F23M 11/042
Viewing ports of windows
Official title: {Viewing ports of windows}
F23M11/042 (Viewing ports of windows) appears on 57 US grants and 50 published applications in this corpus.
Search patents in F23M- Granted patents
- 57
- Published applications
- 50
- Assignees
- 39
- Inventors
- 98
- Latest grant
- 6 Feb 2024
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 2 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 1 | 0 |
| 1981 | 1 | 0 |
| 1982 | 3 | 0 |
| 1983 | 1 | 0 |
| 1984 | 2 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 1 | 0 |
| 1995 | 0 | 0 |
| 1996 | 1 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 2 | 0 |
| 2001 | 0 | 0 |
| 2002 | 2 | 4 |
| 2003 | 4 | 15 |
| 2004 | 1 | 4 |
| 2005 | 11 | 1 |
| 2006 | 2 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 1 |
| 2009 | 1 | 2 |
| 2010 | 0 | 3 |
| 2011 | 1 | 0 |
| 2012 | 2 | 0 |
| 2013 | 1 | 1 |
| 2014 | 0 | 1 |
| 2015 | 3 | 4 |
| 2016 | 0 | 2 |
| 2017 | 2 | 1 |
| 2018 | 1 | 1 |
| 2019 | 1 | 2 |
| 2020 | 3 | 4 |
| 2021 | 3 | 2 |
| 2022 | 0 | 0 |
| 2023 | 3 | 2 |
| 2024 | 1 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Viewport for high temperature combustion zones6 Feb 2024US 11,892,164 B2HRST, Inc.
- Combustion systems with ease of serviceability19 Dec 2023US 11,846,449 B2Rheem Manufacturing Company
- Fresh air intake for low NOx emission furnace7 Nov 2023US 11,808,449 B2Lennox Industries Inc.
- Viewport for high temperature combustion zones14 Mar 2023US 11,603,992 B2HRST, Inc.
- Portable burning stove providing warm air12 Oct 2021US 11,143,408 B2
- Exhaust gas treatment device with a burner for generating a flame for the combustion of process gas30 Nov 2023US 2023/0383948 A1DAS Environmental Expert GmbH
- Viewport for high temperature combustion zones6 Jul 2023US 2023/0213189 A1HRST, Inc.
- Combustion systems with ease of serviceability4 Nov 2021US 2021/0341176 A1Rheem Manufacturing Company
- Viewport for high temperature combustion zones16 Sep 2021US 2021/0285638 A1HRST, Inc.
- Burner for generating a flame for the combustion of process gas and exhaust gas treatment device with a burner31 Dec 2020US 2020/0408404 A1DAS Environmental Expert GmbH
Most cited
By later US patents
- Heat insulating screen40US 4,048,978 AGlaverbel-Mecaniver · 1977
- Double sided heat barrier glass with clear CVD coating and method of making the same39US 6,024,084 AEngineered Glass Products, LLC · 2000
- Transparent vacuum insulation plate29US 4,358,490 A1982
- Gas burner system providing reduced noise levels23US 6,106,276 ANational Tank Company · 2000
- Burner with low NOx emissions18US 6,877,980 B2ExxonMobil Chemical Patents Inc. · 2005