H01H 2217/03
Concave plane
H01H2217/03 (Concave plane) appears on 17 US grants and 7 published applications in this corpus.
Search patents in H01H- Granted patents
- 17
- Published applications
- 7
- Assignees
- 17
- Inventors
- 31
- Latest grant
- 2 Jun 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1984 | 1 | 0 |
| 1985 | 3 | 0 |
| 1986 | 1 | 0 |
| 1987 | 1 | 0 |
| 1988 | 1 | 0 |
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 2 | 0 |
| 1997 | 0 | 0 |
| 1998 | 1 | 0 |
| 1999 | 1 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 1 |
| 2002 | 0 | 0 |
| 2003 | 1 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 1 |
| 2006 | 1 | 0 |
| 2007 | 1 | 1 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 0 |
| 2014 | 0 | 0 |
| 2015 | 0 | 1 |
| 2016 | 0 | 0 |
| 2017 | 0 | 1 |
| 2018 | 0 | 0 |
| 2019 | 1 | 0 |
| 2020 | 0 | 0 |
| 2021 | 0 | 0 |
| 2022 | 0 | 0 |
| 2023 | 0 | 0 |
| 2024 | 0 | 0 |
| 2025 | 0 | 2 |
| 2026 | 1 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Modified tactile input attachment and device2 Jun 2026US 12,646,667 B2Tippy Type LLC
- Operating device15 Jan 2019US 10,181,386 B2Denso Corporation
- Keyboard contoured to the natural shape of the hand27 Feb 2007US 7,182,533 B1Prosper Street Technologies, L.L.C.
- Keyboards7 Nov 2006US 7,131,781 B2Darfon Electronics Corp.
- Barrier free computer keyboard6 May 2003US 6,558,056 B2
- Modified tactile input attachment and device21 Aug 2025US 2025/0266221 A1Tippy Type LLC
- Ergonomic Thumb-Actuable Keyboard24 Apr 2025US 2025/0130650 A1Innaworks Development Limited
- Operating device2 Nov 2017US 2017/0316903 A1Denso Corporation
- Operating device for vehicle12 Feb 2015US 2015/0041299 A1Honda Motor Co., Ltd.
- Impact absorbing keyboard, contoured to the natural shape of the hand8 Nov 2007US 2007/0258747 A1Prosper Street Technologies, L.L.C.
Most cited
By later US patents
- Membrane switch72US 5,561,278 A1996
- Key-holding structure of a keyboard with curved operating surface of keys44US 4,560,844 ABrother Kogyo Kabushiki Kaisha · 1985
- Keyboard36US 4,560,845 ABrother Kogyo Kabushiki Kaisha · 1985
- Electronic keyboard35US 4,467,150 ADigital Equipment Corporation · 1984
- Flexing keyboard structure for a notebook computer33US 5,490,037 ACompaq Computer Corporation · 1996