F16N 2250/18
Level
F16N2250/18 (Level) appears on 66 US grants and 64 published applications in this corpus.
Search patents in F16N- Granted patents
- 66
- Published applications
- 64
- Assignees
- 52
- Inventors
- 181
- Latest grant
- 1 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 1 | 0 |
| 1989 | 0 | 0 |
| 1990 | 1 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 1 | 0 |
| 1994 | 1 | 0 |
| 1995 | 0 | 0 |
| 1996 | 2 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 1 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 2 |
| 2010 | 0 | 0 |
| 2011 | 1 | 0 |
| 2012 | 0 | 0 |
| 2013 | 1 | 0 |
| 2014 | 0 | 1 |
| 2015 | 0 | 3 |
| 2016 | 1 | 1 |
| 2017 | 2 | 6 |
| 2018 | 1 | 14 |
| 2019 | 9 | 6 |
| 2020 | 11 | 2 |
| 2021 | 6 | 8 |
| 2022 | 6 | 7 |
| 2023 | 7 | 3 |
| 2024 | 5 | 6 |
| 2025 | 4 | 2 |
| 2026 | 4 | 3 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Oil condition estimation device and oil condition estimation method1 Sep 2026US 12,723,527 B2Isuzu Motors Limited
- Engine oil consumption detection using oil level and machine tilt25 Aug 2026US 12,716,813 B2Caterpillar Inc.
- Remote gearbox lubricant level gauge system for rotorcraft23 Jun 2026US 12,663,071 B2Textron Innovations Inc.
- Lubricant recovery system for heat exchange system and heat exchange system31 Mar 2026US 12,590,741 B2Carrier Corporation
- Multiple-compressor system with oil balance control23 Sep 2025US 12,422,173 B2Copeland Corporation
- Grease gun including canister level sensing17 Sep 2026US 2026/0276143 A1
- Apparatus and method for monitoring a lubrication system of an aircraft power plant27 Aug 2026US 2026/0251491 A1Pratt & Whitney Canada Corp.
- Engine oil consumption detection using oil level and machine tilt12 Mar 2026US 2026/0071934 A1Caterpillar Inc.
- Oil condition estimation device and oil condition estimation method25 Dec 2025US 2025/0389214 A1Isuzu Motors Limited
- Method for monitoring the condition of lubricating oil of industrial equipment and system for monitoring the condition of lubricating oil of industrial equipment26 Jun 2025US 2025/0207724 A1Aa Linhares Comercio E ServiçOs Eireli
Most cited
By later US patents
- System for maintaining the quality and level of lubricant in an engine62US 5,964,318 AThe Lubrizol Corporation · 1999
- Oil control unit for high-performance vehicles47US 5,568,842 A1996
- Fluid exchanger with fluid reconciliation31US 5,273,085 ATokheim Corporation · 1993
- Lubrication system level control28US 8,448,750 B2Caterpillar Inc. · 2013
- Oil level detection circuit27US 4,503,419 AGeneral Motors Corporation · 1985