E02F 9/2091
Control of energy storage means for electrical energy
Official title: {Control of energy storage means for electrical energy, e.g. battery or capacitors (energy recovery arrangements in hydraulic or pneumatic drives E02F9/2217)}
E02F9/2091 (Control of energy storage means for electrical energy) appears on 259 US grants and 364 published applications in this corpus.
Search patents in E02F- Granted patents
- 259
- Published applications
- 364
- Assignees
- 71
- Inventors
- 495
- Latest grant
- 15 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 2003 | 2 | 0 |
| 2004 | 1 | 2 |
| 2005 | 3 | 3 |
| 2006 | 1 | 0 |
| 2007 | 1 | 0 |
| 2008 | 0 | 1 |
| 2009 | 0 | 3 |
| 2010 | 1 | 10 |
| 2011 | 3 | 11 |
| 2012 | 6 | 19 |
| 2013 | 11 | 34 |
| 2014 | 28 | 29 |
| 2015 | 23 | 28 |
| 2016 | 23 | 25 |
| 2017 | 33 | 20 |
| 2018 | 21 | 9 |
| 2019 | 16 | 7 |
| 2020 | 6 | 9 |
| 2021 | 10 | 15 |
| 2022 | 6 | 26 |
| 2023 | 8 | 20 |
| 2024 | 23 | 28 |
| 2025 | 16 | 34 |
| 2026 | 17 | 31 |
By publication year. 2026 runs to 8 Oct.
Recent patents
- Hybrid electro-hydraulic load sensing system and control method thereof15 Sep 2026US 12,736,067 B2Chongqing University
- Electrically driven construction machine8 Sep 2026US 12,728,743 B2Hitachi Construction Machinery Tierra Co., Ltd.
- System and method for controlling battery preconditioning in a work machine8 Sep 2026US 12,729,512 B2Caterpillar Inc.
- Electric work vehicle25 Aug 2026US 12,716,196 B2Kubota Corporation
- Driving apparatus, driving method, and driving program18 Aug 2026US 12,709,869 B2Nabtesco Corporation
- Method for Operating a High-Voltage System of a Mobile Work Machine8 Oct 2026US 2026/0307495 A1Robert Bosch GmbH
- System for managing work machine, method for managing work machine, and work machine24 Sep 2026US 2026/0291259 A1Komatsu Ltd.
- Control system for work machine, work machine, and control method for work machine17 Sep 2026US 2026/0275684 A1Komatsu Ltd.
- Working machine10 Sep 2026US 2026/0266024 A1Yanmar Holdings Co., Ltd.
- Construction machine10 Sep 2026US 2026/0266025 A1Hitachi Construction Machinery Tierra Co., Ltd.
Most cited
By later US patents
- Drive device of working machine84US 6,666,022 B1Kobelco Construction Machinery Co., Ltd. · 2003
- Shovel64US 6,789,335 B1Kobelco Construction Machinery Co., Ltd. · 2004
- Hybrid construction equipment power control apparatus42US 7,069,673 B2Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.) · 2006
- System and method for controlling power in machine having electric and/or hydraulic devices31US 8,909,434 B2Caterpillar Inc. · 2014
- Hybrid vehicle power control apparatus and hybrid construction equipment using the power control apparatus29US 6,864,663 B2Kobelco Construction Machinery Co., Ltd. · 2005