A01K 91/20
Line length or depth measuring devices
A01K91/20 (Line length or depth measuring devices) appears on 65 US grants and 53 published applications in this corpus.
Search patents in A01K- Granted patents
- 65
- Published applications
- 53
- Assignees
- 26
- Inventors
- 103
- Latest grant
- 6 Jan 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 0 | 0 |
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 1 | 0 |
| 1984 | 1 | 0 |
| 1985 | 2 | 0 |
| 1986 | 2 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 2 | 0 |
| 1990 | 2 | 0 |
| 1991 | 2 | 0 |
| 1992 | 0 | 0 |
| 1993 | 3 | 0 |
| 1994 | 3 | 0 |
| 1995 | 3 | 0 |
| 1996 | 3 | 0 |
| 1997 | 1 | 0 |
| 1998 | 2 | 0 |
| 1999 | 1 | 0 |
| 2000 | 3 | 0 |
| 2001 | 1 | 1 |
| 2002 | 0 | 3 |
| 2003 | 2 | 0 |
| 2004 | 0 | 3 |
| 2005 | 1 | 6 |
| 2006 | 2 | 4 |
| 2007 | 1 | 5 |
| 2008 | 4 | 3 |
| 2009 | 2 | 4 |
| 2010 | 1 | 0 |
| 2011 | 1 | 2 |
| 2012 | 2 | 0 |
| 2013 | 1 | 0 |
| 2014 | 1 | 2 |
| 2015 | 0 | 1 |
| 2016 | 0 | 0 |
| 2017 | 0 | 0 |
| 2018 | 0 | 4 |
| 2019 | 1 | 2 |
| 2020 | 1 | 1 |
| 2021 | 1 | 4 |
| 2022 | 3 | 1 |
| 2023 | 1 | 1 |
| 2024 | 3 | 4 |
| 2025 | 0 | 2 |
| 2026 | 1 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Line length measuring device and fishing reel comprising the same6 Jan 2026US 12,514,241 B2Globeride, Inc.
- Castable sensor device24 Sep 2024US 12,096,755 B2Navico, Inc.
- Smart reel assembly13 Aug 2024US 12,058,990 B2R&D Outdoors, LLC
- Device and methods of use for determining lure depth while trolling30 Apr 2024US 11,968,968 B1
- Braking device, line length measuring device and fishing reel equipped with either device5 Dec 2023US 11,832,603 B2Globeride, Inc.
- Fishing Data Calculation Method, Mobile Terminal, and Fishing Reel System23 Oct 2025US 2025/0324959 A1Shenzhen Bosaidong Technology Co., Ltd.
- Fishing line information learning system14 Aug 2025US 2025/0255285 A1Shimano Inc.
- Fishing System and Method to Enhance the Fishing Experience25 Jul 2024US 2024/0245040 A1P Tech, LLC
- Line length measuring device and fishing reel comprising the same23 May 2024US 2024/0164358 A1Globeride, Inc.
- Measuring probe for a spinning or casting rod28 Mar 2024US 2024/0099287 A1Djup AB
Most cited
By later US patents
- Fishing lure with pressure sensing and hydrostatically controlled depth selection and guidance means26US 3,973,350 A1976
- Fishing reel with computer line length display26US 5,236,147 ADaiwa Seiko, Inc. · 1993
- Fishing system26US 7,669,360 B22010
- Fishline length measurement device22US 5,503,341 ADaiwa Seiko, Inc. · 1996
- Fishline length measuring device for fishing reel21US 5,395,065 ADaiwa Seiko, Inc. · 1995