F05C 2251/14
Self lubricating materials
Official title: Self lubricating materials; Solid lubricants
F05C2251/14 (Self lubricating materials) appears on 80 US grants and 128 published applications in this corpus.
Search patents in F05C- Granted patents
- 80
- Published applications
- 128
- Assignees
- 72
- Inventors
- 304
- Latest grant
- 17 Mar 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1996 | 1 | 0 |
| 1997 | 1 | 0 |
| 1998 | 0 | 0 |
| 1999 | 1 | 0 |
| 2000 | 1 | 0 |
| 2001 | 1 | 0 |
| 2002 | 1 | 6 |
| 2003 | 3 | 8 |
| 2004 | 2 | 8 |
| 2005 | 2 | 7 |
| 2006 | 3 | 3 |
| 2007 | 5 | 7 |
| 2008 | 7 | 9 |
| 2009 | 0 | 2 |
| 2010 | 3 | 6 |
| 2011 | 2 | 4 |
| 2012 | 3 | 3 |
| 2013 | 5 | 5 |
| 2014 | 3 | 9 |
| 2015 | 1 | 16 |
| 2016 | 6 | 6 |
| 2017 | 6 | 6 |
| 2018 | 4 | 5 |
| 2019 | 6 | 3 |
| 2020 | 4 | 1 |
| 2021 | 1 | 5 |
| 2022 | 2 | 2 |
| 2023 | 2 | 1 |
| 2024 | 1 | 3 |
| 2025 | 1 | 2 |
| 2026 | 2 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Coating layer having a conforming material for a compressor and method of using the same17 Mar 2026US 12,577,950 B2Trane International Inc.
- Screw pump and its components24 Feb 2026US 12,560,167 B2Illinois Tool Works Inc.
- Low coefficient of expansion rotors for blowers21 Oct 2025US 12,448,968 B2Industrial Technologies and Services, LLC
- Low coefficient of expansion rotors for blowers10 Sep 2024US 12,085,078 B2Industrial Technologies and Services, LLC
- Low coefficient of expansion rotors for blowers5 Sep 2023US 11,746,782 B2Gardner-Denver Company
- Screw Pump and its Components14 May 2026US 2026/0132787 A1Illinois Tool Works Inc.
- Coating layer having a conforming material for a compressor and method of using the same9 Oct 2025US 2025/0314251 A1Trane International Inc.
- Electroless ni-p plating film for sliding member and manufacturing method therefor30 Jan 2025US 2025/0034717 A1Sanden Corporation
- Low coefficient of expansion rotors for blowers26 Dec 2024US 2024/0426299 A1Industrial Technologies and Services, LLC
- Screw pump and its components12 Dec 2024US 2024/0410363 A1Illinois Tool Works Inc.
Most cited
By later US patents
- Method of making an efficiency enhanced fluid pump or compressor47US 5,638,600 AFord Motor Company · 1997
- Solid lubricant coating for fluid pump or compressor45US 5,554,020 AFord Motor Company · 1996
- Anti-wear coatings for scroll compressor wear surfaces43US 9,605,677 B2Emerson Climate Technologies, Inc. · 2017
- Apparatus having refrigeration cycle25US 6,082,132 AMatsushita Electric Industrial Co., Ltd. · 2000
- Rotary blower with an abradable coating18US 6,688,867 B2Eaton Corporation · 2004