G09B 19/02
Counting
Official title: Counting; Calculating (abacus G06C1/00)
G09B19/02 (Counting) appears on 547 US grants and 541 published applications in this corpus.
Search patents in G09B- Granted patents
- 547
- Published applications
- 541
- Assignees
- 151
- Inventors
- 942
- Latest grant
- 15 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 11 | 0 |
| 1977 | 9 | 0 |
| 1978 | 14 | 0 |
| 1979 | 9 | 0 |
| 1980 | 13 | 0 |
| 1981 | 7 | 0 |
| 1982 | 10 | 0 |
| 1983 | 9 | 0 |
| 1984 | 11 | 0 |
| 1985 | 13 | 0 |
| 1986 | 4 | 0 |
| 1987 | 7 | 0 |
| 1988 | 6 | 0 |
| 1989 | 7 | 0 |
| 1990 | 6 | 0 |
| 1991 | 5 | 0 |
| 1992 | 14 | 0 |
| 1993 | 5 | 0 |
| 1994 | 8 | 0 |
| 1995 | 9 | 0 |
| 1996 | 7 | 0 |
| 1997 | 7 | 0 |
| 1998 | 14 | 0 |
| 1999 | 12 | 0 |
| 2000 | 13 | 0 |
| 2001 | 8 | 3 |
| 2002 | 6 | 14 |
| 2003 | 15 | 16 |
| 2004 | 18 | 30 |
| 2005 | 8 | 12 |
| 2006 | 15 | 17 |
| 2007 | 9 | 26 |
| 2008 | 4 | 26 |
| 2009 | 10 | 17 |
| 2010 | 8 | 12 |
| 2011 | 14 | 25 |
| 2012 | 4 | 9 |
| 2013 | 7 | 23 |
| 2014 | 8 | 20 |
| 2015 | 7 | 21 |
| 2016 | 11 | 50 |
| 2017 | 21 | 30 |
| 2018 | 15 | 31 |
| 2019 | 21 | 38 |
| 2020 | 23 | 26 |
| 2021 | 25 | 22 |
| 2022 | 17 | 21 |
| 2023 | 13 | 16 |
| 2024 | 9 | 17 |
| 2025 | 12 | 12 |
| 2026 | 9 | 7 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
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
- 3D regrouping for hands on learning26 May 2026US 12,640,052 B2Basel Alkhalily
- Educational aid for teaching mathematics10 Mar 2026US 12,573,316 B2Equate-Ing IP Holdco, LLC
- 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