B62B 5/023
Using an upwards pushing device
Official title: {using an upwards pushing device}
B62B5/023 (Using an upwards pushing device) appears on 31 US grants and 23 published applications in this corpus.
Search patents in B62B- Granted patents
- 31
- Published applications
- 23
- Assignees
- 14
- Inventors
- 59
- Latest grant
- 21 Apr 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 1 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 1 | 0 |
| 1992 | 1 | 0 |
| 1993 | 1 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 3 | 0 |
| 1999 | 1 | 0 |
| 2000 | 1 | 0 |
| 2001 | 0 | 1 |
| 2002 | 3 | 1 |
| 2003 | 0 | 0 |
| 2004 | 1 | 1 |
| 2005 | 1 | 1 |
| 2006 | 1 | 1 |
| 2007 | 0 | 1 |
| 2008 | 0 | 1 |
| 2009 | 0 | 0 |
| 2010 | 1 | 0 |
| 2011 | 0 | 1 |
| 2012 | 2 | 2 |
| 2013 | 0 | 1 |
| 2014 | 1 | 0 |
| 2015 | 1 | 1 |
| 2016 | 1 | 0 |
| 2017 | 0 | 0 |
| 2018 | 0 | 3 |
| 2019 | 1 | 2 |
| 2020 | 1 | 1 |
| 2021 | 3 | 2 |
| 2022 | 1 | 0 |
| 2023 | 1 | 2 |
| 2024 | 0 | 1 |
| 2025 | 0 | 0 |
| 2026 | 1 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
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- Mechanical hand trucks with enhanced stair climbing and descending capability24 Oct 2023US 11,794,798 B2
- Dual-function electric stair-climbing vehicle capable of transporting goods and assisting people26 Apr 2022US 11,312,404 B2
- Stage-corresponding caster device26 Oct 2021US 11,155,120 B2Yuei Co., Ltd.
- Assistive robots including assemblies for accommodating obstacles and methods for using the same19 Oct 2021US 11,148,696 B2Toyota Research Institute, Inc.
- Control method for stair climber18 Jul 2024US 2024/0239395 A1
- Self-propelled stair climber20 Jul 2023US 2023/0227089 A1
- Mechanical hand trucks with enhanced stair climbing and descending capability13 Jul 2023US 2023/0219610 A1
- Stage-corresponding caster device15 Jul 2021US 2021/0213778 A1Yuei Co., Ltd.
- Dual-function electric stair-climbing vehicle capable of transporting goods and assisting people28 Jan 2021US 2021/0024114 A1
Most cited
By later US patents
- Motor-driven stair climbing device33US 6,341,784 B12002
- Apparatus for handling heavy loads such as a trolley or a rolling chair for the handicapped20US 5,036,929 A1991
- Moving unit18US 6,752,400 B2Shimadzu Mectem, Inc. · 2004
- Stair climbing device17US 4,109,740 AStep-Rite Limited · 1978
- Stair-climbing hand truck16US 4,570,953 AUltra Lift Corporation · 1986