B43L 3/001
Writing or drawing underlays: with illuminating devices
Official title: {with illuminating devices}
B43L3/001 (Writing or drawing underlays: with illuminating devices) appears on 30 US grants and 16 published applications in this corpus.
Search patents in B43L- Granted patents
- 30
- Published applications
- 16
- Assignees
- 7
- Inventors
- 46
- Latest grant
- 20 Sep 2022
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 0 | 0 |
| 1978 | 1 | 0 |
| 1979 | 1 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 1 | 0 |
| 1987 | 0 | 0 |
| 1988 | 3 | 0 |
| 1989 | 1 | 0 |
| 1990 | 3 | 0 |
| 1991 | 1 | 0 |
| 1992 | 1 | 0 |
| 1993 | 1 | 0 |
| 1994 | 2 | 0 |
| 1995 | 1 | 0 |
| 1996 | 1 | 0 |
| 1997 | 1 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 1 |
| 2005 | 1 | 1 |
| 2006 | 1 | 2 |
| 2007 | 2 | 1 |
| 2008 | 1 | 2 |
| 2009 | 1 | 2 |
| 2010 | 0 | 1 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 3 |
| 2014 | 1 | 0 |
| 2015 | 0 | 0 |
| 2016 | 0 | 0 |
| 2017 | 0 | 1 |
| 2018 | 0 | 1 |
| 2019 | 1 | 0 |
| 2020 | 1 | 0 |
| 2021 | 0 | 1 |
| 2022 | 1 | 0 |
By publication year. Applications have been published since 2001.
Subgroups
Granted patents
Recent patents
- Multifunctional illuminated lighting pad20 Sep 2022US 11,448,887 B2
- Heated writing device for use with thermochromatic ink21 Jul 2020US 10,717,313 B2NuCoat, Inc.
- Photoluminescent writing pad and notepad or notebook4 Jun 2019US 10,308,064 B2
- Writing guide1 Jul 2014US 8,763,263 B2
- Low cost automatically illuminated document holder14 Jul 2009US 7,559,665 B1
- Multifunctional Illuminated Lighting Pad22 Apr 2021US 2021/0116711 A1
- Photoluminescent writing pad and notepad or notebook11 Jan 2018US 2018/0009255 A1
- Heated writing device for use with thermochromatic ink28 Sep 2017US 2017/0274699 A1NuCoat, Inc.
- Substrate-Retaining Holder18 Jul 2013US 2013/0180936 A1
- Writing guide13 Jun 2013US 2013/0145635 A1
Most cited
By later US patents