Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Browse by Category: Main > Optical & Optics
Class Information
Number: 356/437
Name: Optics: measuring and testing > For light transmission or absorption > Of fluent material > Gas
Description: Subject matter wherein the fluent material is a gaseous substance.










Sub-classes under this class:

Class Number Class Name Patents
356/438 Exhaust, dust or smoke 237


Patents under this class:
1 2 3 4 5 6 7 8 9 10 11 12 13

Patent Number Title Of Patent Date Issued
8711356 Gas sensor with a porous layer that detectably affects a surface lattice resonant condition of a nanoparticle array Apr. 29, 2014
8711357 Dynamic reconstruction of a calibration state of an absorption spectrometer Apr. 29, 2014
8711358 Submersible remote smoke sensor Apr. 29, 2014
8692997 Optical gas and/or particulate sensors Apr. 8, 2014
8681336 System and method for determining flux of isotopologues Mar. 25, 2014
8681337 Independent-beam gas filter correlation radiometry with field-of-view matching Mar. 25, 2014
8665443 Atomic sensor physics package with integrated transmissive and reflective portions along light paths Mar. 4, 2014
8665442 Cavity enhanced laser based isotopic gas analyzer Mar. 4, 2014
8659759 Laser based cavity enhanced optical absorption gas analyzer Feb. 25, 2014
8659758 Laser based cavity enhanced optical absorption gas analyzer with laser feedback optimization Feb. 25, 2014
8654334 Incoherent cavity ringdown spectroscopy gas analyzer coupled with periodic chemical scrubbing Feb. 18, 2014
8649012 Optical gas sensor Feb. 11, 2014
8648731 Gas concentration monitor Feb. 11, 2014
8646408 Flux monitor Feb. 11, 2014
8645081 Device and method of examining absorption of infrared radiation Feb. 4, 2014
8638436 Smoke sensor Jan. 28, 2014
8638440 Plasmonic transparent conducting metal oxide nanoparticles and films for optical sensing applications Jan. 28, 2014
8638439 Apparatus and method for non-intrusive assessment of gas in packages Jan. 28, 2014
8625098 System and method for real-time measurement of equivalence ratio of gas fuel mixture Jan. 7, 2014
8614096 Humidity and temperature corrections to improve accuracy of HF ambient air monitors based on tunable diode laser IR absorption measurements Dec. 24, 2013
8614794 System and apparatus for monitoring concentration of greenhouse gas Dec. 24, 2013
8610894 Dryness fraction measuring device and dryness fraction measuring method Dec. 17, 2013
8599381 Gas detector for atmospheric species detection Dec. 3, 2013
8588557 Integrated optical vapor cell apparatus for precision spectroscopy Nov. 19, 2013
8584508 Photoacoustic sensor with adaptive operating frequency Nov. 19, 2013
8582105 Method and apparatus for leak detection in H2Se furnace Nov. 12, 2013
8576397 Device and method for determining a gas concentration in a flowing gas mixture Nov. 5, 2013
8576398 Concentration measuring device, concentration measuring arrangement and concentration measuring method Nov. 5, 2013
8570520 Optical measuring cell and gas monitor Oct. 29, 2013
8561454 Photoacoustic sensor Oct. 22, 2013
8564779 Adsorptive gas analyzer Oct. 22, 2013
8559721 Filter mosaic for detection of fugitive emissions Oct. 15, 2013
8547553 Fiber optic hydrogen purity sensor and system Oct. 1, 2013
8547554 Method and system for detecting moisture in natural gas Oct. 1, 2013
8537362 Cavity ring down spectroscopy using measured backward mode data Sep. 17, 2013
8531669 Air-driven shutter device and optical analyzer Sep. 10, 2013
8526000 Atomic sensor physics package with integrated transmissive and reflective portions along light paths Sep. 3, 2013
8525129 Gas sensing device Sep. 3, 2013
8508739 Gas concentration measurement device Aug. 13, 2013
8508738 Nitrogen oxide sensing element, nitrogen oxide sensor, nitrogen oxide concentration determination device using same, and method for determining nitrogen oxide concentration Aug. 13, 2013
8500442 Combustion gas analysis Aug. 6, 2013
8502972 Clusters of microresonators for cavity mode optical sensing Aug. 6, 2013
8482735 Laser gas analyzer Jul. 9, 2013
8467064 Gas sampling device Jun. 18, 2013
8462347 Method and apparatus for siloxane measurements in a biogas Jun. 11, 2013
8456634 Optical interrogation sensors for combustion control Jun. 4, 2013
8451447 Photoacoustic sensor May. 28, 2013
8441644 Method and apparatus for the photo-acoustic identification and quantification of analyte species in a gaseous or liquid medium May. 14, 2013
8436335 Detecting element, detecting device, and oxygen concentration test device May. 7, 2013
8437000 Multiple wavelength cavity ring down gas sensor May. 7, 2013

1 2 3 4 5 6 7 8 9 10 11 12 13










 
 
  Recently Added Patents
Blue box
Switched capacitor amplifier
Horse stationary tab
Extreme ultraviolet light source device and method for generating extreme ultraviolet light
Power surface mount light emitting die package
Multi-carrier operation for wireless systems
Wine bottle
  Randomly Featured Patents
Optical mouse
Tube expander and method
Evaporation tray for refrigerators
Aircraft with rotor vibration isolation
Read-only optical recording medium with ZnO near-field optical interaction layer
Drive mechanism
Seat belt retractor
Humanized antibodies to interferon alpha receptor-1 (IFNAR-1)
Ink stamp pad and reservoir
Window drain