B43K 8/20
Pens with writing-points other than nibs or balls: with roller writing-points
Official title: with roller writing-points
B43K8/20 (Pens with writing-points other than nibs or balls: with roller writing-points) appears on 14 US grants and 11 published applications in this corpus.
Search patents in B43K- Granted patents
- 14
- Published applications
- 11
- Assignees
- 8
- Inventors
- 40
- Latest grant
- 10 Jun 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1983 | 1 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 2 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 1 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 1 | 0 |
| 1997 | 1 | 0 |
| 1998 | 1 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 1 |
| 2007 | 0 | 2 |
| 2008 | 1 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 1 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 0 |
| 2014 | 0 | 0 |
| 2015 | 0 | 1 |
| 2016 | 0 | 0 |
| 2017 | 0 | 2 |
| 2018 | 1 | 0 |
| 2019 | 1 | 2 |
| 2020 | 0 | 0 |
| 2021 | 0 | 0 |
| 2022 | 0 | 0 |
| 2023 | 1 | 2 |
| 2024 | 0 | 0 |
| 2025 | 1 | 1 |
By publication year. Applications have been published since 2001.
Recent patents
- Pocket size pen10 Jun 2025US 12,325,257 B2
- Two-color pen17 Oct 2023US 11,787,222 B1Hainan Xingye Investment Co., Ltd.
- Angle-adjustable, gravity flow ink refill and pen19 Mar 2019US 10,232,662 B2
- Roller-ball paint marker7 Aug 2018US 10,040,312 B2Crayola LLC
- Writing implement with pivoting roller30 Aug 2011US 8,007,195 B2Societe BIC
- Writing instrument and writing part replacement unit25 Dec 2025US 2025/0388041 A1Mitsubishi Pencil Company, Limited
- Pocket size pen2 Nov 2023US 2023/0347681 A1
- Water-based ink composition with color-changing by evaporation14 Sep 2023US 2023/0287227 A1Societe BIC
- Compact system to mix and create color materials12 Sep 2019US 2019/0275827 A1
- Input system20 Jun 2019US 2019/0187824 A1Staedtler Mars GmbH & Co. KG
Most cited
By later US patents
- Liquid applicator46US 5,709,492 ASakura Color Products Corporation · 1998
- Coloring device9US 5,685,224 ABinney & Smith Inc. · 1997
- Fountain type applicator for ink or the like and cartridge therefor8US 4,659,243 A1987
- Marking apparatus8US 4,669,905 A1987
- Pen tip structure8US 4,842,433 ATeibow Company Limited · 1989