B43L 19/0037
Eraser cleaners
Official title: {Eraser cleaners}
B43L19/0037 (Eraser cleaners) appears on 4 US grants and 6 published applications in this corpus.
Search patents in B43L- Granted patents
- 4
- Published applications
- 6
- Assignees
- 2
- Inventors
- 15
- Latest grant
- 9 Apr 2024
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1998 | 1 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 1 |
| 2005 | 1 | 1 |
| 2006 | 0 | 0 |
| 2007 | 0 | 2 |
| 2008 | 0 | 0 |
| 2009 | 0 | 1 |
| 2010 | 0 | 0 |
| 2011 | 1 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 0 |
| 2014 | 0 | 0 |
| 2015 | 0 | 0 |
| 2016 | 0 | 0 |
| 2017 | 0 | 0 |
| 2018 | 0 | 0 |
| 2019 | 0 | 0 |
| 2020 | 0 | 0 |
| 2021 | 0 | 0 |
| 2022 | 0 | 0 |
| 2023 | 0 | 0 |
| 2024 | 1 | 1 |
By publication year. Applications have been published since 2001.
Recent patents
- Blackboard eraser cleaner2 May 2024US 2024/0140131 A1Zhejiang University
- Retractable eraser with bristles12 Mar 2009US 2009/0064453 A1Acme United Corporation
- Chalk and dry marker eraser roller11 Oct 2007US 2007/0234498 A1
- Vacuum board eraser12 Jul 2007US 2007/0157423 A1
- Dustless eraser for blackboards27 Jan 2005US 2005/0015923 A1
Most cited
By later US patents