B66D 3/16
Operated by an endless chain passing over a pulley or a sprocket
Official title: operated by an endless chain passing over a pulley or a sprocket
B66D3/16 (Operated by an endless chain passing over a pulley or a sprocket) appears on 65 US grants and 45 published applications in this corpus.
Search patents in B66D- Granted patents
- 65
- Published applications
- 45
- Assignees
- 27
- Inventors
- 87
- Latest grant
- 6 Jan 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 1 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 1 | 0 |
| 1984 | 2 | 0 |
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 1 | 0 |
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 1 | 0 |
| 1992 | 1 | 0 |
| 1993 | 1 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 5 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 1 | 0 |
| 2000 | 2 | 0 |
| 2001 | 2 | 0 |
| 2002 | 2 | 4 |
| 2003 | 3 | 1 |
| 2004 | 1 | 2 |
| 2005 | 0 | 0 |
| 2006 | 0 | 2 |
| 2007 | 2 | 1 |
| 2008 | 3 | 3 |
| 2009 | 3 | 1 |
| 2010 | 1 | 2 |
| 2011 | 1 | 0 |
| 2012 | 2 | 2 |
| 2013 | 0 | 5 |
| 2014 | 0 | 1 |
| 2015 | 2 | 4 |
| 2016 | 2 | 1 |
| 2017 | 4 | 1 |
| 2018 | 4 | 2 |
| 2019 | 3 | 5 |
| 2020 | 1 | 2 |
| 2021 | 3 | 0 |
| 2022 | 0 | 2 |
| 2023 | 2 | 2 |
| 2024 | 2 | 1 |
| 2025 | 1 | 1 |
| 2026 | 1 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Lifting gear6 Jan 2026US 12,515,928 B2Columbus Mckinnon Industrial Products GmbH
- Arrangement for aligning a raised load30 Sep 2025US 12,428,269 B2Heinrich de Fries GmbH
- Electric chain block1 Oct 2024US 12,103,829 B2Kito Corporation
- Electric chain block17 Sep 2024US 12,091,295 B2Kito Corporation
- Device for bearing the weight of a load24 Oct 2023US 11,793,701 B2
- Lifting device9 Jan 2025US 2025/0011144 A1Flexcrane, Inc.
- Lifting gear28 Mar 2024US 2024/0101400 A1Columbus Mckinnon Industrial Products GmbH
- Electric chain block4 May 2023US 2023/0138172 A1Kito Corporation
- Electric chain block30 Mar 2023US 2023/0094932 A1Kito Corporation
- Arrangement for Aligning a Raised Load1 Dec 2022US 2022/0380182 A1Heinrich de Fries GmbH
Most cited
By later US patents
- Portable raising and lowering device and equipment therefor20US 7,284,745 B2British Columbia Institute of Technology · 2007
- Portable drive assembly for a manual chain hoist17US 6,179,270 B22001
- Lifting gear17US 6,554,255 B2Elephant Chain Block Company Limited · 2003
- Chain travel stop14US 4,398,387 AColumbus McKinnon Corporation · 1983
- Chain block11US 4,221,364 AKabushiki Kaisha Toa Kiaki Seisakusho · 1980