B64U 20/98
Using liquid
Official title: using liquid, e.g. using lubrication oil
B64U20/98 (Using liquid) appears on 11 US grants and 22 published applications in this corpus.
Search patents in B64U- Granted patents
- 11
- Published applications
- 22
- Assignees
- 20
- Inventors
- 45
- Latest grant
- 23 Jun 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 2008 | 0 | 1 |
| 2009 | 0 | 0 |
| 2010 | 1 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 0 |
| 2014 | 0 | 0 |
| 2015 | 0 | 0 |
| 2016 | 0 | 0 |
| 2017 | 0 | 1 |
| 2018 | 0 | 1 |
| 2019 | 1 | 1 |
| 2020 | 0 | 0 |
| 2021 | 1 | 1 |
| 2022 | 1 | 3 |
| 2023 | 0 | 4 |
| 2024 | 1 | 4 |
| 2025 | 3 | 2 |
| 2026 | 3 | 4 |
By publication year. 2026 runs to 8 Oct.
Recent patents
- Heat exchanger and airplane comprising same23 Jun 2026US 12,662,268 B2Plana Co., Ltd.
- Stator, and propeller driving apparatus and aircraft using the same28 Apr 2026US 12,614,948 B2Amotech Co., Ltd.
- Mobile object and battery unit27 Jan 2026US 12,534,235 B2Subaru Corporation
- Systems and methods for cooling an electric aircraft28 Oct 2025US 12,454,376 B2Toyota Motor Engineering & Manufacturing North America, Inc.
- Aircraft cooling system including parallel cooling circuits with common pipe10 Jun 2025US 12,325,528 B2Honda Motor Co., Ltd.
- Heat exchanger and airplane comprising same1 Oct 2026US 2026/0296688 A1Plana Co., Ltd.
- Motor and aircraft13 Aug 2026US 2026/0238087 A1Nidec Corporation
- Integrated Assembly of a Gearbox and Electric Motor with Shared Cooling Features6 Aug 2026US 2026/0229970 A1Supernal, LLC
- Liquid-curtain type heat dissipation structure for lidar onboard unmanned aerial vehicle5 Mar 2026US 2026/0062156 A1Guilin University of Technology
- Heat exchanger and airplane comprising same23 Oct 2025US 2025/0326487 A1Plana Co., Ltd.
Most cited
By later US patents