B43K 7/06
Reservoirs with ink-level inspection means
B43K7/06 (Reservoirs with ink-level inspection means) appears on 16 US grants and 17 published applications in this corpus.
Search patents in B43K- Granted patents
- 16
- Published applications
- 17
- Assignees
- 11
- Inventors
- 50
- Latest grant
- 25 Feb 2020
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1989 | 1 | 0 |
| 1990 | 1 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 1 | 0 |
| 2001 | 0 | 0 |
| 2002 | 1 | 1 |
| 2003 | 0 | 0 |
| 2004 | 1 | 2 |
| 2005 | 0 | 1 |
| 2006 | 2 | 1 |
| 2007 | 0 | 2 |
| 2008 | 1 | 0 |
| 2009 | 1 | 0 |
| 2010 | 0 | 2 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 1 | 1 |
| 2014 | 1 | 1 |
| 2015 | 1 | 2 |
| 2016 | 2 | 1 |
| 2017 | 0 | 0 |
| 2018 | 1 | 1 |
| 2019 | 0 | 1 |
| 2020 | 1 | 0 |
| 2021 | 0 | 0 |
| 2022 | 0 | 0 |
| 2023 | 0 | 0 |
| 2024 | 0 | 0 |
| 2025 | 0 | 1 |
By publication year. Applications have been published since 2001.
Recent patents
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- Writing tool refill and writing tool using same23 Aug 2018US 2018/0236807 A1Mitsubishi Pencil Company, Limited
- Cosmetic applicator13 Oct 2016US 2016/0295990 A1Mitsubishi Pencil Company, Limited
- Writing instrument22 Oct 2015US 2015/0298488 A1Kabushiki Kaisha Pilot Corporation
Most cited
By later US patents
- Fingertip writing instrument14US 7,476,043 B12009
- Writing implement12US 7,070,352 B2Mitsubishi Pencil Company, Limited · 2006
- Ecologically beneficial refill for a pen including a level indicator and writeout scale9US 6,068,422 AEversharp Pen Company · 2000
- Device for preventing drying of ink in writing instrument7US 4,911,571 ASakura Color Products Corporation · 1990
- Liquid ink writing pen with visible tip7US 6,464,420 B2Chartpak, Inc. · 2002