B43L 11/00
Non-circular-curve-drawing instruments
Official title: Non-circular-curve-drawing instruments (curve rulers or templets B43L13/20)
B43L11/00 (Non-circular-curve-drawing instruments) appears on 82 US grants and 12 published applications in this corpus.
Search patents in B43L- Granted patents
- 82
- Published applications
- 12
- Assignees
- 15
- Inventors
- 103
- Latest grant
- 7 May 2024
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 5 | 0 |
| 1978 | 1 | 0 |
| 1979 | 7 | 0 |
| 1980 | 8 | 0 |
| 1981 | 1 | 0 |
| 1982 | 1 | 0 |
| 1983 | 2 | 0 |
| 1984 | 5 | 0 |
| 1985 | 0 | 0 |
| 1986 | 8 | 0 |
| 1987 | 4 | 0 |
| 1988 | 2 | 0 |
| 1989 | 2 | 0 |
| 1990 | 3 | 0 |
| 1991 | 3 | 0 |
| 1992 | 3 | 0 |
| 1993 | 1 | 0 |
| 1994 | 1 | 0 |
| 1995 | 1 | 0 |
| 1996 | 3 | 0 |
| 1997 | 0 | 0 |
| 1998 | 2 | 0 |
| 1999 | 3 | 0 |
| 2000 | 1 | 0 |
| 2001 | 2 | 1 |
| 2002 | 2 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 1 |
| 2005 | 0 | 0 |
| 2006 | 2 | 0 |
| 2007 | 0 | 0 |
| 2008 | 1 | 1 |
| 2009 | 1 | 2 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 1 |
| 2013 | 1 | 0 |
| 2014 | 0 | 1 |
| 2015 | 0 | 0 |
| 2016 | 0 | 1 |
| 2017 | 1 | 0 |
| 2018 | 1 | 0 |
| 2019 | 0 | 1 |
| 2020 | 1 | 0 |
| 2021 | 0 | 0 |
| 2022 | 0 | 0 |
| 2023 | 0 | 1 |
| 2024 | 1 | 0 |
| 2025 | 0 | 2 |
By publication year. Applications have been published since 2001.
Subgroups
Granted patents
Recent patents
- Pattern maker7 May 2024US 11,975,563 B2Crayola LLC
- Spiral art device15 Dec 2020US 10,864,766 B2Crayola LLC
- Pen track27 Mar 2018US 9,925,822 B2
- Scalable rules capable of creating size-adjustable circles, arcs, and curved shapes26 Sep 2017US 9,772,172 B2
- Drawing device for creating mandala11 Jun 2013US 8,458,918 B2Ostberg Design APS
- Method and apparatus for creating designs, images, videos, patterns, or altered surfaces24 Apr 2025US 2025/0128538 A1
- Spin and/or spiral decorating device for artwork27 Mar 2025US 2025/0100320 A1Crayola LLC
- Pattern maker4 May 2023US 2023/0133300 A1Crayola LLC
- Spiral Art Device24 Jan 2019US 2019/0023059 A1Crayola LLC
- Pen track1 Dec 2016US 2016/0347110 A1
Most cited
By later US patents