F04C 2210/14
Lubricant
F04C2210/14 (Lubricant) appears on 120 US grants and 108 published applications in this corpus.
Search patents in F04C- Granted patents
- 120
- Published applications
- 108
- Assignees
- 73
- Inventors
- 315
- Latest grant
- 28 Jul 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1994 | 1 | 0 |
| 1995 | 1 | 0 |
| 1996 | 2 | 0 |
| 1997 | 2 | 0 |
| 1998 | 2 | 0 |
| 1999 | 7 | 0 |
| 2000 | 6 | 0 |
| 2001 | 7 | 1 |
| 2002 | 3 | 6 |
| 2003 | 5 | 5 |
| 2004 | 3 | 1 |
| 2005 | 2 | 2 |
| 2006 | 1 | 5 |
| 2007 | 1 | 2 |
| 2008 | 2 | 1 |
| 2009 | 2 | 5 |
| 2010 | 4 | 4 |
| 2011 | 2 | 5 |
| 2012 | 3 | 4 |
| 2013 | 5 | 3 |
| 2014 | 5 | 6 |
| 2015 | 4 | 1 |
| 2016 | 1 | 2 |
| 2017 | 3 | 2 |
| 2018 | 1 | 3 |
| 2019 | 1 | 12 |
| 2020 | 7 | 13 |
| 2021 | 8 | 9 |
| 2022 | 11 | 7 |
| 2023 | 7 | 1 |
| 2024 | 4 | 3 |
| 2025 | 4 | 5 |
| 2026 | 3 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Lubricant management in an HVACR system28 Jul 2026US 12,693,052 B2Trane International Inc.
- Scavenge loss limiter for a rotary compressor12 May 2026US 12,624,696 B2Ingersoll-Rand Industrial U.S., Inc.
- Airend having a lubricant flow valve and controller28 Apr 2026US 12,612,914 B2Ingersoll-Rand Industrial U.S., Inc.
- Portable class-II lubrication device11 Nov 2025US 12,467,585 B2Hove A/S
- Direct drive refrigerant screw compressor with refrigerant lubricated rotors12 Aug 2025US 12,385,491 B2Carrier Corporation
- Direct drive refrigerant screw compressor with refrigerant lubricated rotors6 Nov 2025US 2025/0341213 A1Carrier Corporation
- Scavenge loss limiter for a rotary compressor21 Aug 2025US 2025/0264103 A1Ingersoll-Rand Industrial U.S., Inc.
- Airend having a lubricant flow valve and controller19 Jun 2025US 2025/0198407 A1Ingersoll-Rand Industrial U.S., Inc.
- Compressor and refrigeration cycle device5 Jun 2025US 2025/0180257 A1Hitachi-Johnson Controls Air Conditioning, Inc.
- Portable class-ii lubrication device24 Apr 2025US 2025/0129884 A1Hove A/S
Most cited
By later US patents
- Refrigerating apparatus58US 6,240,736 B1Hitachi, Ltd. · 2001
- Refrigeration device using hydrofluorocarbon refrigerant54US 5,355,695 AMitsubishi Denki Kabushiki Kaisha · 1994
- Refrigerant compressor32US 5,964,581 AHitachi, Ltd. · 1999
- Refrigerating apparatus and refrigerant compressor30US 5,711,165 AHitachi, Ltd. · 1998
- Refrigerating apparatus29US 5,685,163 AHitachi, Ltd. · 1997