B43K 8/16
Pens with writing-points other than nibs or balls: with tubular writing-points comprising
Official title: with tubular writing-points comprising a movable cleaning element
B43K8/16 (Pens with writing-points other than nibs or balls: with tubular writing-points comprising) appears on 66 US grants and 26 published applications in this corpus.
Search patents in B43K- Granted patents
- 66
- Published applications
- 26
- Assignees
- 33
- Inventors
- 125
- Latest grant
- 15 Apr 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 1 | 0 |
| 1978 | 3 | 0 |
| 1979 | 2 | 0 |
| 1980 | 5 | 0 |
| 1981 | 1 | 0 |
| 1982 | 2 | 0 |
| 1983 | 2 | 0 |
| 1984 | 1 | 0 |
| 1985 | 2 | 0 |
| 1986 | 4 | 0 |
| 1987 | 2 | 0 |
| 1988 | 4 | 0 |
| 1989 | 0 | 0 |
| 1990 | 3 | 0 |
| 1991 | 6 | 0 |
| 1992 | 1 | 0 |
| 1993 | 0 | 0 |
| 1994 | 2 | 0 |
| 1995 | 5 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 1 | 0 |
| 1999 | 1 | 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 | 1 |
| 2019 | 1 | 5 |
| 2020 | 1 | 1 |
| 2021 | 2 | 2 |
| 2022 | 1 | 2 |
| 2023 | 1 | 2 |
| 2024 | 1 | 3 |
| 2025 | 3 | 4 |
| 2026 | 0 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Liquid storage member for coating tools15 Apr 2025US 12,275,215 B2Mitsubishi Pencil Company, Limited
- Biodegradable marker pen4 Feb 2025US 12,214,617 B2Sunny Pro Co., Ltd.
- Fiber-bundled part for writing instruments, and pen tip and writing instrument using the fiber-bundled part7 Jan 2025US 12,187,068 B2Mitsubishi Pencil Company, Limited
- Heterogeneous fiber fluid reservoirs9 Jan 2024US 11,865,857 B2Porex Technologies Corp.
- Liquid storage member for coating tools10 Oct 2023US 11,780,258 B2Mitsubishi Pencil Company, Limited
- Plug structure, liquid cartridge, and pen30 Apr 2026US 2026/0116118 A1Lion Pencil Co., Ltd.
- Attachment structure in writing instrument, writing instrument, and soft member30 Oct 2025US 2025/0332858 A1KABUSHIKI KAISHA PILOT CORPORATION (also trading as PILOT CORPORATION)
- Sharp type paint marker pen2 Oct 2025US 2025/0303778 A1Mungyo Ons Corporation
- Writing implement refill and method of engraving writing implement refill10 Apr 2025US 2025/0115072 A1Mitsubishi Pencil Company, Limited
- Writing implement30 Jan 2025US 2025/0033402 A1KABUSHIKI KAISHA PILOT CORPORATION (also trading as PILOT CORPORATION)
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
- Disposable inker cartridge and holder therefor22US 4,400,708 A1983