H01H 2231/002
Calculator, computer
H01H2231/002 (Calculator, computer) appears on 140 US grants and 113 published applications in this corpus.
Search patents in H01H- Granted patents
- 140
- Published applications
- 113
- Assignees
- 66
- Inventors
- 280
- Latest grant
- 16 Dec 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 6 | 0 |
| 1979 | 3 | 0 |
| 1980 | 7 | 0 |
| 1981 | 5 | 0 |
| 1982 | 2 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 2 | 0 |
| 1986 | 1 | 0 |
| 1987 | 5 | 0 |
| 1988 | 2 | 0 |
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 1 | 0 |
| 1995 | 0 | 0 |
| 1996 | 1 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 1 | 0 |
| 2001 | 0 | 0 |
| 2002 | 1 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 2 |
| 2008 | 1 | 1 |
| 2009 | 0 | 1 |
| 2010 | 0 | 0 |
| 2011 | 1 | 8 |
| 2012 | 7 | 2 |
| 2013 | 1 | 2 |
| 2014 | 3 | 5 |
| 2015 | 2 | 9 |
| 2016 | 4 | 7 |
| 2017 | 7 | 11 |
| 2018 | 14 | 14 |
| 2019 | 11 | 6 |
| 2020 | 10 | 13 |
| 2021 | 11 | 11 |
| 2022 | 10 | 9 |
| 2023 | 8 | 4 |
| 2024 | 7 | 5 |
| 2025 | 4 | 3 |
By publication year. Applications have been published since 2001.
Recent patents
- Keyboard device16 Dec 2025US 12,500,050 B2Chicony Electronics Co., Ltd.
- Keyboard assembly, device framework, and electronic device10 Jun 2025US 12,327,699 B2Huawei Technologies Co., Ltd.
- Analog input device, computing system and method for receiving and processing analog input6 May 2025US 12,294,362 B2Razer (Asia-Pacific) Pte. Ltd.
- Calculator with handwriting pad14 Jan 2025US 12,197,376 B1
- Memory devices including strings of memory cells, and related electronic systems8 Oct 2024US 12,113,019 B2Micron Technology, Inc.
- Keycap with an Interchangeable Keycap Top16 Oct 2025US 2025/0322998 A1
- Analog input device, computing system and method for receiving and processing analog input17 Jul 2025US 2025/0233588 A1Razer (Asia-Pacific) Pte. Ltd.
- Electronic device24 Apr 2025US 2025/0132108 A1Casio Computer Co., Ltd.
- Keyboard and electronic device10 Oct 2024US 2024/0339273 A1Honor Device Co., Ltd.
- Mechanical keyboard with printed membrane26 Sep 2024US 2024/0321534 A1Logitech Europe S. A.
Most cited
By later US patents
- Hand-held computer291US 4,545,023 AEngineering Project Development Limited · 1985
- Electric apparatus for displaying a plurality of key symbols on a single passive display90US 4,313,108 ACasio Computer Co., Ltd. · 1982
- Key signal entering device for thin electronic apparatus77US 4,261,042 ACanon Kabushiki Kaisha · 1981
- Calculator with interchangeable keyset76US 4,092,527 ATexas Instruments Incorporated · 1978
- Portable calculator58US 4,002,892 A1977