B66D 1/72
Anchor-chain sprockets
Official title: Anchor-chain sprockets; Anchor capstans
B66D1/72 (Anchor-chain sprockets) appears on 45 US grants and 36 published applications in this corpus.
Search patents in B66D- Granted patents
- 45
- Published applications
- 36
- Assignees
- 30
- Inventors
- 71
- Latest grant
- 13 May 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 1 | 0 |
| 1989 | 1 | 0 |
| 1990 | 2 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 2 | 0 |
| 1994 | 2 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 1 | 0 |
| 1998 | 2 | 0 |
| 1999 | 1 | 0 |
| 2000 | 1 | 0 |
| 2001 | 0 | 0 |
| 2002 | 1 | 1 |
| 2003 | 1 | 2 |
| 2004 | 1 | 2 |
| 2005 | 1 | 1 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 1 |
| 2009 | 2 | 2 |
| 2010 | 0 | 0 |
| 2011 | 1 | 2 |
| 2012 | 0 | 1 |
| 2013 | 3 | 6 |
| 2014 | 1 | 2 |
| 2015 | 3 | 2 |
| 2016 | 3 | 2 |
| 2017 | 1 | 5 |
| 2018 | 1 | 2 |
| 2019 | 4 | 1 |
| 2020 | 2 | 0 |
| 2021 | 1 | 0 |
| 2022 | 0 | 2 |
| 2023 | 0 | 0 |
| 2024 | 1 | 0 |
| 2025 | 1 | 2 |
By publication year. Applications have been published since 2001.
Recent patents
- Mooring/tensioning apparatus13 May 2025US 12,296,927 B2Flintstone Technology Limited
- Mooring/tensioning apparatus22 Oct 2024US 12,122,484 B2Flintstone Technology Limited
- Rotary chain jack that maintains tension in a mooring line/chain18 May 2021US 11,008,071 B2Bardex Corporation
- Rotatable chain stopper15 Dec 2020US 10,864,966 B2Bardex Corporation
- Chain guide and a chain winch comprising such a chain guide11 Aug 2020US 10,737,918 B2MacGregor Norway AS
- Chain tensioners for mooring of offshore floating structures13 Nov 2025US 2025/0346326 A1I.P. Huse AS
- Boat anchor and winch assembly2 Oct 2025US 2025/0304215 A1Lone Star Marine Pty Ltd
- Improved mooring/tensioning apparatus8 Dec 2022US 2022/0388609 A1Flintstone Technology Limited
- Mooring/tensioning apparatus17 Nov 2022US 2022/0363346 A1Flintstone Technology Limited
- Rotatable chain stopper5 Sep 2019US 2019/0270496 A1Bardex Corporation
Most cited
By later US patents
- Assembly on a chain sheave/chain-rope system18US 4,497,471 AA/S Bergens Mekaniske Verksteder · 1985
- Mechanism for tensioning a moving chain18US 4,862,821 AJohn T. Hepburn, Limited · 1989
- Integrated winch and windlass16US 4,722,293 AJohn T. Hepburn, Limited · 1988
- System and method for monitoring and controlling anchor rode length16US 5,803,008 AGeorgens Industries, Inc. · 1998
- Windlass for offshore structures15US 4,958,805 A1990