E05B 2047/0021
Geared sectors or fan-shaped gears
Official title: {Geared sectors or fan-shaped gears}
E05B2047/0021 (Geared sectors or fan-shaped gears) appears on 69 US grants and 60 published applications in this corpus.
Search patents in E05B- Granted patents
- 69
- Published applications
- 60
- Assignees
- 40
- Inventors
- 108
- Latest grant
- 20 Jan 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1979 | 1 | 0 |
| 1980 | 1 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 1 | 0 |
| 1985 | 0 | 0 |
| 1986 | 1 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 2 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 1 | 0 |
| 1997 | 1 | 0 |
| 1998 | 2 | 0 |
| 1999 | 2 | 0 |
| 2000 | 2 | 0 |
| 2001 | 1 | 1 |
| 2002 | 1 | 1 |
| 2003 | 2 | 1 |
| 2004 | 1 | 1 |
| 2005 | 0 | 1 |
| 2006 | 1 | 1 |
| 2007 | 1 | 1 |
| 2008 | 0 | 2 |
| 2009 | 0 | 1 |
| 2010 | 0 | 2 |
| 2011 | 1 | 0 |
| 2012 | 1 | 1 |
| 2013 | 2 | 1 |
| 2014 | 2 | 3 |
| 2015 | 2 | 2 |
| 2016 | 1 | 2 |
| 2017 | 5 | 4 |
| 2018 | 0 | 8 |
| 2019 | 5 | 4 |
| 2020 | 5 | 5 |
| 2021 | 3 | 2 |
| 2022 | 6 | 3 |
| 2023 | 3 | 5 |
| 2024 | 3 | 3 |
| 2025 | 7 | 3 |
| 2026 | 1 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
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Most cited
By later US patents
- Electronically activated door lock assembly100US 6,145,353 AUnican Electronics · 2000
- Bolt lock bolt retractor mechanism96US 5,265,452 AMas-Hamilton Group · 1993
- Electronic door lock82US 4,833,465 AAug. Winkhaus GmbH & Co. KG · 1989
- Alternate manually and electrically actuated bolt79US 4,438,962 AEmhart Industries, Inc. · 1984
- High security lock mechanism51US 6,314,773 B1C&M Technology, Inc. · 2001