B43L 23/04
With cranked handles
Official title: with cranked handles
B43L23/04 (With cranked handles) appears on 11 US grants and 9 published applications in this corpus.
Search patents in B43L- Granted patents
- 11
- Published applications
- 9
- Assignees
- 12
- Inventors
- 24
- Latest grant
- 15 Mar 2022
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 4 | 0 |
| 1977 | 0 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 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 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 1 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 1 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 1 |
| 2012 | 0 | 0 |
| 2013 | 1 | 2 |
| 2014 | 0 | 1 |
| 2015 | 0 | 1 |
| 2016 | 1 | 0 |
| 2017 | 0 | 0 |
| 2018 | 0 | 0 |
| 2019 | 0 | 1 |
| 2020 | 0 | 0 |
| 2021 | 1 | 0 |
| 2022 | 1 | 0 |
| 2023 | 0 | 0 |
| 2024 | 0 | 0 |
| 2025 | 0 | 0 |
| 2026 | 0 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Pencil sharpener15 Mar 2022US 11,273,666 B1
- Pencil sharpener2 Feb 2021US 10,906,347 B2OSAKA CLIP co., LTD
- Adjustable pencil sharpener2 Feb 2016US 9,248,691 B2SDI Corporation
- Hand-cranked pencil sharpeners11 Jun 2013US 8,459,317 B2Yurisheng Electronic (Shenzhen) Co., Ltd
- Pencil sharpener1 Jan 2002US 6,334,475 B1
- Shaving compression mechanism of pencil sharpener, and pencil sharpener9 Jul 2026US 2026/0192592 A1Ningbo Tiantian Stationery Co., Ltd.
- Crayon cutter12 Mar 2026US 2026/0070369 A1Crayola LLC
- Pencil sharpener2 May 2019US 2019/0126664 A1OSAKA CLIP co., LTD
- Sharpener for marking instruments13 Aug 2015US 2015/0224816 A1Melissa & Doug, LLC
- Adjustable pencil sharpener2 Jan 2014US 2014/0000119 A1SDI Corporation
Most cited
By later US patents
- Sucking on device which is easily to be lifted but is not easily getting overturned26US 5,076,527 A1991
- Pencil sharpener14US 3,980,113 AHasbro Development Corporation · 1976
- Pencil sharpener12US 4,759,129 A1988
- Lead-pencil sharpener7US 3,998,253 A1976
- Hand-cranked pencil sharpeners6US 8,459,317 B2Yurisheng Electronic (Shenzhen) Co., Ltd · 2013