B29L 2031/725
Drawing or writing equipment
Official title: {Drawing or writing equipment}
B29L2031/725 (Drawing or writing equipment) appears on 46 US grants and 42 published applications in this corpus.
Search patents in B29L- Granted patents
- 46
- Published applications
- 42
- Assignees
- 37
- Inventors
- 120
- Latest grant
- 4 Feb 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 2 | 0 |
| 1978 | 1 | 0 |
| 1979 | 1 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 1 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 1 | 0 |
| 1992 | 0 | 0 |
| 1993 | 1 | 0 |
| 1994 | 1 | 0 |
| 1995 | 0 | 0 |
| 1996 | 1 | 0 |
| 1997 | 0 | 0 |
| 1998 | 1 | 0 |
| 1999 | 0 | 0 |
| 2000 | 2 | 0 |
| 2001 | 1 | 3 |
| 2002 | 2 | 1 |
| 2003 | 0 | 0 |
| 2004 | 1 | 2 |
| 2005 | 1 | 3 |
| 2006 | 2 | 1 |
| 2007 | 2 | 2 |
| 2008 | 1 | 0 |
| 2009 | 0 | 2 |
| 2010 | 1 | 1 |
| 2011 | 2 | 1 |
| 2012 | 0 | 1 |
| 2013 | 3 | 0 |
| 2014 | 1 | 1 |
| 2015 | 0 | 3 |
| 2016 | 0 | 3 |
| 2017 | 1 | 1 |
| 2018 | 5 | 2 |
| 2019 | 1 | 3 |
| 2020 | 3 | 3 |
| 2021 | 1 | 0 |
| 2022 | 3 | 4 |
| 2023 | 0 | 1 |
| 2024 | 2 | 2 |
| 2025 | 1 | 1 |
| 2026 | 0 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Biodegradable marker pen4 Feb 2025US 12,214,617 B2Sunny Pro Co., Ltd.
- Lead casing for pencil, and pencil thereof for writing, drawing, marking, plotting, and coloring27 Aug 2024US 12,070,966 B2Societe BIC
- Method of making pen body resin rods11 Jun 2024US 12,005,614 B2
- Lead casing for pencil, and pencil thereof for writing, drawing, marking, plotting, and coloring13 Dec 2022US 11,524,518 B2Societe BIC
- Lead casing for pencil, and pencil thereof for writing, drawing, marking, plotting, and coloring1 Nov 2022US 11,485,165 B2Societe BIC
- Composite material, stylus tip, stylus tip assembly, stylus, and forming method30 Jul 2026US 2026/0219745 A1Huawei Technologies Co., Ltd.
- Silicone pencil preparation device and method24 Jul 2025US 2025/0236056 A1Binzhou Psl Pencil Co., Ltd.
- Sintered porous polypropylene media and applications19 Dec 2024US 2024/0417497 A1Porex Corporation
- Biodegradable marker pen11 Jul 2024US 2024/0227428 A1Sunny Pro Co., Ltd.
- Water-Soluble Coloring Compositions Comprising Alcohol Alkoxylates with 40 to 160 Ethoxy Units Derived from Primary Alcohols Having a Chain Length Between 20 and 30 Carbon Atoms20 Apr 2023US 2023/0117983 A1
Most cited
By later US patents
- Writing instrument with enhanced tactile control and gripping comfort and method of making same52US 6,062,753 APentech International Inc. · 2000
- Writing instrument with finger gripping device21US 6,379,065 B2BIC Corporation · 2002
- Writing instrument with finger gripping device19US 6,164,855 ABIC Corporation · 2000
- Flexible flat ballpoint pen18US 4,732,504 ADesign Machine S.N.C. di Adalberto Brunetti e Danilo Telli · 1988
- Protective cap for a writing, drawing or applicator implement16US 5,051,015 ASchwan-Stabilo Schwanhausser GmbH & Co. · 1991