B43L 9/02
Compasses
Official title: Compasses (proportional compasses B43L9/08; {Compasses for drawing ellipses B43L11/041;} Compasses for drawing spirals B43L11/06)
B43L9/02 (Compasses) appears on 91 US grants and 48 published applications in this corpus.
Search patents in B43L- Granted patents
- 91
- Published applications
- 48
- Assignees
- 28
- Inventors
- 121
- Latest grant
- 1 Jul 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 4 | 0 |
| 1978 | 3 | 0 |
| 1979 | 1 | 0 |
| 1980 | 2 | 0 |
| 1981 | 1 | 0 |
| 1982 | 3 | 0 |
| 1983 | 0 | 0 |
| 1984 | 1 | 0 |
| 1985 | 5 | 0 |
| 1986 | 1 | 0 |
| 1987 | 2 | 0 |
| 1988 | 2 | 0 |
| 1989 | 3 | 0 |
| 1990 | 2 | 0 |
| 1991 | 2 | 0 |
| 1992 | 3 | 0 |
| 1993 | 4 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 1 | 0 |
| 1997 | 0 | 0 |
| 1998 | 5 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 2 | 1 |
| 2002 | 2 | 3 |
| 2003 | 3 | 5 |
| 2004 | 0 | 2 |
| 2005 | 6 | 4 |
| 2006 | 4 | 2 |
| 2007 | 2 | 2 |
| 2008 | 3 | 3 |
| 2009 | 1 | 2 |
| 2010 | 2 | 5 |
| 2011 | 3 | 3 |
| 2012 | 3 | 1 |
| 2013 | 0 | 0 |
| 2014 | 2 | 0 |
| 2015 | 1 | 1 |
| 2016 | 2 | 2 |
| 2017 | 1 | 1 |
| 2018 | 1 | 0 |
| 2019 | 1 | 4 |
| 2020 | 2 | 1 |
| 2021 | 2 | 1 |
| 2022 | 0 | 1 |
| 2023 | 0 | 2 |
| 2024 | 2 | 0 |
| 2025 | 1 | 2 |
By publication year. Applications have been published since 2001.
Subgroups
Granted patents
Recent patents
- Woodworking circle-drawing tool1 Jul 2025US 12,344,027 B2
- Centerless drafting tool4 Jun 2024US 11,999,186 B2
- Sliding adjustable compass having a support9 Apr 2024US 11,953,319 B2
- Framing square7 Sep 2021US 11,110,739 B2Milwaukee Electric Tool Corporation
- Multifunctional writing device for automatic exam proctoring and grading10 Aug 2021US 11,084,318 B2
- Multifunctional geometry tool23 Oct 2025US 2025/0326246 A1
- Push-action compass7 Aug 2025US 2025/0249701 A1Guangzhou Wusheng Stationery Co.,Ltd
- Centerless compass17 Aug 2023US 2023/0256770 A1
- Woodworking Circle-Drawing Tool11 May 2023US 2023/0147660 A1
- Sliding Adjustable Compass Having a Support28 Jul 2022US 2022/0236044 A1
Most cited
By later US patents