H01H 2219/01
Liquid crystal
H01H2219/01 (Liquid crystal) appears on 167 US grants and 101 published applications in this corpus.
Search patents in H01H- Granted patents
- 167
- Published applications
- 101
- Assignees
- 97
- Inventors
- 306
- Latest grant
- 27 May 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 1 | 0 |
| 1978 | 2 | 0 |
| 1979 | 0 | 0 |
| 1980 | 4 | 0 |
| 1981 | 1 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 1 | 0 |
| 1985 | 10 | 0 |
| 1986 | 2 | 0 |
| 1987 | 11 | 0 |
| 1988 | 5 | 0 |
| 1989 | 7 | 0 |
| 1990 | 6 | 0 |
| 1991 | 8 | 0 |
| 1992 | 4 | 0 |
| 1993 | 5 | 0 |
| 1994 | 1 | 0 |
| 1995 | 5 | 0 |
| 1996 | 1 | 0 |
| 1997 | 8 | 0 |
| 1998 | 1 | 0 |
| 1999 | 6 | 0 |
| 2000 | 6 | 0 |
| 2001 | 3 | 2 |
| 2002 | 5 | 7 |
| 2003 | 5 | 1 |
| 2004 | 3 | 1 |
| 2005 | 1 | 8 |
| 2006 | 2 | 7 |
| 2007 | 5 | 7 |
| 2008 | 2 | 10 |
| 2009 | 3 | 5 |
| 2010 | 2 | 6 |
| 2011 | 2 | 7 |
| 2012 | 4 | 3 |
| 2013 | 6 | 6 |
| 2014 | 6 | 2 |
| 2015 | 0 | 4 |
| 2016 | 3 | 3 |
| 2017 | 3 | 2 |
| 2018 | 0 | 4 |
| 2019 | 3 | 1 |
| 2020 | 5 | 4 |
| 2021 | 1 | 3 |
| 2022 | 3 | 2 |
| 2023 | 0 | 2 |
| 2024 | 2 | 3 |
| 2025 | 1 | 0 |
| 2026 | 0 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Specialized keyboard keycaps27 May 2025US 12,315,685 B2Hewlett-Packard Development Company, L. P.
- Button deck assembly for an electronic gaming machine and method for making the same19 Nov 2024US 12,147,101 B2Aristocrat Technologies Australia Pty Limited
- Button deck assembly for an electronic gaming machine and method for making the same2 Jan 2024US 11,860,460 B2Aristocrat Technologies Australia Pty Limited
- Peripheral having at least one transparent key comprising a flexible membrane5 Jul 2022US 11,379,050 B2Groupe Ldlc
- Button deck assembly for an electronic gaming machine and method for making the same31 May 2022US 11,347,091 B2Aristocrat Technologies Australia Pty Limited
- Mechanical keyboard with solar cell layer located beneath23 Apr 2026US 2026/0112553 A1Home Control Singapore Pte. Ltd.
- Specialized Keyboard Keycaps11 Jul 2024US 2024/0234046 A1Hewlett-Packard Development Company, L. P.
- Button deck assembly for an electronic gaming machine and method for making the same14 Mar 2024US 2024/0085730 A1Aristocrat Technologies Australia Pty Limited
- Pushbutton switch1 Feb 2024US 2024/0038464 A1Nkk Switches Co., Ltd.
- Key module and keyboard28 Sep 2023US 2023/0307196 A1Lite-On Technology Corporation
Most cited
By later US patents
- User interface for home automation system479US 6,140,987 AIntellinet, Inc. · 2000
- Remote commander297US 5,237,327 ASony Corporation · 1993
- Hand-held computer291US 4,545,023 AEngineering Project Development Limited · 1985
- Electronic apparatus and a method for manufacturing the same248US 5,038,251 ACasio Computer Co., Ltd. · 1991
- Method of using a liquid crystal display device as a data input device212US 4,224,615 ATexas Instruments Incorporated · 1980