G09B 19/025
With electrically operated apparatus or devices
Official title: {with electrically operated apparatus or devices}
G09B19/025 (With electrically operated apparatus or devices) appears on 198 US grants and 240 published applications in this corpus.
Search patents in G09B- Granted patents
- 198
- Published applications
- 240
- Assignees
- 78
- Inventors
- 394
- Latest grant
- 15 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 3 | 0 |
| 1977 | 6 | 0 |
| 1978 | 6 | 0 |
| 1979 | 1 | 0 |
| 1980 | 3 | 0 |
| 1981 | 1 | 0 |
| 1982 | 4 | 0 |
| 1983 | 2 | 0 |
| 1984 | 4 | 0 |
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 1 | 0 |
| 1989 | 1 | 0 |
| 1990 | 3 | 0 |
| 1991 | 0 | 0 |
| 1992 | 4 | 0 |
| 1993 | 0 | 0 |
| 1994 | 2 | 0 |
| 1995 | 2 | 0 |
| 1996 | 2 | 0 |
| 1997 | 1 | 0 |
| 1998 | 2 | 0 |
| 1999 | 3 | 0 |
| 2000 | 1 | 0 |
| 2001 | 2 | 0 |
| 2002 | 2 | 1 |
| 2003 | 0 | 7 |
| 2004 | 4 | 16 |
| 2005 | 3 | 1 |
| 2006 | 6 | 5 |
| 2007 | 3 | 2 |
| 2008 | 0 | 3 |
| 2009 | 2 | 4 |
| 2010 | 2 | 3 |
| 2011 | 3 | 10 |
| 2012 | 0 | 2 |
| 2013 | 3 | 6 |
| 2014 | 3 | 9 |
| 2015 | 2 | 6 |
| 2016 | 6 | 36 |
| 2017 | 15 | 22 |
| 2018 | 6 | 17 |
| 2019 | 14 | 21 |
| 2020 | 17 | 18 |
| 2021 | 17 | 12 |
| 2022 | 8 | 14 |
| 2023 | 11 | 4 |
| 2024 | 6 | 8 |
| 2025 | 6 | 6 |
| 2026 | 4 | 7 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Sequentially operated modules15 Sep 2026US 12,734,435 B2May Patents Ltd.
- Sequentially operated modules18 Aug 2026US 12,708,840 B2May Patents Ltd.
- Determining device assistant manner of reply14 Jul 2026US 12,681,992 B2International Business Machines Corporation
- Systems and methods for automatic distillation of concepts from math problems and dynamic construction and testing of math problems from a collection of math concepts24 Feb 2026US 12,562,075 B2ValueCorp Pacific, Inc.
- Test codes for secure test mode on math assistance devices23 Sep 2025US 12,423,217 B2Texas Instruments Incorporated
- Sequentially operated modules9 Jul 2026US 2026/0192186 A1May Patents Ltd.
- Systems and methods for automatic distillation of concepts from math problems and dynamic construction and testing of math problems from a collection of math concepts2 Jul 2026US 2026/0188140 A1ValueCorp Pacific, Inc.
- Sequentially operated modules21 May 2026US 2026/0138002 A1May Patents Ltd.
- Sequentially operated modules14 May 2026US 2026/0131231 A1May Patents Ltd.
- Electronic educational toy for children7 May 2026US 2026/0127974 A1Minnan Normal University
Most cited
By later US patents
- Character recognition educational system223US 5,823,782 ATinkers & Chance · 1998
- Electronic instructional apparatus181US 4,968,255 AVideo Technology Industries, Inc. · 1990
- Interactive educational toy138US 5,944,533 AKnowledge Kids Enterprises, Inc. · 1999
- Interactive educational toy100US 6,463,257 B1Knowledge Kids Enterprises, Inc. · 2002
- Collaborative, social online education and whiteboard techniques94US 10,126,927 B1Study Social, Inc. · 2018