B43L 3/00
Writing or drawing underlays
Official title: Writing or drawing underlays, e.g. blotting pads (blotters B43L17/00; {supports for note pads: B42D5/005})
B43L3/00 (Writing or drawing underlays) appears on 134 US grants and 98 published applications in this corpus.
Search patents in B43L- Granted patents
- 134
- Published applications
- 98
- Assignees
- 54
- Inventors
- 225
- Latest grant
- 22 Oct 2024
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 3 | 0 |
| 1977 | 1 | 0 |
| 1978 | 1 | 0 |
| 1979 | 2 | 0 |
| 1980 | 0 | 0 |
| 1981 | 1 | 0 |
| 1982 | 1 | 0 |
| 1983 | 2 | 0 |
| 1984 | 3 | 0 |
| 1985 | 3 | 0 |
| 1986 | 4 | 0 |
| 1987 | 2 | 0 |
| 1988 | 8 | 0 |
| 1989 | 5 | 0 |
| 1990 | 11 | 0 |
| 1991 | 6 | 0 |
| 1992 | 3 | 0 |
| 1993 | 3 | 0 |
| 1994 | 5 | 0 |
| 1995 | 2 | 0 |
| 1996 | 2 | 0 |
| 1997 | 3 | 0 |
| 1998 | 1 | 0 |
| 1999 | 0 | 0 |
| 2000 | 1 | 0 |
| 2001 | 2 | 0 |
| 2002 | 0 | 1 |
| 2003 | 1 | 1 |
| 2004 | 1 | 3 |
| 2005 | 2 | 7 |
| 2006 | 4 | 6 |
| 2007 | 3 | 7 |
| 2008 | 3 | 7 |
| 2009 | 2 | 4 |
| 2010 | 2 | 7 |
| 2011 | 3 | 4 |
| 2012 | 1 | 5 |
| 2013 | 2 | 7 |
| 2014 | 4 | 8 |
| 2015 | 3 | 5 |
| 2016 | 4 | 0 |
| 2017 | 3 | 2 |
| 2018 | 1 | 5 |
| 2019 | 2 | 6 |
| 2020 | 5 | 5 |
| 2021 | 6 | 1 |
| 2022 | 4 | 4 |
| 2023 | 2 | 1 |
| 2024 | 1 | 1 |
| 2025 | 0 | 1 |
By publication year. Applications have been published since 2001.
Subgroups
Granted patents
Recent patents
- Writing system having magnetic writing tool and magnetic support surface therefor22 Oct 2024US 12,122,180 B2SteadyScrib, LLC
- Tablet device for underwater or severe environment4 Jul 2023US 11,691,452 B2
- Micro-suction reusable and repositionable writing surfaces21 Mar 2023US 11,607,903 B2Comsero, Inc.
- Clipboard jacket18 Oct 2022US 11,472,218 B1
- Multifunctional illuminated lighting pad20 Sep 2022US 11,448,887 B2
- Whiteboard substrate with mounting base28 Aug 2025US 2025/0273096 A1Teachergeek, Inc.
- Writing system having magnetic writing tool and magnetic support surface therefor8 Feb 2024US 2024/0042791 A1SteadyScrib, LLC
- Micro-suction reusable and repositionable writing surfaces29 Jun 2023US 2023/0202225 A1Comsero, Inc.
- Multi-sided modular erasable writing panel and system for attachment thereof6 Oct 2022US 2022/0314685 A1Comsero, Inc.
- Self-contained stenciling kit for producing multicolor and/or unicolor composite images22 Sep 2022US 2022/0297461 A1Innovative Art Concepts, LLC
Most cited
By later US patents