B62B 2301/20
Resilient wheel suspension using springs
B62B2301/20 (Resilient wheel suspension using springs) appears on 120 US grants and 144 published applications in this corpus.
Search patents in B62B- Granted patents
- 120
- Published applications
- 144
- Assignees
- 65
- Inventors
- 245
- Latest grant
- 21 Apr 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1978 | 2 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 1 | 0 |
| 1985 | 1 | 0 |
| 1986 | 2 | 0 |
| 1987 | 0 | 0 |
| 1988 | 1 | 0 |
| 1989 | 0 | 0 |
| 1990 | 1 | 0 |
| 1991 | 0 | 0 |
| 1992 | 1 | 0 |
| 1993 | 1 | 0 |
| 1994 | 2 | 0 |
| 1995 | 0 | 0 |
| 1996 | 1 | 0 |
| 1997 | 0 | 0 |
| 1998 | 1 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 3 | 1 |
| 2002 | 3 | 3 |
| 2003 | 3 | 5 |
| 2004 | 4 | 8 |
| 2005 | 3 | 6 |
| 2006 | 2 | 11 |
| 2007 | 4 | 12 |
| 2008 | 2 | 8 |
| 2009 | 5 | 3 |
| 2010 | 9 | 4 |
| 2011 | 1 | 3 |
| 2012 | 3 | 4 |
| 2013 | 6 | 10 |
| 2014 | 5 | 5 |
| 2015 | 8 | 6 |
| 2016 | 2 | 5 |
| 2017 | 3 | 6 |
| 2018 | 7 | 3 |
| 2019 | 3 | 5 |
| 2020 | 5 | 6 |
| 2021 | 3 | 3 |
| 2022 | 3 | 6 |
| 2023 | 4 | 7 |
| 2024 | 5 | 4 |
| 2025 | 7 | 5 |
| 2026 | 3 | 5 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Motorized attachment for pulled wagons21 Apr 2026US 12,606,227 B2
- Self-powered mobile cart24 Feb 2026US 12,559,152 B1
- Cart6 Jan 2026US 12,515,723 B2Makita Corporation
- Separable wheel pack assembly16 Dec 2025US 12,497,088 B2
- Self-positioning swivel caster mechanisms18 Nov 2025US 12,472,772 B1Amazon Technologies, Inc.
- Motorized attachment for a wheeled load carrying device3 Sep 2026US 2026/0257714 A1
- A wheel assembly for a wheeled apparatus27 Aug 2026US 2026/0249658 A1Howard Wright Limited
- Systems and Methods for Efficiently Identifying Failed Computing Nodes7 May 2026US 2026/0125099 A1Egnyte, Inc.
- Carts with guide wheels5 Feb 2026US 2026/0035025 A1Cannon Equipment LLC
- Stroller frame and stroller5 Feb 2026US 2026/0035028 A1Wonderland Switzerland AG
Most cited
By later US patents
- Integrated wheel suspension system72US 6,789,810 B22004
- Child buggy with wheel with suspension, wheel with suspension and swivel wheel with suspension53US 7,497,449 B2Royalty Bugaboo GmbH · 2009
- Lift truck with a drive unit pre-tensioned by spring loading in the vertical direction47US 5,113,960 A1992
- Caster-supporting device for a baby stroller40US 4,913,452 A1990
- Suspension for stroller38US 6,203,054 B1Form Design Corporation · 2001