E05B 15/04
Spring arrangements in locks
Official title: Spring arrangements in locks {(E05B3/065, E05B15/101, E05B15/143, E05C19/06 take precedence)}
E05B15/04 (Spring arrangements in locks) appears on 610 US grants and 641 published applications in this corpus.
Search patents in E05B- Granted patents
- 610
- Published applications
- 641
- Assignees
- 374
- Inventors
- 1,108
- Latest grant
- 22 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 2 | 0 |
| 1978 | 1 | 0 |
| 1979 | 2 | 0 |
| 1980 | 1 | 0 |
| 1981 | 1 | 0 |
| 1982 | 3 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 5 | 0 |
| 1986 | 2 | 0 |
| 1987 | 6 | 0 |
| 1988 | 1 | 0 |
| 1989 | 2 | 0 |
| 1990 | 5 | 0 |
| 1991 | 6 | 0 |
| 1992 | 7 | 0 |
| 1993 | 2 | 0 |
| 1994 | 3 | 0 |
| 1995 | 9 | 0 |
| 1996 | 9 | 0 |
| 1997 | 13 | 0 |
| 1998 | 4 | 0 |
| 1999 | 9 | 0 |
| 2000 | 14 | 0 |
| 2001 | 7 | 3 |
| 2002 | 15 | 10 |
| 2003 | 9 | 6 |
| 2004 | 2 | 7 |
| 2005 | 6 | 22 |
| 2006 | 2 | 9 |
| 2007 | 10 | 17 |
| 2008 | 7 | 11 |
| 2009 | 4 | 12 |
| 2010 | 10 | 21 |
| 2011 | 11 | 11 |
| 2012 | 14 | 19 |
| 2013 | 10 | 19 |
| 2014 | 19 | 19 |
| 2015 | 14 | 29 |
| 2016 | 19 | 36 |
| 2017 | 31 | 39 |
| 2018 | 18 | 36 |
| 2019 | 32 | 43 |
| 2020 | 47 | 52 |
| 2021 | 29 | 41 |
| 2022 | 56 | 43 |
| 2023 | 40 | 39 |
| 2024 | 27 | 37 |
| 2025 | 39 | 30 |
| 2026 | 25 | 30 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- E05B 2015/0403Wound springsIndexing code175
- E05B 2015/0448Units of springsIndexing code70
- E05B 2015/0493Overcenter springsIndexing code56
- E05B 2015/0496Springs actuated by cams or the likeIndexing code55
- E05B 2015/0458Leaf springsIndexing code52
- E05B 2015/0468Made of one piece with a lock partIndexing code49
- E05B 2015/0472Made of rubber, plastics or the likeIndexing code46
- E05B 2015/0437Attachments or mountingsIndexing code34
All 16 subgroupsShow fewer
- E05B 2015/0486A single spring working on more than one elementIndexing code34
- E05B 2015/0431Modifying spring characteristic or tensionIndexing code27
- E05B 2015/0482Heavy springs which cannot be operated by handIndexing code12
- E05B 2015/0455Torsion springs of bar typeIndexing code9
- E05B 2015/0465Cup- or dished-disc springsIndexing code8
- E05B 2015/0451Folded springsIndexing code5
- E05B 2015/0462Ring springsIndexing code4
- E05B 2015/0444Springs additionally fulfilling an electric functionIndexing code2
Recent patents
- Feeding device for intelligent cooking machine22 Sep 2026US 12,741,860 B2Shanghai Aican Robot (Group) Co., Ltd.
- Rotary latch with spring guide22 Sep 2026US 12,742,347 B2Southco, Inc.
- Door lock11 Aug 2026US 12,703,999 B2Illinois Tool Works Inc.
- Lock4 Aug 2026US 12,698,646 B2Kingsway Enterprises (UK) Limited
- Door latch with worm gear4 Aug 2026US 12,698,655 B2The Boeing Company
- Motor vehicle locking device10 Sep 2026US 2026/0266108 A1Kiekert AG
- Vehicle latch assembly20 Aug 2026US 2026/0243115 A1Ford Global Technologies, LLC
- Lock for a motor vehicle, in particular hood lock or panel lock20 Aug 2026US 2026/0243116 A1Kiekert AG
- Multi-functioning locking mechanism of a hold open rod20 Aug 2026US 2026/0243280 A1MarathonNorco Aerospace, Inc.
- Door latch device and cooking apparatus having same6 Aug 2026US 2026/0227074 A1Samsung Electronics Co., Ltd.
Most cited
By later US patents
- Clutch mechanism for door lock system82US 5,640,863 AHarrow Products, Inc. · 1997
- Locking device79US 5,628,216 ASchlage Lock Company LLC · 1997
- Slam latch and method of assembly75US 5,934,716 ASouthco, Inc. · 1999
- Keypad lockset70US 8,141,400 B2EMTEK Products, Inc. · 2012
- Mortise lockset with internal clutch69US 6,354,121 B1Harrow Products, Inc. · 2002