B60B 33/02
Castors in general: with disengageable swivel action , i.e. comprising a swivel
Official title: with disengageable swivel action {, i.e. comprising a swivel locking mechanism}
B60B33/02 (Castors in general: with disengageable swivel action , i.e. comprising a swivel) appears on 479 US grants and 350 published applications in this corpus.
Search patents in B60B- Granted patents
- 479
- Published applications
- 350
- Assignees
- 272
- Inventors
- 741
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 4 | 0 |
| 1977 | 4 | 0 |
| 1978 | 5 | 0 |
| 1979 | 3 | 0 |
| 1980 | 7 | 0 |
| 1981 | 8 | 0 |
| 1982 | 7 | 0 |
| 1983 | 5 | 0 |
| 1984 | 5 | 0 |
| 1985 | 7 | 0 |
| 1986 | 6 | 0 |
| 1987 | 13 | 0 |
| 1988 | 7 | 0 |
| 1989 | 11 | 0 |
| 1990 | 5 | 0 |
| 1991 | 8 | 0 |
| 1992 | 8 | 0 |
| 1993 | 7 | 0 |
| 1994 | 6 | 0 |
| 1995 | 3 | 0 |
| 1996 | 6 | 0 |
| 1997 | 7 | 0 |
| 1998 | 12 | 0 |
| 1999 | 9 | 0 |
| 2000 | 9 | 0 |
| 2001 | 11 | 2 |
| 2002 | 8 | 6 |
| 2003 | 9 | 9 |
| 2004 | 6 | 15 |
| 2005 | 10 | 8 |
| 2006 | 7 | 13 |
| 2007 | 8 | 15 |
| 2008 | 7 | 15 |
| 2009 | 10 | 22 |
| 2010 | 9 | 15 |
| 2011 | 19 | 15 |
| 2012 | 8 | 12 |
| 2013 | 16 | 13 |
| 2014 | 21 | 12 |
| 2015 | 15 | 17 |
| 2016 | 10 | 14 |
| 2017 | 15 | 21 |
| 2018 | 15 | 11 |
| 2019 | 19 | 16 |
| 2020 | 11 | 7 |
| 2021 | 12 | 13 |
| 2022 | 6 | 13 |
| 2023 | 14 | 21 |
| 2024 | 14 | 19 |
| 2025 | 14 | 14 |
| 2026 | 13 | 12 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Caster having status indicator light6 Oct 2026US 12,752,572 B2Hill-Rom Services, Inc.
- Robotic surgical systems and robotic arm carts thereof25 Aug 2026US 12,714,530 B2Covidien LP
- Lawn care vehicle with front drive caster wheels30 Jun 2026US 12,667,047 B2Husqvarna AB
- Single action brake and swivel lock for caster30 Jun 2026US 12,668,080 B2Colson Group Holdings, LLC
- Wheel device and mobile robot device comprising same12 May 2026US 12,623,336 B2Samsung Electronics Co., Ltd.
- Caster with Single Direction Automatic Alignment30 Jul 2026US 2026/0217056 A1
- Locking casters for surgical systems2 Jul 2026US 2026/0183071 A1Auris Health, Inc.
- Locking casters for surgical systems with sensing2 Jul 2026US 2026/0183074 A1Auris Health, Inc.
- Active caster11 Jun 2026US 2026/0158822 A1Toyota Jidosha Kabushiki Kaisha
- Wheel connecting structure and baby carrier21 May 2026US 2026/0138396 A1Wonderland Switzerland AG
Most cited
By later US patents
- Autonomous surface cleaning robot for wet and dry cleaning295US 7,761,954 B2iRobot Corporation · 2010
- Undercarriage for X-ray diagnostic equipment212US 5,503,416 AOEC Medical Systems, Inc. · 1996
- Caster and braking system158US 6,321,878 B1Hill-Rom Services, Inc. · 2001
- Hospital bed castor control mechanism123US 5,377,372 AHill-Rom, Inc. · 1995
- Autonomous surface cleaning robot for wet and dry cleaning106US 8,387,193 B2iRobot Corporation · 2013