B43K 19/003
Chalks
Official title: {Chalks}
B43K19/003 (Chalks) appears on 19 US grants and 32 published applications in this corpus.
Search patents in B43K- Granted patents
- 19
- Published applications
- 32
- Assignees
- 12
- Inventors
- 57
- Latest grant
- 16 Jul 2024
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 2005 | 0 | 1 |
| 2006 | 0 | 1 |
| 2007 | 0 | 0 |
| 2008 | 0 | 1 |
| 2009 | 0 | 1 |
| 2010 | 1 | 1 |
| 2011 | 0 | 1 |
| 2012 | 1 | 0 |
| 2013 | 1 | 2 |
| 2014 | 0 | 2 |
| 2015 | 0 | 4 |
| 2016 | 1 | 4 |
| 2017 | 3 | 3 |
| 2018 | 2 | 1 |
| 2019 | 2 | 4 |
| 2020 | 3 | 1 |
| 2021 | 2 | 2 |
| 2022 | 0 | 0 |
| 2023 | 1 | 0 |
| 2024 | 2 | 0 |
| 2025 | 0 | 3 |
By publication year.
Recent patents
- Marking device for a personal mobility vehicle16 Jul 2024US 12,036,813 B2Razor USA LLC
- Core or crayon for writing and/or coloring11 Jun 2024US 12,006,443 B2Faber-Castell AG
- Diester of bisphenol fluorene compounds and thermochromic pigment compositions comprising the same14 Nov 2023US 11,814,528 B2Societe BIC
- Releasing impurities from a calcium-based mineral27 Apr 2021US 10,988,387 B2Carbon Cycle Limited
- Three-way marker for sewing23 Feb 2021US 10,926,575 B2Dpg USA Inc.
- 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
- Lead or chalk for writing, painting and/or cosmetic purposes, pencil with a lead and method for producing a lead or chalk20 Feb 2025US 2025/0059396 A1
- Marking device for a personal mobility vehicle16 Jan 2025US 2025/0019025 A1Razor USA LLC
- Diester of bisphenol fluorene compounds and thermochromic pigment compositions comprising the same25 Nov 2021US 2021/0363371 A1Societe BIC
- Core or crayon for writing and/or coloring6 May 2021US 2021/0130638 A1Faber-Castell AG
Most cited
By later US patents
- Writing utensil kit and method of use7US 8,303,202 B12012
- Offset pen structure for rapid assembling5US 7,665,921 B22010
- Marking device for a personal mobility vehicle4US 8,356,840 B2Razor USA LLC · 2013
- Roller-ball paint marker3US 10,040,312 B2Crayola LLC · 2018
- Magnetized writing and amusement device3US 9,676,225 B22017