B43K 8/024
With writing-points comprising felt
Official title: {with writing-points comprising felt}
B43K8/024 (With writing-points comprising felt) appears on 70 US grants and 63 published applications in this corpus.
Search patents in B43K- Granted patents
- 70
- Published applications
- 63
- Assignees
- 31
- Inventors
- 138
- Latest grant
- 18 Mar 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 1 | 0 |
| 1981 | 0 | 0 |
| 1982 | 1 | 0 |
| 1983 | 2 | 0 |
| 1984 | 1 | 0 |
| 1985 | 5 | 0 |
| 1986 | 1 | 0 |
| 1987 | 2 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 1 | 0 |
| 1991 | 0 | 0 |
| 1992 | 1 | 0 |
| 1993 | 0 | 0 |
| 1994 | 1 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 1 | 0 |
| 1998 | 0 | 0 |
| 1999 | 1 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 1 |
| 2003 | 1 | 0 |
| 2004 | 0 | 4 |
| 2005 | 3 | 1 |
| 2006 | 4 | 2 |
| 2007 | 3 | 3 |
| 2008 | 0 | 0 |
| 2009 | 0 | 1 |
| 2010 | 1 | 3 |
| 2011 | 1 | 1 |
| 2012 | 1 | 1 |
| 2013 | 0 | 0 |
| 2014 | 1 | 1 |
| 2015 | 0 | 5 |
| 2016 | 4 | 6 |
| 2017 | 4 | 5 |
| 2018 | 2 | 4 |
| 2019 | 6 | 0 |
| 2020 | 3 | 4 |
| 2021 | 2 | 3 |
| 2022 | 3 | 7 |
| 2023 | 4 | 4 |
| 2024 | 5 | 2 |
| 2025 | 2 | 4 |
| 2026 | 0 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
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- Peelable ink composition for porous substrates1 Oct 2024US 12,104,066 B2Societe BIC
- System for refilling of used markers23 Apr 2024US 11,964,508 B2
- Nib for writing felt pen12 Mar 2024US 11,926,171 B2Societe BIC
- Board game mechanic using dry erase markers to denote player actions8 Jan 2026US 2026/0007950 A1
- Surgical skin marker4 Sep 2025US 2025/0275828 A1DaVinci Plastic Surgery, PC
- Wax-based dry erase ink20 Mar 2025US 2025/0092273 A1Crayola LLC
- Surgical skin marker2 Jan 2025US 2025/0000606 A1DaVinci Plastic Surgery, PC
- Aqueous ink composition for writing instrument, and writing instrument2 Jan 2025US 2025/0002736 A1Mitsubishi Pencil Company, Limited
Most cited
By later US patents
- Ink and eraser of the ink89US 4,557,618 APentel Kabushiki Kaisha · 1985
- Spraying apparatus59US 4,549,243 AImperial Chemical Industries PLC · 1985
- Felt pen having two end caps52US 4,509,875 AColleen Pencil Co., Ltd. · 1985
- Marker with three phase ink circuit40US 4,017,871 AGraphic Controls Corporation · 1977
- Retractable marker pen and inks therefor32US 5,174,814 ADennison Manufacturing Company · 1992