B62B 2301/252
By using ball-shaped wheels
Official title: by using ball-shaped wheels
B62B2301/252 (By using ball-shaped wheels) appears on 35 US grants and 41 published applications in this corpus.
Search patents in B62B- Granted patents
- 35
- Published applications
- 41
- Assignees
- 18
- Inventors
- 65
- Latest grant
- 5 May 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 1 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 1 | 0 |
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 1 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 1 | 0 |
| 1997 | 0 | 0 |
| 1998 | 1 | 0 |
| 1999 | 2 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 1 |
| 2003 | 0 | 1 |
| 2004 | 0 | 0 |
| 2005 | 0 | 1 |
| 2006 | 0 | 3 |
| 2007 | 0 | 1 |
| 2008 | 3 | 0 |
| 2009 | 0 | 3 |
| 2010 | 0 | 0 |
| 2011 | 1 | 0 |
| 2012 | 1 | 1 |
| 2013 | 0 | 4 |
| 2014 | 4 | 2 |
| 2015 | 5 | 7 |
| 2016 | 5 | 2 |
| 2017 | 2 | 1 |
| 2018 | 0 | 1 |
| 2019 | 0 | 4 |
| 2020 | 0 | 2 |
| 2021 | 0 | 0 |
| 2022 | 0 | 0 |
| 2023 | 0 | 3 |
| 2024 | 1 | 0 |
| 2025 | 2 | 4 |
| 2026 | 1 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Storage transport apparatus5 May 2026US 12,617,441 B2
- Pram frame with roller set21 Oct 2025US 12,448,020 B2Area 52 Ltd
- Cart30 Sep 2025US 12,428,045 B2Honda Motor Co., Ltd.
- Method for installing metal roof and floor deck to a structural steel frame6 Feb 2024US 11,891,809 B1New Rule Products, Inc.
- Electronic shopping cart24 Oct 2017US 9,796,402 B1
- Conveyance system, main dolly, and maintenance method for semiconductor production apparatus20 Nov 2025US 2025/0353535 A1Kokusai Electric Corporation
- Stroller with Luggage Bay Protection4 Sep 2025US 2025/0276729 A1Carrot Carriage LLC
- Modular Ski Transport Device with Adhesive Base and Rolling Element24 Jul 2025US 2025/0235775 A1
- Appliance kitchen caddy with 360-degree wheels15 May 2025US 2025/0153755 A1
- Pram frame29 Jun 2023US 2023/0202547 A1Area 52 Ltd
Most cited
By later US patents
- Beach cart65US 5,857,695 A1999
- Rolling cube container with lid35US 7,350,789 B2Suncast Corporation · 2008
- Mobile cart34US 9,079,595 B2E-Make Co., Ltd. · 2015
- Travois with roller assembly21US 5,005,844 ADouglas & Douglas, Inc. · 1991
- Ground engaging member for movable structures18US 4,058,344 AKirk-Dyson Designs Ltd. · 1977