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Combustion-zone chemical sensing system and associated method |
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Demultiplexing filter and method |
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2025-06-03 |
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TDLAS architecture for widely spaced wavelengths |
Andrew D. Sappey |
2022-11-29 |
| 10948184 |
Method and apparatus for monitoring port blockage for TDLAS measurements in harsh environments |
Michael J. Estes, Andrew D. Sappey |
2021-03-16 |
| 10830698 |
TDLAS architecture for widely spaced wavelength |
Andrew D. Sappey |
2020-11-10 |
| 10371378 |
Method and apparatus for monitoring port blockage for TDLAS measurements in harsh environments |
Michael J. Estes, Andrew D. Sappey |
2019-08-06 |
| 10352852 |
TDLAS architecture for widely spaced wavelengths |
Andrew D. Sappey |
2019-07-16 |
| 9366621 |
In-furnace retro-reflectors with steerable tunable diode laser absorption spectrometer |
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2016-06-14 |
| 8786856 |
Method and apparatus for monitoring combustion properties in an interior of a boiler |
Michael J. Estes, Andrew D. Sappey, Henrik Hofvander, Allen Molitoris, Pei Huang |
2014-07-22 |
| 8786857 |
Mitigation of optical signal noise using a multimode transmit fiber |
James Richard Howell, Henrik Hofvander, Andrew D. Sappey |
2014-07-22 |
| 8699011 |
Time-synchronized TDLAS measurements of pressure and temperature in a gas turbine engine |
Henrik Hofvander, Andrew D. Sappey, James Richard Howell, David Owenby, Lee Sutherland +1 more |
2014-04-15 |
| 8544279 |
Method and apparatus for spectroscopic measurements in the combustion zone of a gas turbine engine |
Andrew D. Sappey, Henrik Hofvander |
2013-10-01 |
| 7787728 |
Optical mode noise averaging device |
Eric Christopher Huelson, Ian Smith |
2010-08-31 |
| 7729566 |
Method for the monitoring and control of a process |
Andrew D. Sappey, James Richard Howell, Henrik Hofvander |
2010-06-01 |
| 7469092 |
Method and apparatus for the monitoring and control of a process |
Andrew D. Sappey, James Richard Howell, Henrik Hofvander |
2008-12-23 |
| 7389027 |
Method and apparatus for the monitoring and control of a process |
Andrew D. Sappey, James Richard Howell, Henrik Hofvander |
2008-06-17 |
| 7248755 |
Method and apparatus for the monitoring and control of combustion |
Andrew D. Sappey, James Richard Howell, Henrick Hofvander |
2007-07-24 |
| 6925234 |
Flexure apparatus and method for achieving efficient optical coupling |
Nikolai Alexeev |
2005-08-02 |
| 6724787 |
Low noise solid state laser |
Henrik Hofvander |
2004-04-20 |