H01H 2209/016
Protection layer
Official title: Protection layer, e.g. for legend, anti-scratch
H01H2209/016 (Protection layer) appears on 68 US grants and 66 published applications in this corpus.
Search patents in H01H- Granted patents
- 68
- Published applications
- 66
- Assignees
- 79
- Inventors
- 191
- Latest grant
- 16 Dec 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 2 | 0 |
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 2 | 0 |
| 1986 | 1 | 0 |
| 1987 | 2 | 0 |
| 1988 | 3 | 0 |
| 1989 | 0 | 0 |
| 1990 | 1 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 2 | 0 |
| 1996 | 0 | 0 |
| 1997 | 2 | 0 |
| 1998 | 0 | 0 |
| 1999 | 6 | 0 |
| 2000 | 3 | 0 |
| 2001 | 2 | 2 |
| 2002 | 1 | 5 |
| 2003 | 5 | 4 |
| 2004 | 4 | 4 |
| 2005 | 3 | 2 |
| 2006 | 4 | 3 |
| 2007 | 2 | 4 |
| 2008 | 4 | 4 |
| 2009 | 3 | 4 |
| 2010 | 0 | 7 |
| 2011 | 0 | 4 |
| 2012 | 2 | 5 |
| 2013 | 1 | 1 |
| 2014 | 2 | 1 |
| 2015 | 0 | 2 |
| 2016 | 1 | 1 |
| 2017 | 1 | 1 |
| 2018 | 1 | 1 |
| 2019 | 1 | 1 |
| 2020 | 2 | 4 |
| 2021 | 1 | 1 |
| 2022 | 0 | 0 |
| 2023 | 1 | 2 |
| 2024 | 0 | 0 |
| 2025 | 1 | 3 |
By publication year. Applications have been published since 2001.
Recent patents
- Graphene enhanced and engineered materials for membrane touch switch and other flexible electronic structures16 Dec 2025US 12,497,532 B2Alpha Assembly Solutions Inc.
- Graphene enhanced and engineered materials for membrane touch switch and other flexible electronic structures11 Apr 2023US 11,624,000 B2Alpha Assembly Solutions Inc.
- Protection device9 Mar 2021US 10,943,755 B2Polytronics Technology Corp.
- Membrane circuit board and keyboard device with same25 Aug 2020US 10,755,873 B2Primax Electronics Ltd.
- Electromechanical relay device28 Jul 2020US 10,727,016 B2The University of Bristol
- Translucent keycap and method of manufacturing the same25 Sep 2025US 2025/0299893 A1Darfon Electronics Corp.
- Switch device8 May 2025US 2025/0149272 A1Nitto Denko Corporation
- Lamination arrangement for the laminating of a switch in a vehicle27 Feb 2025US 2025/0069826 A1Lisa Dräxlmaier GmbH
- Graphene enhanced and engineered materials for membrane touch switch and other flexible electronic structures14 Sep 2023US 2023/0287232 A1Alpha Assembly Solutions Inc.
- Systems With Durable Coatings13 Jul 2023US 2023/0223212 A1Apple Inc.
Most cited
By later US patents
- Foldable alpha numeric keyboard239US 6,861,961 B2Electrotextiles Company Limited · 2005
- Composite top membrane for flat panel switch arrays145US 4,258,096 ASheldahl, Inc. · 1981
- Keypad assembly126US 7,106,222 B2Siemens Communications, Inc. · 2006
- Electronic device with tactile keypad-overlay100US 6,259,044 B1Intermec IP Corp. · 2001
- Thin profile keypad with integrated LEDs81US 5,960,942 AEricsson Inc. · 1999