B61C 11/04
Tractive effort applied to racks
Official title: tractive effort applied to racks
B61C11/04 (Tractive effort applied to racks) appears on 45 US grants and 38 published applications in this corpus.
Search patents in B61C- Granted patents
- 45
- Published applications
- 38
- Assignees
- 25
- Inventors
- 73
- Latest grant
- 1 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1978 | 1 | 0 |
| 1979 | 1 | 0 |
| 1980 | 1 | 0 |
| 1981 | 2 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 2 | 0 |
| 1990 | 1 | 0 |
| 1991 | 0 | 0 |
| 1992 | 1 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 2 | 0 |
| 1998 | 1 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 1 | 0 |
| 2002 | 0 | 0 |
| 2003 | 1 | 1 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 1 |
| 2008 | 0 | 1 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 1 | 1 |
| 2012 | 2 | 2 |
| 2013 | 0 | 1 |
| 2014 | 1 | 1 |
| 2015 | 1 | 1 |
| 2016 | 0 | 1 |
| 2017 | 1 | 2 |
| 2018 | 1 | 1 |
| 2019 | 1 | 2 |
| 2020 | 2 | 3 |
| 2021 | 3 | 7 |
| 2022 | 5 | 4 |
| 2023 | 2 | 4 |
| 2024 | 6 | 4 |
| 2025 | 1 | 0 |
| 2026 | 2 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Order preparation or buffer storage system1 Sep 2026US 12,722,891 B2Exotec
- Material handling apparatus for delivering or retrieving items28 Jul 2026US 12,691,470 B2Opex Corporation
- Track system with a support member18 Mar 2025US 12,253,156 B2Lear Corporation
- Track system with a support member31 Dec 2024US 12,181,033 B2Lear Corporation
- Article transport facility10 Sep 2024US 12,084,093 B2Daifuku Co., Ltd.
- Conveyor30 Apr 2026US 2026/0116668 A1
- Propulsion system for autonomous robots10 Oct 2024US 2024/0336433 A1BionicHIVE Ltd
- Order preparation or buffer storage system10 Oct 2024US 2024/0336436 A1Exotec
- Robot system with a movable robot15 Aug 2024US 2024/0270290 A1
- Track system with a support member6 Jun 2024US 2024/0183437 A1Lear Corporation
Most cited
By later US patents
- Method and apparatus for sorting items245US 7,861,844 B2Opex Corporation · 2011
- Method and apparatus for delivering items to destination areas115US 8,104,601 B2Opex Corporation · 2012
- Material handling apparatus for sorting or retrieving items94US 8,276,740 B2Opex Corporation · 2012
- Material handling apparatus for delivering or retrieving items86US 8,622,194 B2Opex Corporation · 2014
- Material handling apparatus for delivering or retrieving items83US 9,010,517 B2Opex Corporation · 2015