H01H 2209/018
Flat, smooth or ripple-free
Official title: flat, smooth or ripple-free
H01H2209/018 (Flat, smooth or ripple-free) appears on 14 US grants and 4 published applications in this corpus.
Search patents in H01H- Granted patents
- 14
- Published applications
- 4
- Assignees
- 11
- Inventors
- 32
- Latest grant
- 6 Oct 2015
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 0 | 0 |
| 1979 | 1 | 0 |
| 1980 | 1 | 0 |
| 1981 | 1 | 0 |
| 1982 | 1 | 0 |
| 1983 | 1 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 2 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 1 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 1 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 1 | 1 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 1 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 0 |
| 2014 | 0 | 1 |
| 2015 | 1 | 0 |
| 2016 | 0 | 0 |
| 2017 | 0 | 0 |
| 2018 | 0 | 0 |
| 2019 | 0 | 0 |
| 2020 | 0 | 0 |
| 2021 | 0 | 0 |
| 2022 | 0 | 0 |
| 2023 | 0 | 0 |
| 2024 | 0 | 0 |
| 2025 | 0 | 1 |
By publication year. Applications have been published since 2001.
Recent patents
- Keyboard module and electronic device having the same6 Oct 2015US 9,153,396 B2Wistron Corporation
- Membrane switch with rigid fascia22 Nov 2005US 6,967,299 B2Ark-Les Corporation
- Tamper resistant membrane switch5 May 1998US 5,747,757 AMonopanel Technologies, Inc.
- Electronic devices with a liquid crystal display23 May 1995US 5,418,760 ACasio Computer Co., Ltd.
- Sheet-like miniaturized electronic device14 Jul 1987US 4,680,724 ACasio Computer Co., Ltd.
- Fuse and its preparation process20 Mar 2025US 2025/0095943 A1
- Keyboard module and electronic device having the same9 Oct 2014US 2014/0299457 A1Wistron Corporation
- Membrane type computer keyboard4 Mar 2010US 2010/0051432 A1Goda Technology Co., Ltd.
- Membrane switch with rigid fascia24 Mar 2005US 2005/0061649 A1Ark-Les Corporation
Most cited
By later US patents
- Composite top membrane for flat panel switch arrays145US 4,258,096 ASheldahl, Inc. · 1981
- Pressure sensitive matrix switch having apertured spacer with flexible double sided adhesive intermediate and channels optionally interposed between apertures144US 4,065,649 ALake Center Industries · 1977
- Electronic devices with a liquid crystal display140US 5,418,760 ACasio Computer Co., Ltd. · 1995
- Push-button switch100US 4,349,712 AITT Industries, Inc. · 1982
- Electronic calculator with no protruding key tops46US 4,158,230 ASharp Kabushiki Kaisha · 1979