G09B 3/06
Manually or mechanically operated teaching appliances working with questions and answers: of
Official title: of the multiple-choice answer type, i.e. where a given question is provided with a series of answers and a choice has to be made
G09B3/06 (Manually or mechanically operated teaching appliances working with questions and answers: of) appears on 88 US grants and 38 published applications in this corpus.
Search patents in G09B- Granted patents
- 88
- Published applications
- 38
- Assignees
- 38
- Inventors
- 149
- Latest grant
- 18 Mar 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 7 | 0 |
| 1977 | 9 | 0 |
| 1978 | 6 | 0 |
| 1979 | 3 | 0 |
| 1980 | 2 | 0 |
| 1981 | 1 | 0 |
| 1982 | 1 | 0 |
| 1983 | 2 | 0 |
| 1984 | 5 | 0 |
| 1985 | 5 | 0 |
| 1986 | 1 | 0 |
| 1987 | 3 | 0 |
| 1988 | 2 | 0 |
| 1989 | 1 | 0 |
| 1990 | 3 | 0 |
| 1991 | 0 | 0 |
| 1992 | 2 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 2 | 0 |
| 1997 | 3 | 0 |
| 1998 | 0 | 0 |
| 1999 | 3 | 0 |
| 2000 | 3 | 0 |
| 2001 | 2 | 0 |
| 2002 | 1 | 1 |
| 2003 | 2 | 1 |
| 2004 | 2 | 1 |
| 2005 | 0 | 0 |
| 2006 | 0 | 1 |
| 2007 | 0 | 0 |
| 2008 | 0 | 3 |
| 2009 | 0 | 1 |
| 2010 | 1 | 3 |
| 2011 | 0 | 0 |
| 2012 | 2 | 0 |
| 2013 | 2 | 0 |
| 2014 | 1 | 1 |
| 2015 | 0 | 4 |
| 2016 | 2 | 1 |
| 2017 | 1 | 2 |
| 2018 | 1 | 0 |
| 2019 | 0 | 2 |
| 2020 | 1 | 3 |
| 2021 | 1 | 4 |
| 2022 | 0 | 1 |
| 2023 | 2 | 2 |
| 2024 | 2 | 3 |
| 2025 | 1 | 3 |
| 2026 | 0 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Dynamically adjusting instructions in an augmented-reality experience18 Mar 2025US 12,254,785 B2Google Inc.
- Multi-mode scanning camera system and method2 Jul 2024US 12,028,496 B2Imaging Business Machines LLC
- Interactive multi-chamber container19 Mar 2024US 11,930,943 B2
- Artificial intelligence (AI) and augmented reality (AR) enhanced personal care devices/apparatuses15 Aug 2023US 11,723,449 B2
- Method for VR sickness assessment considering neural mismatch model and the apparatus thereof11 Jul 2023US 11,699,072 B2Korea Advanced Institute of Science and Technology
- Rotatable toy system2 Jul 2026US 2026/0183679 A14M Industrial Development Limited
- Ai powered dynamic story generation system for individualized learning and a method thereof16 Oct 2025US 2025/0322766 A12hr Learning, Inc.
- Math engine(s) for enhanced math assignments within educational environments2 Oct 2025US 2025/0308405 A1Microsoft Technology Licensing, LLC
- Dynamically Adjusting Augmented-Reality Experience for Multi-Part Image Augmentation5 Jun 2025US 2025/0182643 A1Google Inc.
- Interactive Multi-chamber Container7 Nov 2024US 2024/0366003 A1
Most cited
By later US patents
- Novel educational toy210US 4,027,402 A1977
- Information gathering system99US 4,428,733 A1984
- Apparatus for determining the result of answers to a set of related questions55US 4,213,251 ANational Research Development Corporation · 1980
- Low visibility answer sheet and method of testing53US 3,995,381 A1976
- Method for recording uncoded scores or ratings by multiple evaluators on a single automatic machine scannable document35US 4,478,584 A1984