B60B 33/0036
Castors in general: characterised by type of wheels
Official title: {characterised by type of wheels}
B60B33/0036 (Castors in general: characterised by type of wheels) appears on 791 US grants and 668 published applications in this corpus.
Search patents in B60B- Granted patents
- 791
- Published applications
- 668
- Assignees
- 461
- Inventors
- 1,319
- 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 | 8 | 0 |
| 1983 | 2 | 0 |
| 1984 | 3 | 0 |
| 1985 | 4 | 0 |
| 1986 | 4 | 0 |
| 1987 | 10 | 0 |
| 1988 | 11 | 0 |
| 1989 | 4 | 0 |
| 1990 | 5 | 0 |
| 1991 | 12 | 0 |
| 1992 | 16 | 0 |
| 1993 | 16 | 0 |
| 1994 | 20 | 0 |
| 1995 | 8 | 0 |
| 1996 | 18 | 0 |
| 1997 | 13 | 0 |
| 1998 | 21 | 0 |
| 1999 | 21 | 0 |
| 2000 | 19 | 0 |
| 2001 | 23 | 10 |
| 2002 | 25 | 27 |
| 2003 | 25 | 36 |
| 2004 | 26 | 46 |
| 2005 | 29 | 28 |
| 2006 | 16 | 30 |
| 2007 | 16 | 38 |
| 2008 | 16 | 32 |
| 2009 | 22 | 32 |
| 2010 | 19 | 32 |
| 2011 | 24 | 38 |
| 2012 | 21 | 25 |
| 2013 | 30 | 27 |
| 2014 | 31 | 26 |
| 2015 | 26 | 25 |
| 2016 | 22 | 16 |
| 2017 | 16 | 24 |
| 2018 | 19 | 22 |
| 2019 | 28 | 37 |
| 2020 | 22 | 23 |
| 2021 | 25 | 30 |
| 2022 | 17 | 13 |
| 2023 | 19 | 16 |
| 2024 | 13 | 12 |
| 2025 | 16 | 13 |
| 2026 | 11 | 10 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Castor brake for double swivel castors for cases30 Jun 2026US 12,668,079 B2RIMOWA GmbH
- Single action brake and swivel lock for caster30 Jun 2026US 12,668,080 B2Colson Group Holdings, LLC
- Track roller assembly23 Jun 2026US 12,661,929 B2Faigle Kunststoffe GmbH
- Auxiliary drive device for a wheelchair26 May 2026US 12,636,207 B2Alber GmbH
- Cart stabilization system, rolling cart elements and methods of using same26 May 2026US 12,636,928 B2Zimmer, Inc.
- Tent support tube caster device8 Oct 2026US 2026/0307431 A1Heshan Fengzhida Outdoor Products Co., Ltd
- Caster with Single Direction Automatic Alignment30 Jul 2026US 2026/0217056 A1
- Apparatus for transporting a payload23 Jul 2026US 2026/0208549 A1Jevons IP Pty Limited
- Active caster11 Jun 2026US 2026/0158822 A1Toyota Jidosha Kabushiki Kaisha
- Folding tent with caster structures4 Jun 2026US 2026/0152967 A1Linhai Zhenyi Arts & Crafts Co., Ltd.
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
- Omnidirectional vehicle with offset wheel pairs128US 6,540,039 B1Massachusetts Institute of Technology · 2003
- Hospital bed castor control mechanism123US 5,377,372 AHill-Rom, Inc. · 1995