F23M 11/047
By observing the flue gas
Official title: {by observing the flue gas (controlling combustion using gas detectors F23N5/003)}
F23M11/047 (By observing the flue gas) appears on 10 US grants and 1 published applications in this corpus.
Search patents in F23M- Granted patents
- 10
- Published applications
- 1
- Assignees
- 4
- Inventors
- 18
- Latest grant
- 16 Oct 2007
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1979 | 1 | 0 |
| 1980 | 1 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 1 | 0 |
| 1984 | 2 | 0 |
| 1985 | 1 | 0 |
| 1986 | 1 | 0 |
| 1987 | 2 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 1 |
| 2007 | 1 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Method and apparatus for detecting the presence of flame in the exhaust path of a gas turbine engine16 Oct 2007US 7,281,382 B2Vibro-Meter SA
- Steam generator on-line efficiency monitor4 Aug 1987US 4,685,072 AThe Babcock & Wilcox Company
- Viewing instrument for chimney21 Jul 1987US 4,681,086 A
- Viewing instrument for chimney23 Sep 1986US 4,612,908 A
- Heating unit15 Jan 1985US 4,493,270 A
Most cited
By later US patents
- Method and apparatus for detecting the presence of flame in the exhaust path of a gas turbine engine11US 7,281,382 B2Vibro-Meter SA · 2007
- Cyclonic furnace7US 4,166,421 AHeenan Environmental Systems Ltd. · 1979
- Apparatus for use in conjunction with boiler flue gases for generating inert blanketing gases6US 4,213,935 AJohn Zink Company · 1980
- Heating unit6US 4,493,270 A1985
- Steam generator on-line efficiency monitor6US 4,685,072 AThe Babcock & Wilcox Company · 1987