B43K 8/028
Movable closure or gate
Official title: {Movable closure or gate}
B43K8/028 (Movable closure or gate) appears on 82 US grants and 81 published applications in this corpus.
Search patents in B43K- Granted patents
- 82
- Published applications
- 81
- Assignees
- 37
- Inventors
- 130
- Latest grant
- 25 Nov 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 1 | 0 |
| 1981 | 1 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 2 | 0 |
| 1985 | 3 | 0 |
| 1986 | 3 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 2 | 0 |
| 1991 | 1 | 0 |
| 1992 | 1 | 0 |
| 1993 | 1 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 1 | 0 |
| 1999 | 2 | 0 |
| 2000 | 1 | 0 |
| 2001 | 2 | 0 |
| 2002 | 1 | 0 |
| 2003 | 0 | 1 |
| 2004 | 1 | 4 |
| 2005 | 3 | 7 |
| 2006 | 4 | 8 |
| 2007 | 3 | 7 |
| 2008 | 8 | 8 |
| 2009 | 2 | 5 |
| 2010 | 2 | 4 |
| 2011 | 2 | 5 |
| 2012 | 6 | 4 |
| 2013 | 4 | 2 |
| 2014 | 2 | 1 |
| 2015 | 0 | 2 |
| 2016 | 2 | 1 |
| 2017 | 1 | 1 |
| 2018 | 1 | 4 |
| 2019 | 4 | 2 |
| 2020 | 1 | 1 |
| 2021 | 1 | 1 |
| 2022 | 0 | 2 |
| 2023 | 4 | 3 |
| 2024 | 2 | 3 |
| 2025 | 3 | 2 |
| 2026 | 0 | 3 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Porous cap felt pen25 Nov 2025US 12,479,232 B2BIC Violex Single Member S.A.
- Writing instruments3 Jun 2025US 12,319,083 B2BIC Violex Single Member S.A.
- Writing instruments11 Mar 2025US 12,246,554 B2BIC Violex Single Member S.A.
- Self-healing seal assembly for a writing instrument10 Dec 2024US 12,162,306 B2BIC Violex Single Member S.A.
- Self-healing seal for a writing instrument11 Jun 2024US 12,005,730 B2Societe BIC
- Writing instrument23 Jul 2026US 2026/0208523 A1KABUSHIKI KAISHA PILOT CORPORATION (also trading as PILOT CORPORATION)
- Soft elastomeric seal for a writing instrument4 Jun 2026US 2026/0152022 A1BIC Violex Single Member S.A.
- Writing implements7 May 2026US 2026/0124850 A1Societe BIC
- Writing instrument and writing part replacement unit25 Dec 2025US 2025/0388041 A1Mitsubishi Pencil Company, Limited
- Porous cap felt pen30 Jan 2025US 2025/0033401 A1BIC Violex Single Member S.A.
Most cited
By later US patents
- Retractable writing utensil40US 7,350,996 B2Sanford, L. P. · 2008
- Capless retractable marking pen29US 4,711,592 A1987
- Self-sealing retractable writing instrument29US 7,059,796 B2Avery Dennison Corporation · 2006
- Retractable felt-tipped pen28US 6,213,661 B12001
- Retractable capless marking pen26US 4,540,300 AKotobuki & Co., Ltd. · 1985