B43K 8/18
Arrangements for feeding the ink to the writing-points
B43K8/18 (Arrangements for feeding the ink to the writing-points) appears on 37 US grants and 13 published applications in this corpus.
Search patents in B43K- Granted patents
- 37
- Published applications
- 13
- Assignees
- 23
- Inventors
- 61
- Latest grant
- 20 Dec 2022
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 0 | 0 |
| 1978 | 1 | 0 |
| 1979 | 1 | 0 |
| 1980 | 2 | 0 |
| 1981 | 0 | 0 |
| 1982 | 1 | 0 |
| 1983 | 1 | 0 |
| 1984 | 1 | 0 |
| 1985 | 2 | 0 |
| 1986 | 2 | 0 |
| 1987 | 1 | 0 |
| 1988 | 2 | 0 |
| 1989 | 0 | 0 |
| 1990 | 2 | 0 |
| 1991 | 2 | 0 |
| 1992 | 1 | 0 |
| 1993 | 0 | 0 |
| 1994 | 2 | 0 |
| 1995 | 4 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 1 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 1 | 1 |
| 2003 | 1 | 1 |
| 2004 | 1 | 1 |
| 2005 | 0 | 0 |
| 2006 | 1 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 1 |
| 2014 | 1 | 0 |
| 2015 | 0 | 0 |
| 2016 | 0 | 1 |
| 2017 | 0 | 0 |
| 2018 | 1 | 0 |
| 2019 | 0 | 3 |
| 2020 | 1 | 1 |
| 2021 | 1 | 1 |
| 2022 | 1 | 1 |
| 2023 | 0 | 1 |
| 2024 | 0 | 0 |
| 2025 | 0 | 1 |
By publication year. Applications have been published since 2001.
Recent patents
- Pen with multiple colors20 Dec 2022US 11,529,824 B2Societe BIC
- Free ink writing instrument with microfluidic valve14 Sep 2021US 11,117,415 B2Societe BIC
- Writing instrument having an elongated tip with a curvature system18 Aug 2020US 10,744,813 B2
- Liquid applying tool9 Jan 2018US 9,862,225 B2Kotobuki & Co., Ltd.
- Pen with pressurizing mechanism to pressurize ink refill12 Aug 2014US 8,801,313 B2Micro Co., Ltd.
- Writing implement30 Jan 2025US 2025/0033402 A1KABUSHIKI KAISHA PILOT CORPORATION (also trading as PILOT CORPORATION)
- Water-based ink composition for writing instruments, writing instrument, and cartridge ink for writing instruments5 Oct 2023US 2023/0312967 A1KABUSHIKI KAISHA PILOT CORPORATION (also trading as PILOT CORPORATION)
- Writing instruments30 Jun 2022US 2022/0203750 A1Societe BIC
- Pen with multiple colors16 Dec 2021US 2021/0387470 A1Societe BIC
- Free ink writing instrument with microfluidic valve2 Jul 2020US 2020/0207144 A1Societe BIC
Most cited
By later US patents
- Writing instrument having plural nibs with one being retractable50US 4,580,918 AThe Gillette Company · 1986
- Device for applying writing, drawing, printing and painting fluids onto a surface33US 5,352,052 ADataprint Datendrucksysteme R. Kaufmann KG · 1994
- Unitary body plotter pen33US 5,420,615 AKoh-I-Noor Inc. · 1995
- Pressure balanced stylographic pen28US 4,753,546 AKoh-I-Noor Rapidograph, Inc. · 1988
- Ink compensating chamber for scriber17US 4,207,012 AKoh-I-Noor Rapidograph, Inc. · 1980