G03B 21/18
Fire preventing or extinguishing
G03B21/18 (Fire preventing or extinguishing) appears on 65 US grants and 73 published applications in this corpus.
Search patents in G03B- Granted patents
- 65
- Published applications
- 73
- Assignees
- 33
- Inventors
- 145
- Latest grant
- 5 May 2020
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 2001 | 2 | 0 |
| 2002 | 2 | 6 |
| 2003 | 6 | 3 |
| 2004 | 1 | 6 |
| 2005 | 5 | 18 |
| 2006 | 10 | 5 |
| 2007 | 3 | 11 |
| 2008 | 5 | 3 |
| 2009 | 3 | 1 |
| 2010 | 9 | 1 |
| 2011 | 2 | 3 |
| 2012 | 1 | 2 |
| 2013 | 0 | 1 |
| 2014 | 7 | 5 |
| 2015 | 4 | 4 |
| 2016 | 2 | 1 |
| 2017 | 2 | 1 |
| 2018 | 0 | 0 |
| 2019 | 0 | 1 |
| 2020 | 1 | 1 |
By publication year.
Recent patents
- Control apparatus, control method for same, projection device, and projection system5 May 2020US 10,642,142 B2Canon Kabushiki Kaisha
- Image forming apparatus and developing cartridge1 Aug 2017US 9,720,347 B2Brother Kogyo Kabushiki Kaisha
- Projector with reduced ghost image occurrence14 Feb 2017US 9,568,813 B2Samsung Electronics Co., Ltd.
- Image forming apparatus and developing cartridge6 Dec 2016US 9,513,595 B2Brother Kogyo Kabushiki Kaisha
- Projector29 Mar 2016US 9,298,074 B2Seiko Epson Corporation
- Illumination system, projection apparatus and illumination control method12 Mar 2020US 2020/0081332 A1Coretronic Corporation
- Control apparatus, control method for same, projection device, and projection system12 Sep 2019US 2019/0278164 A1Canon Kabushiki Kaisha
- Image Forming Apparatus and Developing Cartridge23 Mar 2017US 2017/0082943 A1Brother Kogyo Kabushiki Kaisha
- Image Forming Apparatus and Developing Cartridge14 Apr 2016US 2016/0103417 A1Brother Kogyo Kabushiki Kaisha
- Projector15 Oct 2015US 2015/0293431 A1Seiko Epson Corporation
Most cited
By later US patents
- Process cartridge, mountable to an image forming apparatus, having first contact portion to be guided by a guide when mounted and second contact portion to limit cartridge rotation or movement when mounted, and image forming apparatus mounting such a process cartridge165US 6,937,832 B2Canon Kabushiki Kaisha · 2005
- Developing cartridge for supplying power to a developer roller shaft when coupled to an image forming apparatus53US 7,693,442 B2Brother Kogyo Kabushiki Kaisha · 2010
- Image forming apparatus and developing cartridge50US 7,643,770 B2Brother Kogyo Kabushiki Kaisha · 2010
- Image forming apparatus and developing cartridge40US 7,693,443 B2Brother Kogyo Kabushiki Kaisha · 2010
- Image forming state adjusting system, exposure method and exposure apparatus, and program and information storage medium38US 7,230,682 B2Nikon Corporation · 2007