G09B 3/04
Of chart form
Official title: of chart form (masks G09B17/02)
G09B3/04 (Of chart form) appears on 58 US grants and 16 published applications in this corpus.
Search patents in G09B- Granted patents
- 58
- Published applications
- 16
- Assignees
- 19
- Inventors
- 87
- Latest grant
- 21 Apr 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 1 | 0 |
| 1978 | 1 | 0 |
| 1979 | 2 | 0 |
| 1980 | 4 | 0 |
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 2 | 0 |
| 1984 | 1 | 0 |
| 1985 | 1 | 0 |
| 1986 | 1 | 0 |
| 1987 | 0 | 0 |
| 1988 | 1 | 0 |
| 1989 | 1 | 0 |
| 1990 | 4 | 0 |
| 1991 | 2 | 0 |
| 1992 | 6 | 0 |
| 1993 | 6 | 0 |
| 1994 | 2 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 1 | 0 |
| 1998 | 4 | 0 |
| 1999 | 0 | 0 |
| 2000 | 9 | 0 |
| 2001 | 0 | 0 |
| 2002 | 1 | 1 |
| 2003 | 0 | 1 |
| 2004 | 0 | 3 |
| 2005 | 0 | 0 |
| 2006 | 0 | 2 |
| 2007 | 1 | 1 |
| 2008 | 0 | 0 |
| 2009 | 1 | 0 |
| 2010 | 0 | 1 |
| 2011 | 0 | 0 |
| 2012 | 0 | 1 |
| 2013 | 0 | 0 |
| 2014 | 0 | 2 |
| 2015 | 0 | 0 |
| 2016 | 0 | 0 |
| 2017 | 0 | 1 |
| 2018 | 0 | 0 |
| 2019 | 1 | 0 |
| 2020 | 1 | 0 |
| 2021 | 0 | 1 |
| 2022 | 0 | 0 |
| 2023 | 1 | 1 |
| 2024 | 0 | 0 |
| 2025 | 0 | 1 |
| 2026 | 1 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Apparatus and method for recursive use of articles in performance of activities21 Apr 2026US 12,609,041 B2
- Answer correction method and device5 Sep 2023US 11,749,128 B2Hangzhou Dana Technology Inc.
- Multisensory interface control method, multisensory interface control apparatus, and multisensory interface system18 Feb 2020US 10,563,997 B2Denso Corporation
- Image display device, image display method, and computer program12 Mar 2019US 10,228,895 B2Sony Corporation
- Method of scoring a printed form having targets to be marked21 Jul 2009US 7,564,587 B2Scan-0ptics LLC
- Method for supporting self-directed learning by student6 Feb 2025US 2025/0046204 A1
- Apparatus and Method for Recursive Use of Articles in Performance of Activities16 Nov 2023US 2023/0368685 A1
- Answer correction method and device22 Jul 2021US 2021/0225188 A1Hangzhou Dana Technology Inc.
- Multisensory interface control method, multisensory interface control apparatus, and multisensory interface system2 Nov 2017US 2017/0314951 A1Denso Corporation
- System and methods for creating printouts that may be manipulated by mfd18 Sep 2014US 2014/0281930 A1Fuji Xerox Co., Ltd.
Most cited
By later US patents
- Reusable hidden indicia printed sheet78US 5,139,572 A1992
- Teaching or amusement apparatus71US 4,627,819 APrice/Stern/Sloan Publishers, Inc. · 1986
- Secure contest card64US 4,095,824 ADittler Brothers Incorporated · 1978
- Ball point pen, ink, and its eradicator system38US 4,227,930 ABurroughs Corporation · 1980
- Color changing print32US 5,215,956 A1993