B43K 8/146
Ink cartridges, ink reservoirs
Official title: {Ink cartridges, ink reservoirs}
B43K8/146 (Ink cartridges, ink reservoirs) appears on 10 US grants and 21 published applications in this corpus.
Search patents in B43K- Granted patents
- 10
- Published applications
- 21
- Assignees
- 15
- Inventors
- 44
- Latest grant
- 22 Jul 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 2002 | 0 | 1 |
| 2003 | 1 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 1 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 0 |
| 2014 | 0 | 0 |
| 2015 | 0 | 0 |
| 2016 | 0 | 1 |
| 2017 | 0 | 2 |
| 2018 | 0 | 0 |
| 2019 | 0 | 4 |
| 2020 | 1 | 0 |
| 2021 | 1 | 2 |
| 2022 | 0 | 2 |
| 2023 | 3 | 0 |
| 2024 | 1 | 4 |
| 2025 | 3 | 3 |
| 2026 | 0 | 1 |
By publication year. 2026 runs to 8 Oct.
Recent patents
- Writing instrument22 Jul 2025US 12,365,197 B2C. Josef Lamy GmbH
- Liquid storage member for coating tools15 Apr 2025US 12,275,215 B2Mitsubishi Pencil Company, Limited
- Variable color shade marker18 Mar 2025US 12,251,959 B2BIC Violex Single Member S.A.
- 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)
- Ink storage member for writing implements9 Oct 2025US 2025/0313034 A1Mitsubishi Pencil Company, Limited
- Writing implement refill and method of engraving writing implement refill10 Apr 2025US 2025/0115072 A1Mitsubishi Pencil Company, Limited
- Variable color shade marker12 Sep 2024US 2024/0300258 A1BIC Violex Single Member S.A.
Most cited
By later US patents