B66C 13/26
By ac motors
Official title: by AC motors
B66C13/26 (By ac motors) appears on 57 US grants and 54 published applications in this corpus.
Search patents in B66C- Granted patents
- 57
- Published applications
- 54
- Assignees
- 40
- Inventors
- 117
- Latest grant
- 10 Mar 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1979 | 1 | 0 |
| 1980 | 1 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 1 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 1 | 0 |
| 1993 | 1 | 0 |
| 1994 | 1 | 0 |
| 1995 | 1 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 1 | 0 |
| 1999 | 1 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 1 |
| 2003 | 0 | 0 |
| 2004 | 1 | 1 |
| 2005 | 0 | 3 |
| 2006 | 3 | 1 |
| 2007 | 1 | 0 |
| 2008 | 1 | 1 |
| 2009 | 1 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 1 |
| 2012 | 0 | 4 |
| 2013 | 0 | 1 |
| 2014 | 2 | 0 |
| 2015 | 1 | 1 |
| 2016 | 0 | 5 |
| 2017 | 2 | 3 |
| 2018 | 5 | 3 |
| 2019 | 5 | 1 |
| 2020 | 6 | 6 |
| 2021 | 1 | 7 |
| 2022 | 3 | 4 |
| 2023 | 6 | 1 |
| 2024 | 5 | 6 |
| 2025 | 4 | 3 |
| 2026 | 1 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Energy storage and delivery system with an elevator lift system and method of operating the same10 Mar 2026US 12,571,376 B2Energy Vault, Inc.
- Method and apparatus for stopping device, and crane, electronic device and readable medium9 Dec 2025US 12,492,105 B2Zoomlion Heavy Industry Science and Technology Co., Ltd.
- Energy storage and delivery system and method1 Jul 2025US 12,345,239 B2Energy Vault, Inc.
- Work machine18 Feb 2025US 12,227,078 B2Liebherr-Werk Nenzing GmbH
- Fluid-operated lifting gear14 Jan 2025US 12,195,311 B2J. D. Neuhaus Holding GmbH & Co. KG
- Hybrid-power control method and system, and crane30 Jul 2026US 2026/0217499 A1Xuzhou Heavy Machinery Co., Ltd.
- Electrified construction and/or material handling machine, in particular crane7 Aug 2025US 2025/0250147 A1Liebherr-Werk Biberach GmbH
- Working machine, in particular crane, with motor brake31 Jul 2025US 2025/0243038 A1Liebherr-Werk Ehingen GmbH
- Energy storage system and method22 May 2025US 2025/0163896 A1Energy Vault, Inc.
- Energy storage and delivery system and method26 Dec 2024US 2024/0426281 A1Energy Vault, Inc.
Most cited
By later US patents
- Elevating system62US 5,361,565 A1994
- Load-lifting apparatus and method of storing energy for the same34US 7,554,278 B2Railpower Technologies Corp. · 2009
- Energy storage system and method27US 10,837,429 B2Energy Vault, Inc. · 2020
- Energy storage system and method25US 10,683,851 B2Energy Vault, Inc. · 2020
- Method for energy storage for load hoisting machinery25US 5,936,375 APaceco Corp. · 1999