Patents-Review.com
ClassID:

168978 ⎘

G01N31/227 - CPC Classification

Classification description:

Investigating or analysing non-biological materials by the use of the chemical methods specified in the subgroup; Apparatus specially adapted for such methods using chemical indicators for nitrates or nitrites

Recent Application in this class:
#1
20260029389
2026-01-29

ANALYTICAL PROCESS FOR DETECTING PEROXIDE-, HALOGEN OXOANION-, AND NITRATE-BASED EXPLOSIVES

 #2
20250130213
2025-04-24

ANALYTE SENSING

 #3
20240230608
2024-07-11

SELECTIVE MONITORING OF BASE CHEMICALS

 #4
20240133852
2024-04-25

SELECTIVE MONITORING OF BASE CHEMICALS

 #5
20230189637
2023-06-15

ELECTRONICALLY ACTIVE, SOLVENT RESISTANT ORGANIC FILMS PROCESSED FROM ALCOHOL OR AQUEOUS MEDIA

 #6
20230119569
2023-04-20

HIGH AND LOW FREQUENCY SOIL AND PLANT ANALYSIS SYSTEMS WITH INTEGRATED MEASUREMENTS

 #7
20220349865
2022-11-03

In-Line Measurement of Nitrite Content in Metalworking Fluids

 #8
20220308027
2022-09-29

ANALYTICAL PROCESS FOR DETECTING PEROXIDE-, HALOGEN OXOANION-, NITRATE-, NITRAMINE-, AND NITROTOLUENE-BASED EXPLOSIVES

 #9
20220236243
2022-07-28

DETECTION OF NITRATES AND THEIR DECOMPOSITION PRODUCTS BY MEANS OF FLUORESCENCE MEASUREMENT

 #10
20210123898
2021-04-29

Nitrate detection with copper oxidation

 #11
20200354479
2020-11-12

Surface functionalization of cellulose and other substrates

 #12
20200088701
2020-03-19

Devices, systems, and methods for detecting targeted compounds

 #13
20190271675
2019-09-05

PORTABLE MICROFLUIDIC DEVICE FOR DETECTING NITRITE-NITRATE

 #14
20190101365
2019-04-04

System for detecting explosives

 #15
20190017980
2019-01-17

Ruthenium complex for use in nitrite detection

 #16
20180299421
2018-10-18

Devices and methods for detecting an explosive substance

 #17
20180136186
2018-05-17

Water quality analysis device

 #18
20180113107
2018-04-26

Devices and methods for detecting an explosive substance

 #19
20180067088
2018-03-08

Enhanced chemical detection using acid catalyzed hydrolysis

 #20
20180031535
2018-02-01

Colorimetric determination of aqueous nitrate concentration

 #21
20170299566
2017-10-19

Reagents for oxidizer-based chemical detection

 #22
20170225963
2017-08-10

Para-aminobenzoic acid sensitized terbium doped LaFnanoparticles for detection of explosive nitro compounds

 #23
20170184507
2017-06-29

Systems and methods for detecting nitric oxide

 #24
20170115262
2017-04-27

Tripodal nitrate receptor

 #25
20160282321
2016-09-29

Selective ion chemistry for nitrate detection

 #26
20150330957
2015-11-19

Method and composition for detecting oxidizing salts

 #27
20150268171
2015-09-24

Method and apparatus for the detection of explosives

 #28
20150004710
2015-01-01

Reagents for oxidizer-based chemical detection

 #29
20140356253
2014-12-04

BIOMEDICAL DEVICES

 #30
20140315285
2014-10-23

LIGNOCELLULOSIC DETECTION DEVICE

 #31
20140106463
2014-04-17

Method and composition for detecting oxidizing salts

 #32
20140065030
2014-03-06

Colorimetric detector

 #33
20140011283
2014-01-09

Method of determining a concentration of nitrate

 #34
20130196362
2013-08-01

Diarylamine-based fluorogenic probes for detection of peroxynitrite

 #35
20120282705
2012-11-08

Explosives detection substrate and methods of using the same

 #36
20100290948
2010-11-18

ABSORBENT ARTICLES CAPABLE OF INDICATING THE PRESENCE OF URINARY TRACT INFECTIONS

 #37
20060211122
2006-09-21

Reagents for the measurement of peroxynitrites

 #38
20060121621
2006-06-08

Nitrate/nitrite assay reagents, kit, and method of use

 #39
20060121620
2006-06-08

Nitrate/nitrite assay reagents, kit, and method of use