B43K 21/00
Propelling pencils
Official title: Propelling pencils (projecting mechanisms for writing units B43K24/00; multiple-point writing implements B43K27/00)
B43K21/00 (Propelling pencils) appears on 438 US grants and 275 published applications in this corpus.
Search patents in B43K- Granted patents
- 438
- Published applications
- 275
- Assignees
- 141
- Inventors
- 522
- Latest grant
- 22 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 5 | 0 |
| 1977 | 3 | 0 |
| 1978 | 2 | 0 |
| 1979 | 10 | 0 |
| 1980 | 10 | 0 |
| 1981 | 8 | 0 |
| 1982 | 12 | 0 |
| 1983 | 6 | 0 |
| 1984 | 5 | 0 |
| 1985 | 10 | 0 |
| 1986 | 11 | 0 |
| 1987 | 12 | 0 |
| 1988 | 4 | 0 |
| 1989 | 12 | 0 |
| 1990 | 16 | 0 |
| 1991 | 13 | 0 |
| 1992 | 8 | 0 |
| 1993 | 6 | 0 |
| 1994 | 6 | 0 |
| 1995 | 3 | 0 |
| 1996 | 6 | 0 |
| 1997 | 7 | 0 |
| 1998 | 9 | 0 |
| 1999 | 11 | 0 |
| 2000 | 14 | 0 |
| 2001 | 15 | 7 |
| 2002 | 8 | 10 |
| 2003 | 9 | 6 |
| 2004 | 10 | 16 |
| 2005 | 10 | 14 |
| 2006 | 13 | 15 |
| 2007 | 10 | 22 |
| 2008 | 9 | 13 |
| 2009 | 5 | 11 |
| 2010 | 18 | 15 |
| 2011 | 5 | 16 |
| 2012 | 7 | 8 |
| 2013 | 12 | 8 |
| 2014 | 8 | 6 |
| 2015 | 6 | 17 |
| 2016 | 10 | 8 |
| 2017 | 12 | 6 |
| 2018 | 6 | 13 |
| 2019 | 13 | 18 |
| 2020 | 11 | 14 |
| 2021 | 9 | 6 |
| 2022 | 7 | 9 |
| 2023 | 4 | 2 |
| 2024 | 6 | 8 |
| 2025 | 4 | 5 |
| 2026 | 2 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Marking tool22 Sep 2026US 12,741,479 B2Milwaukee Electric Tool Corporation
- Replaceable cartridge for a writing instrument and method thereof12 May 2026US 12,623,482 B2Societe BIC
- Press-type makeup pen30 Dec 2025US 12,507,785 B2Shya Hsin Packaging Industry (China) Co., Ltd.
- Cosmetic applicator or component thereof with special thread spindle drive23 Dec 2025US 12,501,987 B2A. W. Faber-Castell Cosmetics GmbH
- Apparatus for adjustably retaining an expendable medium for writing and/or drawing19 Aug 2025US 12,391,060 B1Crayola LLC
- Writing tool14 May 2026US 2026/0131592 A1KABUSHIKI KAISHA PILOT CORPORATION (also trading as PILOT CORPORATION)
- Mechanical pencil5 Feb 2026US 2026/0034828 A1Mitsubishi Pencil Company, Limited
- Active stylus pen14 Aug 2025US 2025/0256530 A1Zebra Co., Ltd.
- Press-type makeup pen7 Aug 2025US 2025/0248504 A1Shya Hsin Packaging Industry (China) Co., Ltd.
- Erasable, unburnt colored lead for writing, drawing and painting devices or erasable, unburnt colored chalk, writing, painting or drawing device comprising an erasable, unburnt colored lead and method for manufacturing an erasable, colored lead or chalk7 Aug 2025US 2025/0250455 A1
Most cited
By later US patents
- Ergonomic tool holder or writing tool with means to be molded to fit the user's hand46US 6,328,494 B1Pengineering, LLC · 2001
- Rodlike body feeding device41US 5,577,850 APentel Kabushiki Kaisha · 1996
- Writing instrument with ergonomic grip37US 5,988,909 A1999
- Applicator device for a stick of spreadable material34US 5,018,892 ASchwan-Stabilo Schwanhaeusser GmbH & Co. · 1991
- Adaptable pressuring writing instrument holder34US 5,626,430 A1997