E06B 9/60
Spring drums operated only by closure members
E06B9/60 (Spring drums operated only by closure members) appears on 329 US grants and 386 published applications in this corpus.
Search patents in E06B- Granted patents
- 329
- Published applications
- 386
- Assignees
- 169
- Inventors
- 504
- Latest grant
- 14 Jul 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 2 | 0 |
| 1978 | 1 | 0 |
| 1979 | 1 | 0 |
| 1980 | 2 | 0 |
| 1981 | 2 | 0 |
| 1982 | 1 | 0 |
| 1983 | 2 | 0 |
| 1984 | 5 | 0 |
| 1985 | 4 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 2 | 0 |
| 1989 | 3 | 0 |
| 1990 | 1 | 0 |
| 1991 | 3 | 0 |
| 1992 | 5 | 0 |
| 1993 | 2 | 0 |
| 1994 | 7 | 0 |
| 1995 | 1 | 0 |
| 1996 | 5 | 0 |
| 1997 | 1 | 0 |
| 1998 | 4 | 0 |
| 1999 | 5 | 0 |
| 2000 | 6 | 0 |
| 2001 | 9 | 1 |
| 2002 | 4 | 7 |
| 2003 | 8 | 7 |
| 2004 | 3 | 5 |
| 2005 | 3 | 9 |
| 2006 | 4 | 6 |
| 2007 | 3 | 6 |
| 2008 | 1 | 11 |
| 2009 | 3 | 7 |
| 2010 | 4 | 2 |
| 2011 | 2 | 9 |
| 2012 | 7 | 16 |
| 2013 | 7 | 18 |
| 2014 | 14 | 19 |
| 2015 | 7 | 21 |
| 2016 | 15 | 17 |
| 2017 | 21 | 24 |
| 2018 | 12 | 18 |
| 2019 | 17 | 36 |
| 2020 | 15 | 25 |
| 2021 | 25 | 23 |
| 2022 | 21 | 19 |
| 2023 | 17 | 20 |
| 2024 | 14 | 25 |
| 2025 | 23 | 19 |
| 2026 | 4 | 16 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Touch-controlled window covering system14 Jul 2026US 12,680,379 B2
- Electromechanical actuator for driving a closure or sun protection screen, closure or sun protection system comprising such an actuator and method for dimensioning a compensation spring for a range of blinds each incorporating such an actuator9 Jun 2026US 12,650,048 B2Somfy Activites SA
- Cordless roller shutter spring regulator26 May 2026US 12,637,904 B2Guangzhou Jue Decoration Window Decoration Technology Co., Ltd
- Retractable curved shower door28 Apr 2026US 12,611,067 B2Stoett Industries
- Scrolling mechanism for window shades2 Dec 2025US 12,486,715 B2Ching Feng Home Fashions Co., Ltd.
- Cordless steel tape stabilization system8 Oct 2026US 2026/0308976 A1Yuyao Hujia Window Decoration Co., Ltd.
- Window shade having balancing drive system24 Sep 2026US 2026/0286772 A1Nien Made Enterprise Co., Ltd.
- Self-adjusting pre-tensioning device for roller shade24 Sep 2026US 2026/0286774 A1Zhejiang Risingsun Sunshading Technology Co., Ltd.
- Fail-Safe Awning and Method of Making Same13 Aug 2026US 2026/0234938 A1Carefree Company
- Method for manufacturing an optimal torsion spring, method for assembling a spring-assisted roller blind mechanism and corresponding spring-assisted roller13 Aug 2026US 2026/0234992 A17912854 Canada Inc.
Most cited
By later US patents
- Cordless, balanced venetian blind or shade with consistent variable force spring motor239US 5,482,100 ANewell Operating Company · 1996
- Motor-operated window cover139US 5,467,266 ALutron Electronics Co., Inc. · 1995
- Cordless, balanced window covering89US 5,531,257 ANewell Operating Company · 1996
- Flat spring drive system and window cover86US 6,283,192 B12001
- Cordless blinds69US 7,143,802 B2Springs Window Fashions LP · 2006