B66C 7/02
Runways, tracks or trackways for trolleys or cranes: for underhung trolleys or
Official title: for underhung trolleys or cranes
B66C7/02 (Runways, tracks or trackways for trolleys or cranes: for underhung trolleys or) appears on 78 US grants and 76 published applications in this corpus.
Search patents in B66C- Granted patents
- 78
- Published applications
- 76
- Assignees
- 49
- Inventors
- 171
- Latest grant
- 3 Feb 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 0 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 1 | 0 |
| 1985 | 2 | 0 |
| 1986 | 1 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 1 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 2 | 0 |
| 1998 | 1 | 0 |
| 1999 | 0 | 0 |
| 2000 | 2 | 0 |
| 2001 | 2 | 0 |
| 2002 | 1 | 1 |
| 2003 | 1 | 0 |
| 2004 | 0 | 2 |
| 2005 | 0 | 2 |
| 2006 | 3 | 1 |
| 2007 | 0 | 2 |
| 2008 | 0 | 5 |
| 2009 | 3 | 1 |
| 2010 | 2 | 1 |
| 2011 | 1 | 2 |
| 2012 | 0 | 2 |
| 2013 | 1 | 6 |
| 2014 | 1 | 1 |
| 2015 | 6 | 2 |
| 2016 | 0 | 5 |
| 2017 | 3 | 1 |
| 2018 | 6 | 6 |
| 2019 | 2 | 5 |
| 2020 | 4 | 7 |
| 2021 | 5 | 7 |
| 2022 | 8 | 10 |
| 2023 | 6 | 2 |
| 2024 | 4 | 3 |
| 2025 | 4 | 1 |
| 2026 | 2 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Rail-and-trolley systems3 Feb 2026US 12,539,890 B2Bomac Engineering Pty. Ltd.
- Overhead rail attachment13 Jan 2026US 12,523,243 B2Kee Safety Limited
- Pitch motor trolley7 Oct 2025US 12,435,699 B1The AES Corporation
- Management system using a bridge crane for loading an object onto a machine tool and unloading an object from the machine tool19 Aug 2025US 12,390,896 B2Buffalo Machinery Company Limited
- Modular crane component system8 Jul 2025US 12,351,437 B2
- Travel rail and traveling vehicle system16 Apr 2026US 2026/0107735 A1Murata Machinery, Ltd.
- Chargeable hoists, in-rail charging assemblies, subject transport units, and related methods18 Dec 2025US 2025/0382159 A1Liko Research & Development AB
- Overhead hoist transport system5 Sep 2024US 2024/0294196 A1Samsung Electronics Co., Ltd.
- Overhead rail attachment11 Jul 2024US 2024/0229836 A9Kee Safety Limited
- Overhead rail attachment25 Apr 2024US 2024/0133403 A1Kee Safety Limited
Most cited
By later US patents
- Hanger bracket for track rails94US 5,598,785 AKnight Industries, Inc. · 1997
- Magnetic wheel39US 8,604,900 B2Magswitch Technology Worldwide Pty Ltd. · 2013
- Lift systems with continuous in-rail charging34US 8,978,905 B2Liko Research & Development AB · 2015
- Traveling mechanism in a lifting arrangement which is moveable on rails29US 6,058,849 AMannesmann Aktiengesellschaft · 2000
- Crane trolley27US 4,423,685 AMannesmann Aktiengesellschaft · 1984