 2017 | 1 | 1 |
| 2018 | 0 | 1 |
| 2019 | 4 | 6 |
| 2020 | 1 | 4 |
| 2021 | 1 | 6 |
| 2022 | 5 | 4 |
| 2023 | 1 | 2 |
| 2024 | 3 | 1 |
| 2025 | 2 | 3 |
| 2026 | 3 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Reciprocating compressor with dual oil pump28 Jul 2026US 12,692,852 B2Samsung Electronics Co., Ltd.
- Reciprocating compressor19 May 2026US 12,631,169 B2LG Electronics Inc.
- Compressor and home appliance including the same3 Feb 2026US 12,540,609 B2Samsung Electronics Co., Ltd.
- Hermetic compressor23 Sep 2025US 12,421,949 B2LG Electronics Inc.
- Crankshaft, compressor, and refrigeration device20 May 2025US 12,305,627 B2Anhui Meizhi Compressor Co., Ltd.
- Refrigerant compressor13 Aug 2026US 2026/0235336 A1Secop GmbH
- Refrigerant compressor23 Apr 2026US 2026/0110293 A1Secop GmbH
- System for transporting lubricating oil in a compressor6 Nov 2025US 2025/0341206 A1Nidec Global Appliance Brasil Ltda.
- Compressor and home appliance including the same20 Mar 2025US 2025/0092867 A1Samsung Electronics Co., Ltd.
- Reciprocating compressor with dual oil pump6 Mar 2025US 2025/0075692 A1Samsung Electronics Co., Ltd.
Most cited
By later US patents
- Combination sight glass and sump oil level sensor for a hermetic compressor102US 6,276,901 B1Tecumseh Products Company · 2001
- Snap-fit lubricant pick-up tube for a motor compressor21US 4,209,080 ATecumseh Products Company · 1980
- Oil pick-up device of compressor17US 5,377,781 ASamsung Electronics Co., Ltd. · 1995
- Compressor oil pick-up tube17US 6,484,846 B1White Consolidated Industries, Inc. · 2002
- Oil pickup structure of a compressor13US 5,088,579 ASamsung Electronics Co., Ltd. · 1992