B61B 10/04
Power and free systems: with vehicles rolling trackless on the ground
Official title: with vehicles rolling trackless on the ground
B61B10/04 (Power and free systems: with vehicles rolling trackless on the ground) appears on 98 US grants and 43 published applications in this corpus.
Search patents in B61B- Granted patents
- 98
- Published applications
- 43
- Assignees
- 45
- Inventors
- 143
- Latest grant
- 30 Dec 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 2 | 0 |
| 1978 | 1 | 0 |
| 1979 | 1 | 0 |
| 1980 | 1 | 0 |
| 1981 | 4 | 0 |
| 1982 | 3 | 0 |
| 1983 | 1 | 0 |
| 1984 | 3 | 0 |
| 1985 | 1 | 0 |
| 1986 | 3 | 0 |
| 1987 | 6 | 0 |
| 1988 | 1 | 0 |
| 1989 | 1 | 0 |
| 1990 | 4 | 0 |
| 1991 | 4 | 0 |
| 1992 | 1 | 0 |
| 1993 | 2 | 0 |
| 1994 | 5 | 0 |
| 1995 | 1 | 0 |
| 1996 | 6 | 0 |
| 1997 | 2 | 0 |
| 1998 | 1 | 0 |
| 1999 | 0 | 0 |
| 2000 | 1 | 0 |
| 2001 | 1 | 1 |
| 2002 | 3 | 1 |
| 2003 | 0 | 4 |
| 2004 | 1 | 2 |
| 2005 | 2 | 1 |
| 2006 | 1 | 2 |
| 2007 | 2 | 1 |
| 2008 | 3 | 1 |
| 2009 | 0 | 4 |
| 2010 | 0 | 3 |
| 2011 | 2 | 6 |
| 2012 | 7 | 4 |
| 2013 | 4 | 4 |
| 2014 | 3 | 3 |
| 2015 | 4 | 0 |
| 2016 | 3 | 3 |
| 2017 | 1 | 0 |
| 2018 | 1 | 0 |
| 2019 | 0 | 1 |
| 2020 | 0 | 0 |
| 2021 | 1 | 1 |
| 2022 | 1 | 0 |
| 2023 | 0 | 0 |
| 2024 | 0 | 0 |
| 2025 | 1 | 1 |
By publication year. Applications have been published since 2001.
Subgroups
Granted patents
Recent patents
- Synchronization apparatuses and methods of use30 Dec 2025US 12,509,307 B2Toyota Jidosha Kabushiki Kaisha
- Transfer cart22 Nov 2022US 11,505,216 B2Tsubakimoto Chain Co.
- Towing device of automatic guided vehicle and automatic guided vehicle having the same30 Mar 2021US 10,960,717 B2Aichikikai Technosystem Co., Ltd.
- Conveyance device utilizing coupled wagons26 Jun 2018US 10,005,476 B2Daifuku Co., Ltd.
- Guide track for track-based vehicle, and traffic system22 Aug 2017US 9,738,178 B2Mitsubishi Heavy Industries, Ltd.
- Synchronization apparatuses and methods of use21 Aug 2025US 2025/0263250 A1Toyota Jidosha Kabushiki Kaisha
- Transfer cart23 Sep 2021US 2021/0291879 A1Tsubakimoto Chain Co.
- Towing device of automatic guided vehicle and automatic guided vehicle having the same2 May 2019US 2019/0126697 A1Aichikikai Technosystem Co., Ltd.
- Guide track for track-based vehicle, and traffic system21 Jul 2016US 2016/0207422 A1Mitsubishi Heavy Industries, Ltd.
- Conveyance Device Utilizing Coupled Wagons21 Jul 2016US 2016/0207543 A1Daifuku Co., Ltd.
Most cited
By later US patents
- Adjustable shock absorbing tow bar29US 6,679,185 B2Automatic Systems, Inc. · 2004
- Shock absorbing tow bar27US 5,511,486 ALico, Inc. · 1996
- Production operation with power and free pallet conveyor25US 6,494,304 B1Jervis B. Webb Company · 2002
- Device for interrupting the movement of load carrying units along a conveyor path24US 4,644,869 A1987
- Power-and-free trolley conveyor of floor type23US 4,542,698 ANakanishi Metal Works Co., Ltd. · 1985