H01H 2227/02
Vent opening
H01H2227/02 (Vent opening) appears on 16 US grants and 11 published applications in this corpus.
Search patents in H01H- Granted patents
- 16
- Published applications
- 11
- Assignees
- 15
- Inventors
- 43
- Latest grant
- 10 Sep 2024
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1981 | 1 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 1 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 1 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 2 |
| 2012 | 1 | 1 |
| 2013 | 1 | 0 |
| 2014 | 0 | 0 |
| 2015 | 0 | 1 |
| 2016 | 1 | 0 |
| 2017 | 0 | 0 |
| 2018 | 1 | 3 |
| 2019 | 3 | 0 |
| 2020 | 0 | 0 |
| 2021 | 1 | 1 |
| 2022 | 0 | 0 |
| 2023 | 0 | 1 |
| 2024 | 2 | 1 |
By publication year. Applications have been published since 2001.
Recent patents
- Keyboard10 Sep 2024US 12,087,518 B2Darfon Electronics Corp.
- Membrane circuit board and keyboard device using same2 Jan 2024US 11,862,411 B2Primax Electronics Ltd.
- Switch28 Sep 2021US 11,133,136 B2Fujikura Ltd.
- Vented push switch17 Sep 2019US 10,418,203 B2Panasonic Intellectual Property Management Co., Ltd.
- Illuminated keyboard structures9 Jul 2019US 10,347,443 B1Apple Inc.
- Keyboard1 Feb 2024US 2024/0038462 A1Darfon Electronics Corp.
- Membrane circuit board and keyboard device using same7 Dec 2023US 2023/0395339 A1Primax Electronics Ltd.
- Switch20 May 2021US 2021/0151266 A1Fujikura Ltd.
- Push switch20 Dec 2018US 2018/0366282 A1Panasonic Intellectual Property Management Co., Ltd.
- Keyboard device13 Dec 2018US 2018/0358194 A1Primax Electronics Ltd.
Most cited
By later US patents
- Vented membrane switch with contaminant scavenger132US 4,365,130 ANorth American Philips Corporation · 1982
- Keyboard dome stiffener assembly105US 8,253,052 B2Research In Motion Limited · 2012
- Switches and keyboards45US 4,839,474 AKey Innovations Limited · 1989
- Data entry control panel32US 5,225,818 AData Entry Products, Incorporated · 1993
- Switches and keyboards26US 4,634,818 ANPM International · 1987