F23M 11/045
By observing the flame
Official title: {by observing the flame}
F23M11/045 (By observing the flame) appears on 63 US grants and 40 published applications in this corpus.
Search patents in F23M- Granted patents
- 63
- Published applications
- 40
- Assignees
- 49
- Inventors
- 176
- Latest grant
- 12 May 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 2 | 0 |
| 1978 | 0 | 0 |
| 1979 | 1 | 0 |
| 1980 | 1 | 0 |
| 1981 | 0 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 7 | 0 |
| 1985 | 1 | 0 |
| 1986 | 1 | 0 |
| 1987 | 2 | 0 |
| 1988 | 1 | 0 |
| 1989 | 2 | 0 |
| 1990 | 1 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 1 | 0 |
| 1997 | 1 | 0 |
| 1998 | 2 | 0 |
| 1999 | 0 | 0 |
| 2000 | 2 | 0 |
| 2001 | 1 | 1 |
| 2002 | 2 | 1 |
| 2003 | 2 | 1 |
| 2004 | 1 | 0 |
| 2005 | 0 | 3 |
| 2006 | 0 | 4 |
| 2007 | 1 | 2 |
| 2008 | 3 | 0 |
| 2009 | 1 | 3 |
| 2010 | 2 | 5 |
| 2011 | 2 | 0 |
| 2012 | 2 | 1 |
| 2013 | 1 | 2 |
| 2014 | 0 | 1 |
| 2015 | 2 | 4 |
| 2016 | 4 | 2 |
| 2017 | 2 | 1 |
| 2018 | 1 | 2 |
| 2019 | 1 | 0 |
| 2020 | 1 | 2 |
| 2021 | 1 | 3 |
| 2022 | 1 | 0 |
| 2023 | 2 | 2 |
| 2024 | 1 | 0 |
| 2025 | 0 | 0 |
| 2026 | 1 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Inspection device12 May 2026US 12,624,835 B2Azbil Corporation
- Viewport for high temperature combustion zones6 Feb 2024US 11,892,164 B2HRST, Inc.
- Multi-function sight port and method of installing a multi-function sight port18 Jul 2023US 11,703,223 B2OnPoint Technologies, LLC
- Viewport for high temperature combustion zones14 Mar 2023US 11,603,992 B2HRST, Inc.
- Burner with improved orifice plate21 Jun 2022US 11,365,881 B2Webasto SE
- Inspection device27 Jul 2023US 2023/0235880 A1Azbil Corporation
- Viewport for high temperature combustion zones6 Jul 2023US 2023/0213189 A1HRST, Inc.
- Viewport for high temperature combustion zones16 Sep 2021US 2021/0285638 A1HRST, Inc.
- Multi-function sight port amd method of installing a multi-function sight port18 Mar 2021US 2021/0080105 A1c/o OnPoint Technologies, LLC
- Shutter test device for flame/fire detectors25 Feb 2021US 2021/0056835 A1Nero EndüStri Savunma Sanayi Anonim Sirketi
Most cited
By later US patents
- Method and combustor apparatus for sensing the level of a contaminant within a combustion flame94US 6,268,913 B1Siemens Westinghouse Power Corporation · 2001
- Apparatus for observing combustion conditions in a gas turbine engine64US 7,484,369 B2Rosemount Aerospace Inc. · 2009
- Method for the control of a burner equipped with an injector nozzle and an arrangement for executing the method55US 4,830,601 A1989
- Torch igniter for a combustor having U.V. flame detection54US 4,860,533 APruTech II · 1989
- Universal pilot assembly34US 4,192,642 ASelas Corporation of America · 1980