B60B 33/0042
Double or twin wheels
Official title: {Double or twin wheels}
B60B33/0042 (Double or twin wheels) appears on 335 US grants and 240 published applications in this corpus.
Search patents in B60B- Granted patents
- 335
- Published applications
- 240
- Assignees
- 208
- Inventors
- 508
- Latest grant
- 30 Jun 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 3 | 0 |
| 1977 | 1 | 0 |
| 1978 | 5 | 0 |
| 1979 | 2 | 0 |
| 1980 | 5 | 0 |
| 1981 | 3 | 0 |
| 1982 | 7 | 0 |
| 1983 | 2 | 0 |
| 1984 | 3 | 0 |
| 1985 | 4 | 0 |
| 1986 | 3 | 0 |
| 1987 | 9 | 0 |
| 1988 | 10 | 0 |
| 1989 | 4 | 0 |
| 1990 | 4 | 0 |
| 1991 | 5 | 0 |
| 1992 | 10 | 0 |
| 1993 | 7 | 0 |
| 1994 | 10 | 0 |
| 1995 | 2 | 0 |
| 1996 | 4 | 0 |
| 1997 | 2 | 0 |
| 1998 | 2 | 0 |
| 1999 | 6 | 0 |
| 2000 | 8 | 0 |
| 2001 | 7 | 3 |
| 2002 | 8 | 8 |
| 2003 | 10 | 5 |
| 2004 | 3 | 9 |
| 2005 | 6 | 8 |
| 2006 | 7 | 8 |
| 2007 | 3 | 15 |
| 2008 | 3 | 14 |
| 2009 | 8 | 12 |
| 2010 | 11 | 14 |
| 2011 | 11 | 17 |
| 2012 | 11 | 8 |
| 2013 | 10 | 7 |
| 2014 | 14 | 13 |
| 2015 | 14 | 11 |
| 2016 | 7 | 6 |
| 2017 | 6 | 13 |
| 2018 | 14 | 11 |
| 2019 | 10 | 15 |
| 2020 | 10 | 9 |
| 2021 | 11 | 12 |
| 2022 | 5 | 2 |
| 2023 | 6 | 3 |
| 2024 | 8 | 7 |
| 2025 | 8 | 6 |
| 2026 | 3 | 4 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Castor brake for double swivel castors for cases30 Jun 2026US 12,668,079 B2RIMOWA GmbH
- Cart stabilization system, rolling cart elements and methods of using same26 May 2026US 12,636,928 B2Zimmer, Inc.
- Caster with horizontal braking21 Apr 2026US 12,605,965 B2Benyu Casters & Wheels Co., Ltd
- Self-positioning swivel caster mechanisms18 Nov 2025US 12,472,772 B1Amazon Technologies, Inc.
- Wheel assembly21 Oct 2025US 12,447,773 B1
- Caster with Single Direction Automatic Alignment30 Jul 2026US 2026/0217056 A1
- Caster for carrier30 Apr 2026US 2026/0116124 A1
- Multi-Bearing Caster Wheel12 Mar 2026US 2026/0070370 A1East Java Enterprise, L.L.C.
- Universal wheel26 Feb 2026US 2026/0054523 A1Taizhou Wanlun Plastic Industry Co., Ltd.
- Grill carts including modular base assemblies18 Dec 2025US 2025/0383096 A1Weber-Stephen Products LLC
Most cited
By later US patents
- Omnidirectional vehicle with offset wheel pairs128US 6,540,039 B1Massachusetts Institute of Technology · 2003
- Resiliently mounted, pivotable steering roll, especially for driverless vehicles76US 4,763,910 AJD-Technologie AG · 1988
- Pneumatic locking swivel caster76US 7,017,228 B22006
- Wheelchair frame and castor assembly66US 5,762,155 ARichard van Seenus Nederland B.V. · 1998
- Brake caster65US 6,532,624 B12003