H01H 2227/008
Substrate
H01H2227/008 (Substrate) appears on 19 US grants and 10 published applications in this corpus.
Search patents in H01H- Granted patents
- 19
- Published applications
- 10
- Assignees
- 19
- Inventors
- 33
- Latest grant
- 20 Apr 2021
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 3 | 0 |
| 1977 | 0 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 1 | 0 |
| 1983 | 3 | 0 |
| 1984 | 1 | 0 |
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 1 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 2 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 1 | 0 |
| 2001 | 0 | 1 |
| 2002 | 0 | 0 |
| 2003 | 1 | 1 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 1 |
| 2008 | 0 | 0 |
| 2009 | 0 | 1 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 1 | 0 |
| 2013 | 0 | 2 |
| 2014 | 0 | 0 |
| 2015 | 0 | 0 |
| 2016 | 0 | 1 |
| 2017 | 0 | 0 |
| 2018 | 2 | 1 |
| 2019 | 1 | 0 |
| 2020 | 0 | 1 |
| 2021 | 1 | 1 |
By publication year. Applications have been published since 2001.
Recent patents
- Keyboard20 Apr 2021US 10,984,970 B2Chicony Electronics Co., Ltd.
- Key switch device8 Oct 2019US 10,438,759 B2Lenovo (Singapore) Pte. Ltd.
- Illuminated keyboard24 Jul 2018US 10,032,577 B2Primax Electronics Ltd.
- Membrane switch and method of manufacturing the same19 Jun 2018US 10,002,726 B2Kunshan Joing Technology Co., Ltd
- Touch panel22 May 2012US 8,182,898 B2Nitto Denko Corporation
- Switch unit and method for producing switch substrate3 Jun 2021US 2021/0166896 A1Citizen Electronics Co., Ltd.
- Keyboard9 Jan 2020US 2020/0013567 A1Chicony Electronics Co., Ltd.
- Illuminated keyboard14 Jun 2018US 2018/0166233 A1Primax Electronics Ltd.
- A membrane switch and method of manufacturing the same18 Aug 2016US 2016/0240333 A1Kunshan Joing Technology Co., Ltd
- Key switch device13 Jun 2013US 2013/0146434 A1Lenovo (Singapore) Pte. Ltd.
Most cited
By later US patents
- Vented membrane switch with contaminant scavenger132US 4,365,130 ANorth American Philips Corporation · 1982
- Tactile feel membrane switch assembly74US 4,463,234 ACentralab, Inc. · 1984
- Backlit tactile keyboard with improved tactile and electrical characteristics73US 5,138,119 ALucas Duralith Corporation · 1992
- Keyboard65US 4,527,030 APreh Elektrofeinmechanische Werke Jakob Preh Nachf. GmbH & Co. · 1985
- Backlit tactile keyboard with improved tactile and electrical characteristics56US 5,149,923 ALucas Duralith Corporation · 1992