G09B 7/06
Electrically-operated teaching apparatus or devices working with questions and answers: of the
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 from the answers
G09B7/06 (Electrically-operated teaching apparatus or devices working with questions and answers: of the) appears on 904 US grants and 1,316 published applications in this corpus.
Search patents in G09B- Granted patents
- 904
- Published applications
- 1,316
- Assignees
- 610
- Inventors
- 2,627
- Latest grant
- 29 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 16 | 0 |
| 1977 | 14 | 0 |
| 1978 | 14 | 0 |
| 1979 | 8 | 0 |
| 1980 | 10 | 0 |
| 1981 | 13 | 0 |
| 1982 | 3 | 0 |
| 1983 | 3 | 0 |
| 1984 | 7 | 0 |
| 1985 | 10 | 0 |
| 1986 | 10 | 0 |
| 1987 | 4 | 0 |
| 1988 | 2 | 0 |
| 1989 | 5 | 0 |
| 1990 | 4 | 0 |
| 1991 | 8 | 0 |
| 1992 | 12 | 0 |
| 1993 | 10 | 0 |
| 1994 | 13 | 0 |
| 1995 | 13 | 0 |
| 1996 | 7 | 0 |
| 1997 | 10 | 0 |
| 1998 | 16 | 0 |
| 1999 | 7 | 0 |
| 2000 | 10 | 0 |
| 2001 | 9 | 2 |
| 2002 | 6 | 15 |
| 2003 | 5 | 7 |
| 2004 | 6 | 17 |
| 2005 | 5 | 15 |
| 2006 | 8 | 19 |
| 2007 | 3 | 14 |
| 2008 | 0 | 41 |
| 2009 | 4 | 33 |
| 2010 | 8 | 24 |
| 2011 | 3 | 30 |
| 2012 | 12 | 29 |
| 2013 | 19 | 38 |
| 2014 | 32 | 97 |
| 2015 | 24 | 70 |
| 2016 | 36 | 84 |
| 2017 | 42 | 111 |
| 2018 | 38 | 113 |
| 2019 | 59 | 98 |
| 2020 | 53 | 85 |
| 2021 | 71 | 90 |
| 2022 | 73 | 65 |
| 2023 | 51 | 68 |
| 2024 | 54 | 62 |
| 2025 | 30 | 47 |
| 2026 | 24 | 42 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- G09B 7/08Characterised by modifying the teaching programme in response to a wrong answer224
- G09B 7/07Providing for individual presentation of questions to a plurality of student stations195
- G09B 7/063With hand-placed probe or plug79
- G09B 7/066With answer indicating cards, blocks76
- G09B 7/10Wherein a set of answers is common to a plurality of questions59
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