E05B 19/0052
Rectangular flat keys
Official title: {Rectangular flat keys}
E05B19/0052 (Rectangular flat keys) appears on 135 US grants and 126 published applications in this corpus.
Search patents in E05B- Granted patents
- 135
- Published applications
- 126
- Assignees
- 65
- Inventors
- 186
- Latest grant
- 22 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 4 | 0 |
| 1979 | 0 | 0 |
| 1980 | 1 | 0 |
| 1981 | 0 | 0 |
| 1982 | 2 | 0 |
| 1983 | 1 | 0 |
| 1984 | 1 | 0 |
| 1985 | 0 | 0 |
| 1986 | 1 | 0 |
| 1987 | 0 | 0 |
| 1988 | 1 | 0 |
| 1989 | 1 | 0 |
| 1990 | 1 | 0 |
| 1991 | 0 | 0 |
| 1992 | 1 | 0 |
| 1993 | 0 | 0 |
| 1994 | 1 | 0 |
| 1995 | 1 | 0 |
| 1996 | 5 | 0 |
| 1997 | 1 | 0 |
| 1998 | 5 | 0 |
| 1999 | 1 | 0 |
| 2000 | 2 | 0 |
| 2001 | 1 | 0 |
| 2002 | 1 | 0 |
| 2003 | 0 | 1 |
| 2004 | 0 | 1 |
| 2005 | 1 | 0 |
| 2006 | 0 | 5 |
| 2007 | 0 | 2 |
| 2008 | 1 | 2 |
| 2009 | 1 | 4 |
| 2010 | 3 | 3 |
| 2011 | 0 | 9 |
| 2012 | 6 | 6 |
| 2013 | 4 | 8 |
| 2014 | 10 | 2 |
| 2015 | 4 | 8 |
| 2016 | 7 | 9 |
| 2017 | 5 | 3 |
| 2018 | 4 | 5 |
| 2019 | 8 | 12 |
| 2020 | 8 | 13 |
| 2021 | 3 | 7 |
| 2022 | 9 | 8 |
| 2023 | 10 | 4 |
| 2024 | 7 | 8 |
| 2025 | 8 | 5 |
| 2026 | 3 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Key and key blanks operable in vertically and horizontally oriented keyways22 Sep 2026US 12,742,342 B2Assa Abloy High Security Group Inc.
- Key with light device for an electromechanical locking device18 Aug 2026US 12,709,915 B2Dormakaba Schweiz AG
- Key element, lock cylinder, locking system, and method21 Apr 2026US 12,607,038 B2Dormakaba Schweiz AG
- Flat key for a locking cylinder25 Nov 2025US 12,480,334 B2Dormakaba Austria GmbH
- Rotatable magnetic key combination element1 Apr 2025US 12,264,498 B2Mul-T-Lock Technologies Ltd.
- A lock and a method for manufacturing a key12 Mar 2026US 2026/0071465 A1Henry Squire & Sons Holdings Ltd
- Electronic key reader for mechanical keys28 Aug 2025US 2025/0270848 A1Schlage Lock Company LLC
- Key element, lock cylinder, locking system, and method21 Aug 2025US 2025/0263950 A1Dormakaba Schweiz AG
- Key and core with cam blocking26 Jun 2025US 2025/0207431 A1dormakaba USA Inc.
- Cylinder Lock With Secondary Locking Element Coupled to a Primary Pin Assembly19 Jun 2025US 2025/0198196 A1Assa Abloy High Security Group Inc.
Most cited
By later US patents
- Cylinder-lock with flat key39US 4,377,082 ADOM-Sicherheitstechnik GmbH & Co. KG · 1983
- Arrangement for cylinder locks34US 4,612,787 AEVVA-Werk Spezialerzeugung Von Zylinder- und Sicherheitsschlossern m.b.H. & Co., Kommanditgesellschaft · 1986
- Cylinder lock and key34US 4,823,575 ABauer Kaba AG · 1989
- Cylinder lock and key31US 4,356,713 AGKN-Stenman AB · 1982
- Method of manufacturing a key for a cylindrical lock29US 4,453,432 AGKN-Stenman AB · 1984