E05Y 2201/726
Ring gears
Official title: Ring gears; Internal gears
E05Y2201/726 (Ring gears) appears on 61 US grants and 48 published applications in this corpus.
Search patents in E05Y- Granted patents
- 61
- Published applications
- 48
- Assignees
- 48
- Inventors
- 121
- Latest grant
- 25 Nov 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 1 | 0 |
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 2 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 1 | 0 |
| 1991 | 1 | 0 |
| 1992 | 0 | 0 |
| 1993 | 1 | 0 |
| 1994 | 0 | 0 |
| 1995 | 1 | 0 |
| 1996 | 3 | 0 |
| 1997 | 2 | 0 |
| 1998 | 1 | 0 |
| 1999 | 0 | 0 |
| 2000 | 4 | 0 |
| 2001 | 6 | 3 |
| 2002 | 3 | 2 |
| 2003 | 1 | 2 |
| 2004 | 5 | 3 |
| 2005 | 0 | 3 |
| 2006 | 0 | 7 |
| 2007 | 5 | 1 |
| 2008 | 1 | 4 |
| 2009 | 3 | 3 |
| 2010 | 2 | 1 |
| 2011 | 0 | 0 |
| 2012 | 1 | 1 |
| 2013 | 3 | 0 |
| 2014 | 0 | 0 |
| 2015 | 0 | 0 |
| 2016 | 0 | 1 |
| 2017 | 1 | 0 |
| 2018 | 0 | 4 |
| 2019 | 2 | 1 |
| 2020 | 1 | 1 |
| 2021 | 1 | 0 |
| 2022 | 1 | 0 |
| 2023 | 1 | 5 |
| 2024 | 1 | 2 |
| 2025 | 3 | 1 |
| 2026 | 0 | 3 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
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Most cited
By later US patents
- Automatic door operator56US 4,045,914 AThe Stanley Works · 1977
- Movable barrier operator50US 6,278,249 B1The Chamberlain Group, Inc. · 2001
- Movable barrier operator43US 6,172,475 B2The Chamberlain Group, Inc. · 2001
- System for driving and controlling an open-area shield41US 4,983,896 AAisin Seiki Kabushiki Kaisha · 1991
- Door operating device for a slide door unit39US 4,462,185 AToyota Shatai Kabushiki Kaisha · 1984