F25D 23/025
Secondary closures
Official title: {Secondary closures}
F25D23/025 (Secondary closures) appears on 468 US grants and 539 published applications in this corpus.
Search patents in F25D- Granted patents
- 468
- Published applications
- 539
- Assignees
- 86
- Inventors
- 723
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1980 | 1 | 0 |
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 1 | 0 |
| 1987 | 1 | 0 |
| 1988 | 1 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 1 | 0 |
| 1993 | 2 | 0 |
| 1994 | 1 | 0 |
| 1995 | 1 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 6 | 0 |
| 1999 | 4 | 0 |
| 2000 | 6 | 0 |
| 2001 | 1 | 3 |
| 2002 | 4 | 1 |
| 2003 | 1 | 1 |
| 2004 | 3 | 4 |
| 2005 | 2 | 6 |
| 2006 | 2 | 4 |
| 2007 | 2 | 4 |
| 2008 | 3 | 7 |
| 2009 | 5 | 7 |
| 2010 | 3 | 21 |
| 2011 | 7 | 12 |
| 2012 | 6 | 9 |
| 2013 | 10 | 20 |
| 2014 | 17 | 22 |
| 2015 | 17 | 20 |
| 2016 | 30 | 36 |
| 2017 | 24 | 38 |
| 2018 | 29 | 47 |
| 2019 | 54 | 58 |
| 2020 | 51 | 35 |
| 2021 | 30 | 35 |
| 2022 | 31 | 28 |
| 2023 | 27 | 32 |
| 2024 | 26 | 34 |
| 2025 | 41 | 26 |
| 2026 | 15 | 29 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
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- Smart lock box4 Aug 2026US 12,698,933 B2
- Door opening device and refrigerator having the same23 Jun 2026US 12,663,200 B2Samsung Electronics Co., Ltd.
- Refrigerator23 Jun 2026US 12,663,202 B2LG Electronics Inc.
- Door-in-door refrigerator8 Oct 2026US 2026/0308959 A1Haier Smart Home Co., Ltd.
- Refrigerator1 Oct 2026US 2026/0298524 A1LG Electronics Inc.
- Can tossing cooler24 Sep 2026US 2026/0287238 A1BeerMe LLC
- Refrigerator24 Sep 2026US 2026/0287245 A1LG Electronics Inc.
- Refrigerator10 Sep 2026US 2026/0266532 A1LG Electronics Inc.
Most cited
By later US patents
- Refrigerator with a third door111US 5,966,963 A1999
- Low temperature storage cabinet100US 6,128,914 ASanyo Electric Co., Ltd. · 2000
- Refrigerator including through-the-door ice service78US 4,306,757 AGeneral Electric Company · 1981
- Refrigerator shelf doors76US 4,500,147 A1985
- Refrigerator with inner door76US 8,752,918 B2LG Electronics Inc. · 2014