B43K 5/02
Ink reservoirs
B43K5/02 (Ink reservoirs) appears on 190 US grants and 161 published applications in this corpus.
Search patents in B43K- Granted patents
- 190
- Published applications
- 161
- Assignees
- 96
- Inventors
- 365
- Latest grant
- 1 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 2 | 0 |
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 1 | 0 |
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 1 | 0 |
| 1984 | 2 | 0 |
| 1985 | 1 | 0 |
| 1986 | 4 | 0 |
| 1987 | 2 | 0 |
| 1988 | 1 | 0 |
| 1989 | 1 | 0 |
| 1990 | 3 | 0 |
| 1991 | 6 | 0 |
| 1992 | 5 | 0 |
| 1993 | 3 | 0 |
| 1994 | 1 | 0 |
| 1995 | 2 | 0 |
| 1996 | 2 | 0 |
| 1997 | 0 | 0 |
| 1998 | 1 | 0 |
| 1999 | 6 | 0 |
| 2000 | 4 | 0 |
| 2001 | 9 | 2 |
| 2002 | 8 | 7 |
| 2003 | 2 | 4 |
| 2004 | 6 | 5 |
| 2005 | 2 | 6 |
| 2006 | 5 | 4 |
| 2007 | 3 | 3 |
| 2008 | 1 | 6 |
| 2009 | 4 | 5 |
| 2010 | 3 | 6 |
| 2011 | 4 | 2 |
| 2012 | 3 | 2 |
| 2013 | 5 | 6 |
| 2014 | 1 | 5 |
| 2015 | 6 | 7 |
| 2016 | 6 | 5 |
| 2017 | 2 | 6 |
| 2018 | 7 | 4 |
| 2019 | 9 | 17 |
| 2020 | 9 | 8 |
| 2021 | 7 | 10 |
| 2022 | 9 | 9 |
| 2023 | 8 | 11 |
| 2024 | 8 | 6 |
| 2025 | 10 | 10 |
| 2026 | 3 | 5 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Sharp type paint marker pen1 Sep 2026US 12,722,416 B2Mungyo Ons Corporation
- Replaceable cartridge for a writing instrument and method thereof12 May 2026US 12,623,482 B2Societe BIC
- Drawing material container cartridge and drawing material container set24 Mar 2026US 12,583,248 B2Tokiwa Corporation
- Output device for uniformly mixed liquid and method for making and using the same5 Aug 2025US 12,377,677 B2Beijing Wenhaiyang Industry & Trading Co., Ltd.
- Writing instrument22 Jul 2025US 12,365,197 B2C. Josef Lamy GmbH
- Controllable direct liquid tool pen30 Jul 2026US 2026/0217052 A1Jiangxi Yihuale Pen Industry Co., Ltd
- Applicator16 Jul 2026US 2026/0199932 A1Mitsubishi Pencil Company, Limited
- Smart pen2 Jul 2026US 2026/0184101 A1The Codder Co., Ltd.
- Writing implements7 May 2026US 2026/0124850 A1Societe BIC
- Plug structure, liquid cartridge, and pen30 Apr 2026US 2026/0116118 A1Lion Pencil Co., Ltd.
Most cited
By later US patents
- Medical article having fluid control film323US 6,420,622 B13M Innovative Properties Company · 2002
- Drug delivery dressing having fluid control film124US 6,867,342 B23M Innovative Properties Company · 2005
- Multicolor writing and painting instruments with multiple, bundled, hard, wear-resistant nibs106US 8,403,577 B2University of Southern California · 2013
- Hand-held ink jet with insertable cartridges52US 4,758,849 AEastman Kodak Company · 1988
- Marking device for electronic presentation board49US 5,866,856 AElectronics for Imaging, Inc. · 1999