B43L 13/14
Devices for drawing in perspective
B43L13/14 (Devices for drawing in perspective) appears on 88 US grants and 25 published applications in this corpus.
Search patents in B43L- Granted patents
- 88
- Published applications
- 25
- Assignees
- 22
- Inventors
- 111
- Latest grant
- 17 Oct 2023
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 6 | 0 |
| 1977 | 3 | 0 |
| 1978 | 2 | 0 |
| 1979 | 6 | 0 |
| 1980 | 5 | 0 |
| 1981 | 2 | 0 |
| 1982 | 3 | 0 |
| 1983 | 5 | 0 |
| 1984 | 4 | 0 |
| 1985 | 1 | 0 |
| 1986 | 5 | 0 |
| 1987 | 3 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 2 | 0 |
| 1991 | 1 | 0 |
| 1992 | 3 | 0 |
| 1993 | 1 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 3 | 0 |
| 1998 | 4 | 0 |
| 1999 | 0 | 0 |
| 2000 | 2 | 0 |
| 2001 | 0 | 0 |
| 2002 | 2 | 1 |
| 2003 | 1 | 3 |
| 2004 | 4 | 2 |
| 2005 | 2 | 2 |
| 2006 | 2 | 2 |
| 2007 | 1 | 0 |
| 2008 | 2 | 1 |
| 2009 | 1 | 1 |
| 2010 | 0 | 0 |
| 2011 | 1 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 0 |
| 2014 | 0 | 0 |
| 2015 | 0 | 1 |
| 2016 | 1 | 1 |
| 2017 | 0 | 0 |
| 2018 | 1 | 1 |
| 2019 | 0 | 1 |
| 2020 | 2 | 3 |
| 2021 | 1 | 2 |
| 2022 | 2 | 2 |
| 2023 | 3 | 1 |
| 2024 | 0 | 0 |
| 2025 | 0 | 0 |
| 2026 | 0 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Fractal-based mandala drawing toolset17 Oct 2023US 11,787,224 B2
- Drawing assisting tool29 Aug 2023US 11,738,591 B2
- Graphic alignment tool and method of using the same18 Apr 2023US 11,628,679 B2
- Artist perspective tool13 Sep 2022US 11,440,338 B2
- Handwriting support device, handwriting support method and program11 Jan 2022US 11,222,563 B2FUJIFILM Corporation
- Viewfinder tool for artists9 Jul 2026US 2026/0192594 A1
- Adaptive object snapping for perspective images21 Dec 2023US 2023/0406031 A1Adobe Inc.
- A fractal-based mandala drawing toolset14 Jul 2022US 2022/0219484 A1
- A drawing assisting tool31 Mar 2022US 2022/0097441 A1
- Graphic alignment tool and method of using the same8 Jul 2021US 2021/0206158 A1
Most cited
By later US patents
- Electronic print board54US 4,587,568 AOki Electric Industry Co., Ltd. · 1986
- Video communication system allowing graphic additions to the images communicated24US 4,371,893 A1983
- Matting device22US 4,461,086 A1984
- Educational kit18US 5,785,528 AInvicta Toys & Games Limited · 1998
- Adjustable grid line device13US 3,939,564 A1976