F21V 37/0058
Reflectors, cover glasses, chimneys
Official title: {Reflectors, cover glasses, chimneys; Smoke-removing devices; Preheaters}
F21V37/0058 (Reflectors, cover glasses, chimneys) appears on 8 US grants and 10 published applications in this corpus.
Search patents in F21V- Granted patents
- 8
- Published applications
- 10
- Assignees
- 4
- Inventors
- 11
- Latest grant
- 26 Dec 2023
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 2003 | 1 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 1 |
| 2006 | 0 | 1 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 1 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 2 |
| 2014 | 0 | 0 |
| 2015 | 1 | 0 |
| 2016 | 1 | 2 |
| 2017 | 0 | 1 |
| 2018 | 0 | 0 |
| 2019 | 2 | 0 |
| 2020 | 1 | 1 |
| 2021 | 1 | 0 |
| 2022 | 0 | 1 |
| 2023 | 1 | 0 |
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Subgroups
Granted patents
Recent patents
- Control means for vortex flame device26 Dec 2023US 11,852,319 B2
- Combustion device having double-layer structure28 Dec 2021US 11,209,160 B2Pro-Iroda Industries, Inc.
- System for creating movement using a heat source and controlled by surface tension effects5 May 2020US 10,641,479 B2
- Heat isolating torch26 Mar 2019US 10,240,778 B2Lamplight Farms Incorporated
- Heat isolating torch12 Mar 2019US 10,228,127 B2Lamplight Farms Incorporated
- Control Means for Vortex Flame Device1 Sep 2022US 2022/0275927 A1
- Combustion device having double-layer structure27 Aug 2020US 2020/0271313 A1Pro-Iroda Industries, Inc.
- System for creating movement using a heat source and controlled by surface tension effects21 Dec 2017US 2017/0363281 A1
- Heat isolating torch3 Nov 2016US 2016/0320053 A1Lamplight Farms Incorporated
- Heat isolating torch14 Jan 2016US 2016/0010854 A1Lamplight Farms Incorporated
Most cited
By later US patents