B60B 33/0039
Single wheels
Official title: {Single wheels}
B60B33/0039 (Single wheels) appears on 452 US grants and 414 published applications in this corpus.
Search patents in B60B- Granted patents
- 452
- Published applications
- 414
- Assignees
- 269
- Inventors
- 790
- Latest grant
- 30 Jun 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 1 | 0 |
| 1987 | 1 | 0 |
| 1988 | 1 | 0 |
| 1989 | 0 | 0 |
| 1990 | 1 | 0 |
| 1991 | 8 | 0 |
| 1992 | 6 | 0 |
| 1993 | 11 | 0 |
| 1994 | 10 | 0 |
| 1995 | 6 | 0 |
| 1996 | 13 | 0 |
| 1997 | 11 | 0 |
| 1998 | 18 | 0 |
| 1999 | 16 | 0 |
| 2000 | 13 | 0 |
| 2001 | 16 | 8 |
| 2002 | 16 | 19 |
| 2003 | 15 | 31 |
| 2004 | 23 | 38 |
| 2005 | 24 | 23 |
| 2006 | 10 | 24 |
| 2007 | 14 | 30 |
| 2008 | 14 | 21 |
| 2009 | 16 | 19 |
| 2010 | 12 | 20 |
| 2011 | 14 | 18 |
| 2012 | 9 | 18 |
| 2013 | 22 | 19 |
| 2014 | 18 | 11 |
| 2015 | 11 | 10 |
| 2016 | 11 | 7 |
| 2017 | 7 | 11 |
| 2018 | 6 | 6 |
| 2019 | 16 | 19 |
| 2020 | 7 | 13 |
| 2021 | 13 | 15 |
| 2022 | 10 | 7 |
| 2023 | 13 | 11 |
| 2024 | 5 | 5 |
| 2025 | 5 | 6 |
| 2026 | 8 | 5 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Single action brake and swivel lock for caster30 Jun 2026US 12,668,080 B2Colson Group Holdings, LLC
- Auxiliary drive device for a wheelchair26 May 2026US 12,636,207 B2Alber GmbH
- Caster with horizontal braking21 Apr 2026US 12,605,965 B2Benyu Casters & Wheels Co., Ltd
- Auxiliary drive device for a wheelchair7 Apr 2026US 12,594,201 B2Alber GmbH
- Auxiliary drive device for a wheelchair24 Mar 2026US 12,582,565 B2Alber GmbH
- Tent support tube caster device8 Oct 2026US 2026/0307431 A1Heshan Fengzhida Outdoor Products Co., Ltd
- Apparatus for transporting a payload23 Jul 2026US 2026/0208549 A1Jevons IP Pty Limited
- Active caster11 Jun 2026US 2026/0158822 A1Toyota Jidosha Kabushiki Kaisha
- Lifting and placing caster7 May 2026US 2026/0124858 A1
- Robotics corner module1 Jan 2026US 2026/0001588 A1Schaeffler Technologies AG & Co. KG
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
- Anti-tip wheel106US 6,357,793 B1Sunrise Medical HHG Inc. · 2002