B66C 13/23
Circuits for controlling the lowering of the load
B66C13/23 (Circuits for controlling the lowering of the load) appears on 90 US grants and 91 published applications in this corpus.
Search patents in B66C- Granted patents
- 90
- Published applications
- 91
- Assignees
- 61
- Inventors
- 184
- Latest grant
- 10 Mar 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1979 | 1 | 0 |
| 1980 | 2 | 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 | 1 | 0 |
| 1998 | 1 | 0 |
| 1999 | 2 | 0 |
| 2000 | 1 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 2 |
| 2003 | 3 | 1 |
| 2004 | 1 | 1 |
| 2005 | 1 | 3 |
| 2006 | 3 | 1 |
| 2007 | 1 | 1 |
| 2008 | 1 | 2 |
| 2009 | 4 | 2 |
| 2010 | 0 | 0 |
| 2011 | 0 | 3 |
| 2012 | 0 | 4 |
| 2013 | 0 | 1 |
| 2014 | 3 | 0 |
| 2015 | 1 | 2 |
| 2016 | 1 | 5 |
| 2017 | 2 | 6 |
| 2018 | 5 | 8 |
| 2019 | 11 | 1 |
| 2020 | 6 | 7 |
| 2021 | 4 | 13 |
| 2022 | 5 | 6 |
| 2023 | 8 | 2 |
| 2024 | 7 | 11 |
| 2025 | 8 | 6 |
| 2026 | 2 | 3 |
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.
- Port cargo handling device and control method therefor13 Jan 2026US 12,522,478 B2Mitsui E&S Co., Ltd.
- 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.
- Article transport vehicle4 Nov 2025US 12,459,788 B2Daifuku Co., Ltd.
- Method for operating conveying system7 Oct 2025US 12,438,026 B2Taiwan Semiconductor Manufacturing Company.Ltd
- Hybrid-power control method and system, and crane30 Jul 2026US 2026/0217499 A1Xuzhou Heavy Machinery Co., Ltd.
- Transport device, transport system using the same and operation method thereof16 Jul 2026US 2026/0206530 A1Taiwan Semiconductor Manufacturing Company.Ltd
- Extended-range hybrid power system and control method therefor, and crane29 Jan 2026US 2026/0027905 A1Xuzhou Heavy Machinery Co., Ltd.
- Winch Assembly of a Load Handling Device6 Nov 2025US 2025/0340372 A1Ocado Innovation Limited
- Zero-gravity hoist control21 Aug 2025US 2025/0263274 A1Milwaukee Electric Tool Corporation
Most cited
By later US patents
- Elevating system62US 5,361,565 A1994
- Multiple hoist synchronization apparatus and method35US 6,598,859 B1MagneTek, Inc. · 2003
- 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