B62B 5/02
Providing for travelling up or down a flight of stairs
Official title: providing for travelling up or down a flight of stairs (chairs or multi-track cycles specially adapted for invalids A61G5/00)
B62B5/02 (Providing for travelling up or down a flight of stairs) appears on 302 US grants and 289 published applications in this corpus.
Search patents in B62B- Granted patents
- 302
- Published applications
- 289
- Assignees
- 140
- Inventors
- 595
- Latest grant
- 18 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 8 | 0 |
| 1978 | 3 | 0 |
| 1979 | 3 | 0 |
| 1980 | 2 | 0 |
| 1981 | 2 | 0 |
| 1982 | 3 | 0 |
| 1983 | 4 | 0 |
| 1984 | 5 | 0 |
| 1985 | 7 | 0 |
| 1986 | 5 | 0 |
| 1987 | 7 | 0 |
| 1988 | 2 | 0 |
| 1989 | 2 | 0 |
| 1990 | 4 | 0 |
| 1991 | 4 | 0 |
| 1992 | 4 | 0 |
| 1993 | 5 | 0 |
| 1994 | 5 | 0 |
| 1995 | 4 | 0 |
| 1996 | 4 | 0 |
| 1997 | 1 | 0 |
| 1998 | 4 | 0 |
| 1999 | 3 | 0 |
| 2000 | 7 | 0 |
| 2001 | 4 | 4 |
| 2002 | 11 | 4 |
| 2003 | 4 | 7 |
| 2004 | 5 | 7 |
| 2005 | 2 | 7 |
| 2006 | 5 | 16 |
| 2007 | 8 | 12 |
| 2008 | 6 | 9 |
| 2009 | 8 | 12 |
| 2010 | 6 | 9 |
| 2011 | 7 | 10 |
| 2012 | 8 | 10 |
| 2013 | 11 | 13 |
| 2014 | 11 | 9 |
| 2015 | 4 | 15 |
| 2016 | 6 | 12 |
| 2017 | 6 | 11 |
| 2018 | 6 | 14 |
| 2019 | 15 | 14 |
| 2020 | 6 | 10 |
| 2021 | 7 | 18 |
| 2022 | 8 | 14 |
| 2023 | 13 | 12 |
| 2024 | 16 | 17 |
| 2025 | 12 | 16 |
| 2026 | 7 | 7 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- High load capacity collapsible carts23 Jul 2026US 2026/0208780 A1dbest products, Inc.
- Collapsible drivable electric cart9 Jul 2026US 2026/0192839 A1dbest products, Inc.
- High load capacity collapsible carts9 Jul 2026US 2026/0192840 A1dbest products, Inc.
- Motorized collapsible cart12 Mar 2026US 2026/0070595 A1dbest products, Inc.
- Auxiliary rollers for a fork of a forked materials-handling vehicle12 Mar 2026US 2026/0070767 A1Hyster-Yale Materials Handling, Inc.
Most cited
By later US patents
- Variable configuration track laying vehicle204US 4,483,407 AHitachi, Ltd. · 1984
- Cog-augmented wheel for obstacle negotiation138US 4,919,489 AGrumman Aerospace Corporation · 1990
- Peripatetic vehicles96US 4,128,137 ANational Research Development Corporation · 1978
- Stair climbing cart96US 4,264,082 A1981
- Method for moving a wheelchair over stepped obstacles94US 5,447,317 A1995