E05B 41/00
Locks with visible indication as to whether the lock is locked or
Official title: Locks with visible indication as to whether the lock is locked or unlocked {(indicator lights E05B17/10)}
E05B41/00 (Locks with visible indication as to whether the lock is locked or) appears on 509 US grants and 551 published applications in this corpus.
Search patents in E05B- Granted patents
- 509
- Published applications
- 551
- Assignees
- 294
- Inventors
- 1,017
- Latest grant
- 29 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 1 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 1 | 0 |
| 1981 | 4 | 0 |
| 1982 | 1 | 0 |
| 1983 | 2 | 0 |
| 1984 | 0 | 0 |
| 1985 | 4 | 0 |
| 1986 | 1 | 0 |
| 1987 | 2 | 0 |
| 1988 | 4 | 0 |
| 1989 | 2 | 0 |
| 1990 | 2 | 0 |
| 1991 | 0 | 0 |
| 1992 | 1 | 0 |
| 1993 | 1 | 0 |
| 1994 | 7 | 0 |
| 1995 | 5 | 0 |
| 1996 | 4 | 0 |
| 1997 | 3 | 0 |
| 1998 | 4 | 0 |
| 1999 | 2 | 0 |
| 2000 | 7 | 0 |
| 2001 | 9 | 1 |
| 2002 | 4 | 5 |
| 2003 | 8 | 9 |
| 2004 | 5 | 9 |
| 2005 | 7 | 6 |
| 2006 | 2 | 13 |
| 2007 | 6 | 9 |
| 2008 | 2 | 17 |
| 2009 | 4 | 12 |
| 2010 | 7 | 8 |
| 2011 | 6 | 10 |
| 2012 | 10 | 13 |
| 2013 | 9 | 16 |
| 2014 | 17 | 18 |
| 2015 | 10 | 28 |
| 2016 | 21 | 36 |
| 2017 | 26 | 37 |
| 2018 | 38 | 42 |
| 2019 | 24 | 28 |
| 2020 | 33 | 43 |
| 2021 | 21 | 48 |
| 2022 | 35 | 31 |
| 2023 | 31 | 32 |
| 2024 | 45 | 31 |
| 2025 | 42 | 31 |
| 2026 | 28 | 18 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Dogging indicator for door exit device29 Sep 2026US 12,747,612 B2ASSA ABLOY Access and Egress Hardware Group, Inc.
- Force indicator for a gate29 Sep 2026US 12,747,628 B2Dorel Juvenile Group, Inc.
- Door lock equipped with indicator15 Sep 2026US 12,735,917 B2Junghwa Tech Co., Ltd.
- Lockset indicator assemblies1 Sep 2026US 12,723,433 B2Schlage Lock Company LLC
- Visual indicator for a pressurized barrier25 Aug 2026US 12,716,289 B1Regalo International, LLC
- Remote actuator system20 Aug 2026US 2026/0243106 A1Southco, Inc.
- Interchangeable functional rose insert23 Jul 2026US 2026/0210156 A1Schlage Lock Company LLC
- Locking apparatuses and a method of providing access control2 Jul 2026US 2026/0185388 A1HavenLock Inc.
- Locking status indicator assembly18 Jun 2026US 2026/0168285 A1Sargent Manufacturing Company
- Electronically Operated Latch18 Jun 2026US 2026/0168287 A1Security People, Inc.
Most cited
By later US patents
- Pawl & solenoid locking mechanism147US 5,887,467 AU-Code, Inc. · 1999
- Remotely-operated self-contained electronic lock security system assembly139US 5,933,086 ASchlage Lock Company LLC · 1999
- Latch with sensor87US 6,279,971 B1Hartwell Corporation · 2001
- Alarm system armed and disarmed by a deadbolt on a door77US 6,225,903 B1Napco Security Systems, Inc. · 2001
- Latch76US 4,828,299 AHartwell Corporation · 1989