ClassID:

167858

G01N2021/394 - CPC Classification

Classification description:

Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light; Systems in which incident light is modified in accordance with the properties of the material investigated; Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands; Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using tunable lasers DIAL method

Recent Application in this class:
#1
20260016401
2026-01-15

MULTI-WAVE DIFFERENTIAL ABSORPTION LIDAR

#2
20250347619
2025-11-13

Method for remote detection of gaseous substances in the atmosphere by the DIAL system with two lasers and a remote detector

#3
20250003872
2025-01-02

RAPIDLY TUNEABLE DIODE LIDAR FOR METHANE DETECTION

#4
20240393239
2024-11-28

Methods and systems for open path gas detection

#5
20240210315
2024-06-27

Methods and systems for open path gas detection

#6
20240192131
2024-06-13

Rapidly tuneable diode lidar

#7
20230160814
2023-05-25

Method for remote detection of gaseous substances in the atmosphere by the DIAL system with two lasers and a remote detector

#8
20220244179
2022-08-04

Rapidly tuneable diode lidar

#9
20190376890
2019-12-12

Method and systems for remote emission detection and rate determination

#10
20180366904
2018-12-20

Robust, compact, field-able tunable integrated photonic device

#11
20180340885
2018-11-29

Method of frequency comb generation, associated generation module, remote spectroscopy method and associated spectroscopy device

#12
20180248332
2018-08-30

Laser frequency control and sensing system

#13
20160356706
2016-12-08

Spectrally pure short-pulse laser

#14
20160334507
2016-11-17

Simultaneous ranging and remote chemical sensing utilizing optical dispersion or absorption spectroscopy

#15
20160274025
2016-09-22

Systems and methods for detecting gases, airborne compounds, and other particulates

#16
20120002689
2012-01-05

Method and system for non-mechanical rapid tuning of an optical parametric oscillator

#17
20110082649
2011-04-07

STAND-OFF ACTIVE DETECTION OF CHEMICAL SUBSTANCES

#18
20090055102
2009-02-26

Remote sensor and in-situ sensor system for improved detection of chemicals in the atmosphere and related method thereof

#19
20070002306
2007-01-04

Ground surface cover type reflectivity variation correction in a differential absorption LIDAR system

#20
20060268947
2006-11-30

Multi-line tunable laser system

#21
20060114447
2006-06-01

Laser radar apparatus having multiple output wavelengths

#22
20050134859
2005-06-23

System and method for remote quantitative detection of fluid leaks from a natural gas or oil pipeline