B60P 1/438
With means for balancing the weight of the ramp between use and
Official title: {with means for balancing the weight of the ramp between use and non-use position}
B60P1/438 (With means for balancing the weight of the ramp between use and) appears on 38 US grants and 34 published applications in this corpus.
Search patents in B60P- Granted patents
- 38
- Published applications
- 34
- Assignees
- 17
- Inventors
- 57
- Latest grant
- 16 Sep 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 1 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 1 | 0 |
| 1998 | 1 | 0 |
| 1999 | 0 | 0 |
| 2000 | 1 | 0 |
| 2001 | 1 | 0 |
| 2002 | 0 | 2 |
| 2003 | 1 | 0 |
| 2004 | 0 | 1 |
| 2005 | 2 | 2 |
| 2006 | 1 | 1 |
| 2007 | 2 | 2 |
| 2008 | 1 | 3 |
| 2009 | 2 | 0 |
| 2010 | 0 | 1 |
| 2011 | 1 | 0 |
| 2012 | 2 | 0 |
| 2013 | 0 | 1 |
| 2014 | 1 | 2 |
| 2015 | 1 | 1 |
| 2016 | 0 | 1 |
| 2017 | 2 | 3 |
| 2018 | 5 | 2 |
| 2019 | 1 | 2 |
| 2020 | 1 | 0 |
| 2021 | 1 | 1 |
| 2022 | 2 | 1 |
| 2023 | 0 | 4 |
| 2024 | 1 | 0 |
| 2025 | 4 | 1 |
| 2026 | 0 | 3 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Manually foldable wheelchair ramp16 Sep 2025US 12,414,883 B2Mpower Mobility, Inc
- Ramp assembly for a passenger vehicle2 Sep 2025US 12,403,810 B2Braun GmbH
- Counterbalance hinge assembly8 Apr 2025US 12,270,235 B2Austin Hardware & Supply, Inc.
- Counterbalance hinge assembly8 Apr 2025US 12,270,238 B2Austin Hardware & Supply, Inc.
- Lifting mechanism for a foldable ramp for wheelchair access to a passenger car rear door and foldable ramp9 Apr 2024US 11,951,050 B2Api Cz S.R.O.
- Hinge assembly for a trailer gate on a utility trailer30 Jul 2026US 2026/0217179 A1American Manufacturing Operations, Inc.
- Ramp door assembly with lift assist system28 May 2026US 2026/0145608 A1
- Trailer with spring assisted ramp5 Mar 2026US 2026/0061923 A1
- Counterbalance hinge assembly10 Jul 2025US 2025/0223854 A1Austin Hardware & Supply, Inc.
- Manually foldable wheelchair ramp15 Jun 2023US 2023/0181393 A1Mpower Mobility, Inc
Most cited
By later US patents