B43L 19/0025
Eraser or rubber material
Official title: {Eraser or rubber material, e.g. comprising hard particles}
B43L19/0025 (Eraser or rubber material) appears on 41 US grants and 47 published applications in this corpus.
Search patents in B43L- Granted patents
- 41
- Published applications
- 47
- Assignees
- 28
- Inventors
- 84
- Latest grant
- 15 Apr 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1982 | 2 | 0 |
| 1983 | 2 | 0 |
| 1984 | 1 | 0 |
| 1985 | 1 | 0 |
| 1986 | 1 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 1 | 0 |
| 1995 | 0 | 0 |
| 1996 | 1 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 1 |
| 2004 | 0 | 0 |
| 2005 | 0 | 2 |
| 2006 | 1 | 4 |
| 2007 | 0 | 4 |
| 2008 | 3 | 3 |
| 2009 | 0 | 5 |
| 2010 | 2 | 1 |
| 2011 | 2 | 2 |
| 2012 | 3 | 1 |
| 2013 | 1 | 1 |
| 2014 | 0 | 4 |
| 2015 | 1 | 2 |
| 2016 | 1 | 1 |
| 2017 | 3 | 0 |
| 2018 | 1 | 0 |
| 2019 | 0 | 2 |
| 2020 | 0 | 5 |
| 2021 | 2 | 2 |
| 2022 | 1 | 1 |
| 2023 | 4 | 1 |
| 2024 | 4 | 4 |
| 2025 | 2 | 0 |
| 2026 | 0 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Thermochromic writing instrument15 Apr 2025US 12,275,269 B2Kabushiki Kaisha Pilot Corporation
- Friction body4 Mar 2025US 12,240,266 B2Societe BIC
- Writing instrument for erasing handwritten content12 Nov 2024US 12,138,951 B1Crown Ballpen Co., Ltd.
- Color-change and erasable writing compositions, writing instruments, and systems22 Oct 2024US 12,122,930 B2Crayola LLC
- Eraser1 Oct 2024US 12,103,329 B2Staedtler SE
- Eraser coated with polysaccharide18 Jun 2026US 2026/0166912 A1Societe BIC
- Eco-friendly eraser using epdm rubber21 Nov 2024US 2024/0384084 A1Yeungnam University Industry-Academic Cooperation Foundation
- Color-change and erasable writing compositions, writing instruments, and systems28 Mar 2024US 2024/0101853 A1Crayola LLC
- Friction body29 Feb 2024US 2024/0066911 A1Societe BIC
- Friction body with anisotropic thermal conductivity15 Feb 2024US 2024/0051331 A1BIC Violex Single Member S.A.
Most cited
By later US patents
- Magnetic eraser dust collector16US 4,554,703 ATaiyo Yuden Co., Ltd. · 1985
- Elastomer composition, method for producing the same, and eraser using the same12US 7,732,523 B2Seed Co., Ltd. · 2010
- Method of fabricating an eraser8US 4,374,225 AMitsubishi Pencil Company, Limited · 1983
- Writing utensil kit and method of use7US 8,303,202 B12012
- Friction body, writing instrument and writing instrument set7US 9,592,702 B2Kabushiki Kaisha Pilot Corporation · 2017