A01K 27/004
Retractable leashes
Official title: {Retractable leashes}
A01K27/004 (Retractable leashes) appears on 316 US grants and 408 published applications in this corpus.
Search patents in A01K- Granted patents
- 316
- Published applications
- 408
- Assignees
- 116
- Inventors
- 569
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 1 | 0 |
| 1978 | 0 | 0 |
| 1979 | 1 | 0 |
| 1980 | 2 | 0 |
| 1981 | 1 | 0 |
| 1982 | 2 | 0 |
| 1983 | 2 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 3 | 0 |
| 1987 | 0 | 0 |
| 1988 | 2 | 0 |
| 1989 | 4 | 0 |
| 1990 | 2 | 0 |
| 1991 | 1 | 0 |
| 1992 | 2 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 2 | 0 |
| 1996 | 3 | 0 |
| 1997 | 1 | 0 |
| 1998 | 3 | 0 |
| 1999 | 5 | 0 |
| 2000 | 4 | 0 |
| 2001 | 9 | 1 |
| 2002 | 3 | 1 |
| 2003 | 4 | 8 |
| 2004 | 5 | 4 |
| 2005 | 8 | 8 |
| 2006 | 6 | 19 |
| 2007 | 5 | 9 |
| 2008 | 3 | 20 |
| 2009 | 5 | 13 |
| 2010 | 7 | 15 |
| 2011 | 9 | 28 |
| 2012 | 16 | 14 |
| 2013 | 13 | 19 |
| 2014 | 15 | 20 |
| 2015 | 17 | 15 |
| 2016 | 13 | 23 |
| 2017 | 16 | 25 |
| 2018 | 12 | 19 |
| 2019 | 12 | 18 |
| 2020 | 12 | 19 |
| 2021 | 12 | 18 |
| 2022 | 14 | 24 |
| 2023 | 16 | 20 |
| 2024 | 13 | 8 |
| 2025 | 16 | 24 |
| 2026 | 11 | 16 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Bicycle dog leash attachment and method of use6 Oct 2026US 12,751,420 B2
- Dog waste collector6 Oct 2026US 12,753,559 B2
- Pet leash15 Sep 2026US 12,733,628 B1Wigzi, LLC
- Electronically controlled dog leash with tension adjustment8 Sep 2026US 12,727,582 B2
- Leash with interchangeable handle1 Sep 2026US 12,721,319 B2
- Modular pet leash1 Oct 2026US 2026/0293853 A1
- Cover for a Retractable Dog Leash20 Aug 2026US 2026/0240118 A1
- Adjustable length leash with pulley-like adjustment system13 Aug 2026US 2026/0231909 A1
- System with integrated haptic feedback for canine communication16 Jul 2026US 2026/0198457 A1
- Speed-sensitive wire extraction control device and restraint device utilizing the same16 Jul 2026US 2026/0200695 A1
Most cited
By later US patents
- Lunge line controller97US 5,377,626 A1995
- Retracting and locking animal leash78US 4,501,230 A1985
- Combined retractable pet leash and flashlight73US 5,887,550 A1999
- Brake lock mechanism for animal leash assembly71US 6,148,773 AFlexi-Bogdahn Technik GmbH & Co. KG · 2000
- Retractable leash collar70US 4,328,767 A1982