B43L 13/04
Guides for rulers
B43L13/04 (Guides for rulers) appears on 87 US grants and 7 published applications in this corpus.
Search patents in B43L- Granted patents
- 87
- Published applications
- 7
- Assignees
- 29
- Inventors
- 112
- Latest grant
- 22 Mar 2022
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 4 | 0 |
| 1978 | 9 | 0 |
| 1979 | 9 | 0 |
| 1980 | 4 | 0 |
| 1981 | 4 | 0 |
| 1982 | 9 | 0 |
| 1983 | 6 | 0 |
| 1984 | 7 | 0 |
| 1985 | 6 | 0 |
| 1986 | 3 | 0 |
| 1987 | 3 | 0 |
| 1988 | 4 | 0 |
| 1989 | 2 | 0 |
| 1990 | 3 | 0 |
| 1991 | 1 | 0 |
| 1992 | 1 | 0 |
| 1993 | 0 | 0 |
| 1994 | 2 | 0 |
| 1995 | 1 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 3 | 0 |
| 2000 | 0 | 0 |
| 2001 | 1 | 1 |
| 2002 | 0 | 2 |
| 2003 | 1 | 1 |
| 2004 | 0 | 0 |
| 2005 | 1 | 1 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 0 |
| 2014 | 0 | 0 |
| 2015 | 0 | 0 |
| 2016 | 0 | 0 |
| 2017 | 0 | 0 |
| 2018 | 0 | 0 |
| 2019 | 0 | 0 |
| 2020 | 1 | 0 |
| 2021 | 0 | 1 |
| 2022 | 1 | 0 |
| 2023 | 0 | 0 |
| 2024 | 0 | 1 |
By publication year. Applications have been published since 2001.
Subgroups
Granted patents
Recent patents
- Combinational template and scale ruler for drawing parallel 3-dimensions22 Mar 2022US 11,279,167 B2
- Etch a sketch tool with removable and replacable glasses and method thereof18 Aug 2020US 10,744,814 B1
- Multi-function finger guide20 Sep 2005US 6,944,961 B2
- Writing aid25 Mar 2003US 6,536,126 B2
- Drywall marking and scoring guide18 Sep 2001US 6,289,594 B1
- Multi-purpose analogue device for tracing curves and geometric transformations26 Sep 2024US 2024/0316981 A1Machines4Math S.R.L.
- Combinational template and scale ruler for drawing parallel 3-dimensions16 Sep 2021US 2021/0283944 A1
- Multi-function finger guide3 Mar 2005US 2005/0044734 A1
- Writing aid6 Feb 2003US 2003/0024130 A1
- Drawing board assembly having angle scale device24 Oct 2002US 2002/0152623 A1
Most cited
By later US patents
- Multi-axes positioning system23US 4,327,596 ABeta Engineering & Development Ltd. · 1982
- Adjustable traveling mahl and magnetic support for mounting artist's canvases23US 4,717,109 A1988
- Cropping guide22US 4,171,573 A1979
- Drawing device having retractable stylus18US 4,856,197 ABuddy L Corporation · 1989
- Drywall marking and scoring guide18US 6,289,594 B12001