B43K 3/04
Nib holders: with retractable nibs
Official title: with retractable nibs (mechanisms for retracting or locking nibs B43K24/00)
B43K3/04 (Nib holders: with retractable nibs) appears on 4 US grants and 6 published applications in this corpus.
Search patents in B43K- Granted patents
- 4
- Published applications
- 6
- Assignees
- 5
- Inventors
- 10
- Latest grant
- 10 Jun 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 2018 | 0 | 1 |
| 2019 | 0 | 0 |
| 2020 | 0 | 1 |
| 2021 | 0 | 0 |
| 2022 | 2 | 1 |
| 2023 | 0 | 1 |
| 2024 | 1 | 0 |
| 2025 | 1 | 2 |
By publication year.
Recent patents
- Reusable marker with self-replacing nib10 Jun 2025US 12,325,256 B1
- Knock-type writing instrument10 Dec 2024US 12,162,305 B2Mitsubishi Pencil Company, Limited
- Writing implement18 Oct 2022US 11,472,221 B2Mitsubishi Pencil Company, Limited
- Projectable and retractable writing tool and multi-tip writing tool8 Mar 2022US 11,267,278 B2Kabushiki Kaisha Pilot Corporation
- Multi-point writing instruments13 Nov 2025US 2025/0346061 A1ZuMedia Inc.
- Reusable Marker with Self-Replacing Nib12 Jun 2025US 2025/0187363 A1
- Knock-type writing instrument2 Nov 2023US 2023/0347683 A1Mitsubishi Pencil Company, Limited
- Writing implement23 Jun 2022US 2022/0194120 A1Mitsubishi Pencil Company, Limited
- Projectable and retractable writing tool and multi-tip writing tool22 Oct 2020US 2020/0331285 A1KABUSHIKI KAISHA PILOT CORPORATION (also trading as PILOT CORPORATION)
Most cited
By later US patents
No patent in this class has been cited by a later US patent yet.