ClassID:

188551

G05D21/02 - CPC Classification

Classification description:

Control of chemical or physico-chemical variables, e.g. pH value characterised by the use of electric means

Recent Application in this class:
#1
20260079508
2026-03-19

EXTRACTED PETROLEUM AND BIOFUEL FEEDSTOCK BLENDING APPARATUS AND METHOD OF USE THEREOF

#2
20250290243
2025-09-18

PRESSURE COMPENSATED VENTURI DISPENSING SYSTEM

#3
20240401886
2024-12-05

A METHOD OF ADJUSTING OXOACIDITY

#4
20240393230
2024-11-28

ENVIRONMENTAL TEST EQUIPMENT FOR COOPERATIVE CONTROL OF SALT SPRAY CONCENTRATION AND RELATIVE HUMIDITY

#5
20240342672
2024-10-17

CHEMICAL LIQUID PREPARATION DEVICE, AND SUBSTRATE PROCESSING DEVICE

#6
20240255465
2024-08-01

METHODS TO AUTOMATICALLY CALIBRATE PH SENSORS WITHOUT SAMPLING

#7
20240200255
2024-06-20

Pressure compensated Venturi dispensing system

#8
20240132829
2024-04-25

IDENTIFICATION OF CALIBRATION DEVIATIONS OF pH-MEASURING DEVICES

#9
20240125437
2024-04-18

Mixer with multi-injection quills

#10
20230341878
2023-10-26

CHEMICAL CONTROLLER SYSTEM AND METHOD

#11
20230279684
2023-09-07

MONITORING AND CONTROLLING CONNECTED POOL DEVICES

#12
20220365546
2022-11-17

Systems and methods for automatic concentration control

#13
20220356403
2022-11-10

Methods for expanding and enriching hydrocarbon diluent pools

#14
20220355295
2022-11-10

Positionally assisted negative particle rejection (PANR) to sort and enrich target cells of interest

#15
20220347641
2022-11-03

Chemical liquid preparation device, and substrate processing device

#16
20220325223
2022-10-13

Identification of calibration deviations of pH-measuring devices

#17
20220290090
2022-09-15

AUTOMATED CONTROL AND PREDICTION FOR A FERMENTATION SYSTEM

#18
20220283062
2022-09-08

Method for Preparation of Liquid Mixtures

#19
20220268729
2022-08-25

Measuring ion strength using closed-loop electrochemical ph modulation

#20
20220236297
2022-07-28

AUTOMATED SOLUTION DISPENSER

#21
20220186129
2022-06-16

Method to mitigate fouling in a hydrocarbon plant

#22
20220165382
2022-05-26

CONTROL SYSTEM FOR RADIOPHARMACEUTICALS

#23
20220126005
2022-04-28

Medicament Preparation Devices, Methods, and Systems

#24
20220066481
2022-03-03

Vaporization system and concentration control module used in the same

#25
20210405667
2021-12-30

Mass flow control system, and semiconductor manufacturing equipment and vaporizer including the system

#26
20210405013
2021-12-30

Mobile unit and method for continuously monitoring flowing cooling water

#27
20210388627
2021-12-16

MONITORING AND CONTROLLING CONNECTED POOL DEVICES

#28
20210362102
2021-11-25

Systems and methods for gas disposal

#29
20210294361
2021-09-23

PROCESS FLUID MONITORING SYSTEM

#30
20210247785
2021-08-12

Chemical controller system and method

#31
20210155513
2021-05-27

Method and system for abating the presence of a selected chemical substance in wastewater flowing in a wastewater channel system

#32
20210132635
2021-05-06

Pressure compensated Venturi dispensing system

#33
20210070097
2021-03-11

System and method for selecting paint compositions based on expected paint application conditions

#34
20210048408
2021-02-18

Methods to automatically calibrate pH sensors without sampling

#35
20200385296
2020-12-10

METHOD FOR CHARACTERIZING THE PREVALENCE OF A BIOCHEMICAL CONDITION WITHIN A POPULATION

#36
20200363371
2020-11-19

Electronic control of the pH of a solution close to an electrode surface

#37
20200361786
2020-11-19

SYSTEM AND APPARATUS FOR DETERMINING AND CONTROLLING WATER CLARITY

#38
20200353381
2020-11-12

Managing foam in gas processing systems

#39
20200339886
2020-10-29

Methods for expanding and enriching hydrocarbon diluent pools

#40
20200261870
2020-08-20

Systems and methods for gas disposal

#41
20200256218
2020-08-13

Seawater leakage detection device in feedwater system, method for detecting seawater leakage in feedwater system, and steam turbine plant

#42
20200241031
2020-07-30

AUTOMATED SOLUTION DISPENSER

#43
20200240884
2020-07-30

Method for preparation of liquid mixtures

#44
20200238196
2020-07-30

Method for preparing aqueous solutions of a defined pH

#45
20200229482
2020-07-23

VARIABLE INTENSITY CONTROLLER FOR A SHORT-TERM INTENSE PROCESS

#46
20200222861
2020-07-16

Systems and methods for gas disposal

#47
20200061559
2020-02-27

Method for providing deionized water with dynamic electrical resistivity

#48
20200039285
2020-02-06

System and method for selecting paint compositions per layer based on substrate conditions

#49
20200004275
2020-01-02

Control system for radiopharmaceuticals

#50
20190382293
2019-12-19

Lab Neutralizer System

#51
20190332131
2019-10-31

Method for maintaining an equilibrium of a physico-chemical parameter of a medium, associated computer program product and electronic module

#52
20190269285
2019-09-05

Waste absorbing formulation with communication capabilities and toilet systems for use thereof

#53
20190241011
2019-08-08

System and method for selecting paint compositions based on expected paint application conditions

#54
20190227581
2019-07-25

Chemical controller system and method

#55
20190137444
2019-05-09

Electronic control of the pH of a solution close to an electrode surface

#56
20190133880
2019-05-09

Systems and Methods for Providing Network Connectivity and Remote Monitoring, Optimization, and Control of Pool/Spa Equipment

#57
20190105226
2019-04-11

Systems and Methods for Providing Network Connectivity and Remote Monitoring, Optimization, and Control of Pool/Spa Equipment

#58
20190091640
2019-03-28

Chemical liquid preparation method, chemical liquid preparation device, and substrate processing device

#59
20190079616
2019-03-14

Display substrate and display apparatus

#60
20190079543
2019-03-14

Pressure compensated Venturi dispensing system

#61
20190048306
2019-02-14

Redox-related context adjustments to a bioprocess monitored by learning systems and methods based on redox indicators

#62
20190041880
2019-02-07

Industrial process control transmitter for determining solution concentration

#63
20180356846
2018-12-13

Operatorless particle processing systems and methods

#64
20180304215
2018-10-25

System and method for providing deionized water with dynamic electrical resistivity

#65
20180272098
2018-09-27

Medical vaporizer with carrier gas characterization, measurement, and/or compensation

#66
20180257056
2018-09-13

Neutralization plant

#67
20180216059
2018-08-02

Identification of calibration deviations of pH-measuring devices

#68
20180199770
2018-07-19

Waste absorbing formulation with communication capabilities and toilet systems for use thereof

#69
20180169596
2018-06-21

Device for adjusting the concentration of gas in a liquid

#70
20180155649
2018-06-07

Biogas blending and verification systems and methods

#71
20180136674
2018-05-17

Method of correcting control logic of selective catalytic reduction catalyst and exhaust system using the same

#72
20180080952
2018-03-22

Automated solution dispenser

#73
20180017979
2018-01-18

Variable Product Agrochemicals Application Management

#74
20170342663
2017-11-30

On-line control and reaction process for pH adjustment

#75
20170297223
2017-10-19

Method For Adjusting Concrete Rheology Based Upon Nominal Dose-Response Profile

#76
20170232363
2017-08-17

Method for predicting the dynamic pH range of a buffer

#77
20170215261
2017-07-27

Systems and methods for providing network connectivity and remote monitoring, optimization, and control of pool/spa equipment

#78
20170213451
2017-07-27

Systems and methods for providing network connectivity and remote monitoring, optimization, and control of pool/spa equipment

#79
20170212536
2017-07-27

Systems and Methods for Providing Network Connectivity and Remote Monitoring, Optimization, and Control of Pool/Spa Equipment

#80
20170212530
2017-07-27

Systems and methods for providing network connectivity and remote monitoring, optimization, and control of pool/spa equipment

#81
20170212489
2017-07-27

Systems and methods for providing network connectivity and remote monitoring, optimization, and control of pool/spa equipment

#82
20170209341
2017-07-27

Systems and methods for providing network connectivity and remote monitoring, optimization, and control of pool/spa equipment

#83
20170209340
2017-07-27

Systems and methods for providing network connectivity and remote monitoring, optimization, and control of pool/spa equipment

#84
20170209339
2017-07-27

Systems and methods for providing network connectivity and remote monitoring, optimization, and control of pool/spa equipment

#85
20170203974
2017-07-20

CHEMICAL MANAGEMENT FOR SWIMMING POOLS

#86
20170175000
2017-06-22

Methods for expanding and enriching hydrocarbon diluent pools

#87
20170121235
2017-05-04

CONTROLLING SYSTEM AND METHOD FOR MAKING COMPOST

#88
20170090490
2017-03-30

Batch authoring tool and bioreactor control system

#89
20170087525
2017-03-30

Systems and methods for gas disposal

#90
20170087521
2017-03-30

Systems and methods for gas disposal

#91
20170027198
2017-02-02

DEVICE AND METHOD FOR CONTROLLING, ANALYZING AND MANAGING PHASES OF CONSERVATION AND/OR PROCESSING OF FOOD IN A MOBILE OR FIXED CLOSED SPACE

#92
20170010238
2017-01-12

Electronic control of the pH of a solution close to an electrode surfaces

#93
20160348059
2016-12-01

Integrated bio-reactor monitor and control system

#94
20160346755
2016-12-01

Reforming with oxygen-enriched matter

#95
20160333303
2016-11-17

INTEGRATED BIO-REACTOR MONITOR AND CONTROL SYSTEM

#96
20160259348
2016-09-08

Chemical controller system and method

#97
20160231207
2016-08-11

Method for preparation of liquid mixtures

#98
20160195880
2016-07-07

Automatic pH adjustment device

#99
20160153898
2016-06-02

Decomposition detecting unit, concentration measuring unit, and concentration control apparatus

#100
20160139610
2016-05-19

Apparatus and method for metals free reduction and control of resistivity of deionized water

#101
20160109887
2016-04-21

Oil handling and monitoring device and system

#102
20160086321
2016-03-24

System and method for image-based analysis of a slurry and control of a slurry process

#103
20160085243
2016-03-24

Methods and apparatus for a chemical regulation system

#104
20160048139
2016-02-18

Real-Time Chemical Process Monitoring, Assessment and Decision-Making Assistance Method

#105
20160026193
2016-01-28

Control system for radiopharmaceuticals

#106
20150316938
2015-11-05

Method and apparatus for controlling acid concentration for pickling in cold rolling

#107
20150217228
2015-08-06

Biofilter with fuzzy logic control

#108
20150188165
2015-07-02

Apparatus for controlling purging in a hydrogen storage system and method for the same

#109
20150177746
2015-06-25

Method of correcting control logic of selective catalytic reduction catalyst and exhaust system using the same

#110
20150176138
2015-06-25

Method for corrosion-protective serial surface treatment of metallic components

#111
20150123300
2015-05-07

Method for determining pattern of mold for imprint, imprint method, and apparatus

#112
20150025685
2015-01-22

Batch authoring tool and bioreactor control system

#113
20150010990
2015-01-08

Integrated bio-reactor monitor and control system

#114
20140372069
2014-12-18

Web-based multi-sensor/instrument control system

#115
20140346122
2014-11-27

System and apparatus for determining and controlling water clarity

#116
20140311991
2014-10-23

Method and device for preventing corrosion in hot water systems

#117
20140309782
2014-10-16

Operatorless particle processing systems and methods

#118
20140305450
2014-10-16

Electronic cigarette and control method thereof

#119
20140277745
2014-09-18

Monitoring hydraulic fracturing

#120
20140269144
2014-09-18

Direct slurry weight sensor for well operation mixing process

#121
20140188282
2014-07-03

Integrated bio-reactor monitor and control system

#122
20140137799
2014-05-22

DEPOSITION APPARATUS AND METHOD OF FORMING THIN FILM

#123
20140107844
2014-04-17

Method for adjusting concrete rheology based upon nominal dose-response profile

#124
20140105785
2014-04-17

Biological safety cabinet with a falling-film evaporator

#125
20140067129
2014-03-06

Variable product agrochemicals application management

#126
20140026648
2014-01-30

TIEFENBACH CONTROL SYSTEMS GMBH

#127
20140018973
2014-01-16

Systems and methods for liquid fuel modeling

#128
20130303809
2013-11-14

Methods for expanding and enriching hydrocarbon diluent pools

#129
20130245830
2013-09-19

Integrated bio-reactor monitor and control system

#130
20130226348
2013-08-29

System and method for control performance monitoring

#131
20130161265
2013-06-27

Systems and methods for monitoring and controlling corrosion in hot water systems

#132
20130081703
2013-04-04

Method of preparing liquid mixtures

#133
20120323367
2012-12-20

APPARATUS AND METHOD FOR pH CONTROL IN WASTEWATER TREATMENT PLANTS AND OTHER SYSTEMS

#134
20120285863
2012-11-15

AUTOMATED SULFUR RECOVERY LOOP

#135
20120280059
2012-11-08

Mission Critical Sanitizer

#136
20120279179
2012-11-08

METHODS AND APPARATUSES FOR MANUFACTURING A PLURALITY OF CARTRIDGES OF MEDICAL BUFFERING SOLUTION WITH A COMMON PH

#137
20120279117
2012-11-08

Method and Apparatus for Refining Coal

#138
20120279114
2012-11-08

Quality certification of oxygenated gasoline

#139
20120269026
2012-10-25

Automated solution maker apparatus

#140
20120255871
2012-10-11

Apparatus and method for adjusting pH of solution

#141
20120234756
2012-09-20

Method and device for preventing corrosion in hot water systems

#142
20120200317
2012-08-09

FEEDFORWARD/FEEDBACK CONTROL SYSTEM FOR INDUSTRIAL WATER SYSTEMS

#143
20120083907
2012-04-05

Variable product agrochemicals application management

#144
20120072028
2012-03-22

Integrated bio-reactor monitor and control system

#145
20120065782
2012-03-15

Integrated bio-reactor monitor and control system

#146
20120024390
2012-02-02

Method for operating a water softening system comprising target value control by a water removal station

#147
20120020180
2012-01-26

Mixer waveform analysis for monitoring and controlling concrete

#148
20110320040
2011-12-29

Method for adjusting concrete rheology based upon nominal dose-response profile

#149
20110290331
2011-12-01

Mains water supply processing

#150
20110264268
2011-10-27

Electrochemical Control Systems And Methods

#151
20110159475
2011-06-30

Integrated bio-reactor monitor and control system

#152
20110094410
2011-04-28

Regeneration apparatus and regeneration method for electroless plating

#153
20110005958
2011-01-13

METHODS AND SYSTEMS FOR ADJUSTING THE pH OF MEDICAL BUFFERING SOLUTIONS

#154
20100329071
2010-12-30

Automated solution maker apparatus

#155
20100318230
2010-12-16

Kitchens exhaust hood and make-up air handling unit optimal speed control system

#156
20100304316
2010-12-02

System and method for controlling the calorie content of a fuel

#157
20100301882
2010-12-02

Method for operating a water softening system having two calibration characteristics and associated water softening system

#158
20100252499
2010-10-07

Denitrification process

#159
20100247379
2010-09-30

REAGENT PREPARING APPARATUS AND SAMPLE ANALYZER

#160
20100230324
2010-09-16

Control of fluid catalytic cracking process for minimizing additive usage in the desulfurization of petroleum feedstocks

#161
20100172202
2010-07-08

Mixer system controlled based on density inferred from sensed mixing tub weight

#162
20100163469
2010-07-01

CONTROL SYSTEM FOR MONITORING LOCALIZED CORROSION IN AN INDUSTRIAL WATER SYSTEM

#163
20100151190
2010-06-17

Adaptive membrane structure with insertable protrusions

#164
20100151077
2010-06-17

Method for making a food or biotechnological product using redox potential regulation

#165
20100145318
2010-06-10

Method and device for changing the pH of a solution

#166
20100126930
2010-05-27

Denitrification system

#167
20100116715
2010-05-13

Application of visbreaker analysis tools to optimize performance

#168
20100099172
2010-04-22

Integrated bio-reactor monitor and control system

#169
20100089184
2010-04-15

Fluid sampling system with an in-line probe

#170
20100068103
2010-03-18

Control of pH in formaldehyde-free binder systems

#171
20100063639
2010-03-11

Methods and Systems for Applying and Monitoring Multiple Chemical Treatments in Gas Wells

#172
20100008838
2010-01-14

METHODS AND APPARATUS FOR ABATING ELECTRONIC DEVICE MANUFACTURING PROCESS EFFLUENT

#173
20090317316
2009-12-24

Automated sulfur recovery loop

#174
20090314696
2009-12-24

Adaptive membrane structure

#175
20090211920
2009-08-27

System for maintaining hydrogen purity in electrical generators and method thereof

#176
20090200245
2009-08-13

System for Controlling Water in an Aquatic Facility

#177
20090155914
2009-06-18

Automated solution making

#178
20090095664
2009-04-16

Wastewater denitrification system

#179
20090092001
2009-04-09

SOLUTION MAKING SYSTEM AND METHOD

#180
20090065440
2009-03-12

Method and device for cleanup and deposit removal from internal hot water system surfaces

#181
20090065439
2009-03-12

Method and device for preventing corrosion in hot water systems undergoing intermittent operations

#182
20090035180
2009-02-05

Control system for industrial water system and method for its use

#183
20090026144
2009-01-29

Method and device for preventing corrosion in hot water systems

#184
20080279038
2008-11-13

Multi-stage accurate blending system and method

#185
20080148818
2008-06-26

System for monitoring the health of electrical generators and method thereof

#186
20080128325
2008-06-05

Advanced control of severe fluid catalytic cracking process for maximizing propylene production from petroleum feedstock

#187
20080023045
2008-01-31

Conductivity control of water content in solvent strip baths

#188
20070250300
2007-10-25

Method for Controlling a Microbiological Process on the Basis of Successive Temporal Derivatives of State Variables

#189
20070244601
2007-10-18

System for monitoring the health of electrical generators and method thereof

#190
20070151864
2007-07-05

Apparatus and method for adjusting pH of solution

#191
20070144966
2007-06-28

Denitrification process

#192
20070138025
2007-06-21

Microfluidic device for electrochemically regulating pH of fluid and method of regulating pH of fluid using the microfluidic device

#193
20070068813
2007-03-29

Microfluidic device for electrically regulating the pH of a fluid therein and method of regulating the pH of a fluid in a microfluidic device using the same

#194
20070025179
2007-02-01

Automated solution maker apparatus

#195
20070023284
2007-02-01

Regeneration apparatus and regeneration method for electroless plating

#196
20060280906
2006-12-14

Adaptive membrane structure with insertable protrusions

#197
20060241874
2006-10-26

Monitoring system

#198
20060211129
2006-09-21

Real-time component monitoring and replenishment system for multicomponent fluids

#199
20060182651
2006-08-17

Method of inhibiting corrosion in hot water systems

#200
20060169598
2006-08-03

Method of controlling pH of electrolyzed solution using microfluidic device including electrolysis device

#201
20060113242
2006-06-01

Wastewater treatment control system, terminal, computer program and accounting method

#202
20060108292
2006-05-25

Wastewater treatment control system, terminal, computer program and accounting method

#203
20060106501
2006-05-18

NEURAL MODELING FOR NOx GENERATION CURVES

#204
20060057727
2006-03-16

System for monitoring the health of electrical generators and method thereof

#205
20060057034
2006-03-16

System for maintaining hydrogen purity in electrical generators and method thereof

#206
20050288409
2005-12-29

Control of pH in formaldehyde-free binder systems

#207
20050273203
2005-12-08

Accurate blending module and method

#208
20050249917
2005-11-10

Adaptive membrane structure

#209
20050238549
2005-10-27

Electronic controls for pollutant removal

#210
20050158701
2005-07-21

Integrated bio-reactor monitor and control system

#211
20050112542
2005-05-26

Integrated bio-reactor monitor and control system

#212
20050109792
2005-05-26

Method and device for detecting and checking the quality or properties of a mixture of fluids, in particular a food or domestic mixture

#213
20050106062
2005-05-19

Method of guaranteeing at least one characteristic of a fluid used for producing food products

#214
20050102067
2005-05-12

Diluting system and method

#215
20050009192
2005-01-13

Remote monitoring system for water

#216
18594829
2026-04-07

Situ treatment analysis mixing system

#217
17682047
2024-03-05

Situ treatment analysis mixing system

#218
15649994
2018-12-11

Water monitoring device and method

#219
14226050
2015-06-09

Reductant quality system including rationality diagnostic