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Christian V. O'Keefe
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Durham, CT, US
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Patents Grants
last 30 patents
Information
Patent Grant
Mineral separation using functionalized membranes
Patent number
11,731,143
Issue date
Aug 22, 2023
CiDRA Corporate Services Inc.
Paul J. Rothman
B04 - CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL...
Information
Patent Grant
Assessing the benefits of automatic grinding control using PST tech...
Patent number
11,260,399
Issue date
Mar 1, 2022
CiDRA CORPORATE SERVICES LLC
Robert J. Maron
G01 - MEASURING TESTING
Information
Patent Grant
Method and system for releasing mineral from synthetic bubbles and...
Patent number
11,135,597
Issue date
Oct 5, 2021
CiDRA CORPORATE SERVICES LLC
Paul J. Rothman
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information
Patent Grant
Mineral separation using sized-, weight- or magnetic-based polymer...
Patent number
11,117,141
Issue date
Sep 14, 2021
CiDRA Corporate Services Inc.
Paul J. Rothman
B03 - SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES O...
Information
Patent Grant
Recovery media for mineral processing
Patent number
10,835,905
Issue date
Nov 17, 2020
CiDRA Corporate Services Inc.
Paul J. Rothman
B03 - SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES O...
Information
Patent Grant
Mineral recovery using hydrophobic polymer surfaces
Patent number
10,751,693
Issue date
Aug 25, 2020
CiDRA Corporate Service Inc.
Paul J. Rothman
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information
Patent Grant
Method and apparatus for the control of a flotation separation proc...
Patent number
10,678,207
Issue date
Jun 9, 2020
CiDRA Corporate Service Inc.
Paul Joseph Rothman
B03 - SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES O...
Information
Patent Grant
Dual acoustic and electrical analysis technique for the tomographic...
Patent number
10,379,071
Issue date
Aug 13, 2019
CiDRA Corporate Services Inc.
Alan D. Kersey
G01 - MEASURING TESTING
Information
Patent Grant
Flotation separation using lightweight synthetic beads or bubbles
Patent number
10,357,782
Issue date
Jul 23, 2019
CiDRA CORPORATE SERVICES LLC
Paul J. Rothman
C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
Information
Patent Grant
Dimensionally controlled ‘engineered polymer bubble’ for flotation...
Patent number
10,245,597
Issue date
Apr 2, 2019
CiDRA Corporate Services Inc.
Francis K. Didden
C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
Information
Patent Grant
Method and system for releasing mineral from synthetic bubbles and...
Patent number
9,981,271
Issue date
May 29, 2018
CiDRA CORPORATE SERVICES LLC
Paul J. Rothman
B07 - SEPARATING SOLIDS FROM SOLIDS SORTING
Information
Patent Grant
Mineral recovery in tailings using functionalized polymers
Patent number
9,943,860
Issue date
Apr 17, 2018
CiDRA Corporate Services Inc.
Paul J. Rothman
B07 - SEPARATING SOLIDS FROM SOLIDS SORTING
Information
Patent Grant
Mineral separation using sized-, weight- or magnetic-based polymer...
Patent number
9,827,574
Issue date
Nov 28, 2017
Cidra Corporate Services, Inc
Paul J. Rothman
B07 - SEPARATING SOLIDS FROM SOLIDS SORTING
Information
Patent Grant
Performance monitoring of individual hydrocyclones using sonar-base...
Patent number
9,645,001
Issue date
May 9, 2017
Cidra Corporate Services, Inc
Alex M. Van Der Spek
G01 - MEASURING TESTING
Information
Patent Grant
Flow and pipe management using velocity profile measurement and/or...
Patent number
9,404,893
Issue date
Aug 2, 2016
CiDRA Corporate Services Inc.
Christian O'Keefe
G01 - MEASURING TESTING
Information
Patent Grant
Graphical user interface re wear monitoring
Patent number
9,366,653
Issue date
Jun 14, 2016
CiDRA Corporate Services Inc.
Christian Victor O'Keefe
G01 - MEASURING TESTING
Information
Patent Grant
Synthetic beads/bubbles functionalized with molecules for attractin...
Patent number
9,352,335
Issue date
May 31, 2016
CiDRA Corporate Services Inc.
Paul J. Rothman
B03 - SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES O...
Information
Patent Grant
Wear monitoring with rotational sensor and sensor thickness
Patent number
9,335,298
Issue date
May 10, 2016
CiDRA Corporate Services Inc.
Christian Victor O'Keefe
G01 - MEASURING TESTING
Information
Patent Grant
Synthetic bubbles or beads having hydrophobic surface
Patent number
9,327,294
Issue date
May 3, 2016
CiDRA Corporate Services Inc.
Paul J. Rothman
B03 - SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES O...
Information
Patent Grant
Applications of sonar-based VF/GVF metering to industrial processing
Patent number
9,291,490
Issue date
Mar 22, 2016
CiDRA Corporate Services Inc.
Paul Joseph Rothman
G01 - MEASURING TESTING
Information
Patent Grant
Applications of pump performance monitoring
Patent number
9,062,682
Issue date
Jun 23, 2015
CiDRA CORPORATE SERVICES INC.
Douglas H. Loose
F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
Information
Patent Grant
Apparatus and method of lensing an ultrasonic beam for an ultrasoni...
Patent number
7,673,526
Issue date
Mar 9, 2010
Expro Meters, Inc.
Timothy J. Bailey
G01 - MEASURING TESTING
Information
Patent Grant
Method and apparatus for measuring parameters of a fluid flow using...
Patent number
7,503,227
Issue date
Mar 17, 2009
Cidra Corporate Services, Inc
Michael Davis
G01 - MEASURING TESTING
Information
Patent Grant
Flow measurement apparatus having strain-based sensors and ultrason...
Patent number
7,430,924
Issue date
Oct 7, 2008
Expro Meters Inc.
Daniel L. Gysling
G01 - MEASURING TESTING
Information
Patent Grant
Flow measurement apparatus having strain-based sensors and ultrason...
Patent number
7,237,440
Issue date
Jul 3, 2007
Cidra Corporation
Daniel L. Gysling
G01 - MEASURING TESTING
Information
Patent Grant
Multifunctional optical device having a spatial light modulator wit...
Patent number
7,126,740
Issue date
Oct 24, 2006
Cidra Corporation
Paul Szczepanek
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Optical interleaver/deinterleaver device having an array of micro-m...
Patent number
6,922,277
Issue date
Jul 26, 2005
Cidra Corporation
John A. Moon
G02 - OPTICS
Patents Applications
last 30 patents
Information
Patent Application
OPEN CELL OR RETICULATED FOAM HAVING 3-DIMENSIONAL OPEN-NETWORK STR...
Publication number
20210379603
Publication date
Dec 9, 2021
CiDRA CORPORATE SERVICES LLC
Paul J. ROTHMAN
B03 - SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES O...
Information
Patent Application
ASSESSING THE BENEFITS OF AUTOMATIC GRINDING CONTROL USING PST TECH...
Publication number
20200246806
Publication date
Aug 6, 2020
CIDRA CORPORATE SERVICES INC.
Robert J. MARON
B02 - CRUSHING, PULVERISING, OR DISINTEGRATING PREPARATORY TREATMENT OF GRAIN...
Information
Patent Application
METHOD AND APPARATUS FOR PREDICTING MAINTENANCE NEEDS OF A PUMP BAS...
Publication number
20200191130
Publication date
Jun 18, 2020
CIDRA CORPORATE SERVICES INC.
Alex VAN DER SPEK
F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
Information
Patent Application
METHOD AND SYSTEM FOR RELEASING MINERAL FROM SYNTHETIC BUBBLES AND...
Publication number
20190201914
Publication date
Jul 4, 2019
CiDRA CORPORATE SERVICES LLC
Paul J. ROTHMAN
B03 - SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES O...
Information
Patent Application
DETECTION OF CYCLONE WEAR OR DAMAGE USING INDIVIDUAL CYCLONE OVERFL...
Publication number
20180272362
Publication date
Sep 27, 2018
CIDRA CORPORATE SERVICES INC.
Dylan CIRULIS
B04 - CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL...
Information
Patent Application
MINERAL SEPARATION USING SIZED-, WEIGHT- OR MAGNETIC-BASED POLYMER...
Publication number
20180200730
Publication date
Jul 19, 2018
CIDRA CORPORATE SERVICES INC.
Paul J. Rothman
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information
Patent Application
RECOVERY MEDIA FOR MINERAL PROCESSING, USING OPEN CELL OR RETICULAT...
Publication number
20170232451
Publication date
Aug 17, 2017
CIDRA CORPORATE SERVICES INC.
Paul J. ROTHMAN
B03 - SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES O...
Information
Patent Application
MINERAL RECOVERY USING HYDROPHOBIC POLYMER SURFACES
Publication number
20170080403
Publication date
Mar 23, 2017
CIDRA CORPORATE SERVICES INC.
Paul J. ROTHMAN
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information
Patent Application
MINERAL RECOVERY IN TAILINGS USING FUNCTIONALIZED POLYMERS
Publication number
20150209799
Publication date
Jul 30, 2015
CIDRA CORPORATE SERVICES INC.
Paul J. Rothman
B03 - SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES O...
Information
Patent Application
METHOD AND APPARATUS FOR THE CONTROL OF A FLOTATION SEPARATION PROC...
Publication number
20150160645
Publication date
Jun 11, 2015
CIDRA CORPORATE SERVICES INC.
Paul Joseph Rothman
B07 - SEPARATING SOLIDS FROM SOLIDS SORTING
Information
Patent Application
DIMENSIONALLY CONTROLLED 'ENGINEERED POLYMER BUBBLE' FOR FLOTATION...
Publication number
20150083646
Publication date
Mar 26, 2015
CIDRA CORPORATE SERVICES INC.
Francis K. Didden
B03 - SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES O...
Information
Patent Application
DUAL ACOUSTIC AND ELECTRICAL ANALYSIS TECHNIQUE FOR THE TOMOGRAPHIC...
Publication number
20150020579
Publication date
Jan 22, 2015
CIDRA CORPORATE SERVICES INC.
Alan D. Kersey
G01 - MEASURING TESTING
Information
Patent Application
SYNTHETIC BEADS/BUBBLES FUNCTIONALIZED WITH MOLECULES FOR ATTRACTIN...
Publication number
20140227520
Publication date
Aug 14, 2014
CIDRA CORPORATE SERVICES INC.
Paul J. Rothman
B03 - SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES O...
Information
Patent Application
SYNTHETIC BUBBLES OR BEADS HAVING HYDROPHOBIC SURFACE
Publication number
20140202959
Publication date
Jul 24, 2014
CIDRA CORPORATE SERVICES INC.
Paul J. Rothman
B03 - SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES O...
Information
Patent Application
METHOD AND SYSTEM FOR RELEASING MINERAL FROM SYNTHETIC BUBBLES AND...
Publication number
20140197077
Publication date
Jul 17, 2014
CIDRA CORPORATE SERVICES INC.
Paul J. Rothman
B03 - SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES O...
Information
Patent Application
MINERAL SEPARATION USING SIZED-, WEIGHT- OR MAGNETIC-BASED POLYMER...
Publication number
20140183104
Publication date
Jul 3, 2014
CIDRA CORPORATE SERVICES INC.
Paul J. Rothman
B03 - SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES O...
Information
Patent Application
Flotation Separation Using Lightweight Synthetic Beads or Bubbles
Publication number
20140166585
Publication date
Jun 19, 2014
CIDRA CORPORATE SERVICES INC.
Paul J. Rothman
B03 - SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES O...
Information
Patent Application
MINERAL SEPARATION USING FUNCTIONALIZED MEMBRANES
Publication number
20140138324
Publication date
May 22, 2014
CIDRA CORPORATE SERVICES INC.
Paul J. Rothman
B03 - SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES O...
Information
Patent Application
WEAR MONITORING WITH ROTATIONAL SENSOR AND SENSOR THICKNESS
Publication number
20140026666
Publication date
Jan 30, 2014
CIDRA CORPORATE SERVICES INC.
Christian Victor O'KEEFE
G01 - MEASURING TESTING
Information
Patent Application
GRAPHICAL USER INTERFACE RE WEAR MONITORING
Publication number
20140026667
Publication date
Jan 30, 2014
CIDRA CORPORATE SERVICES INC.
Christian Victor O'KEEFE
G01 - MEASURING TESTING
Information
Patent Application
PERFORMANCE MONITORING OF INDIVIDUAL HYDROCYCLONES USING SONAR- BAS...
Publication number
20120209550
Publication date
Aug 16, 2012
CiDRA Corporate Services, Inc.
Alex M. Van Der Spek
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information
Patent Application
METHOD AND APPARATUS FOR PREDICTING MAINTENANCE NEEDS OF A PUMP BAS...
Publication number
20120141301
Publication date
Jun 7, 2012
CIDRA CORPORATE SERVICES INC.
Alex Van Der Spek
F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
Information
Patent Application
APPLICATIONS OF SONAR-BASED VF/GVF METERING TO INDUSTRIAL PROCESSING
Publication number
20110160893
Publication date
Jun 30, 2011
CIDRA CORPORATE SERVICES INC.
Paul Joseph Rothman
G01 - MEASURING TESTING
Information
Patent Application
APPLICATIONS OF PUMP PERFORMANCE MONITORING
Publication number
20110118998
Publication date
May 19, 2011
CIDRA CORPORATE SERVICES INC.
Douglas H. Loose
F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
Information
Patent Application
FLOW AND PIPE MANAGEMENT USING VELOCITY PROFILE MEASUREMENT AND/OR...
Publication number
20110056298
Publication date
Mar 10, 2011
CIDRA CORPORATE SERVICES INC.
Christian Victor O'keefe
G01 - MEASURING TESTING
Information
Patent Application
Flow Measurement Apparatus Having Strain-Based Sensors and Ultrason...
Publication number
20080022782
Publication date
Jan 31, 2008
Daniel L. Gysling
G01 - MEASURING TESTING
Information
Patent Application
Method and apparatus for measuring parameters of a fluid flow using...
Publication number
20070044572
Publication date
Mar 1, 2007
Michael Davis
G01 - MEASURING TESTING
Information
Patent Application
Flow measurement apparatus having strain-based sensors and ultrason...
Publication number
20050125170
Publication date
Jun 9, 2005
Daniel L. Gysling
G01 - MEASURING TESTING
Information
Patent Application
Multifunctional optical device having a spatial light modulator wit...
Publication number
20040008401
Publication date
Jan 15, 2004
CiDRA Corporation
Paul Szczepanek
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Reconfigurable optical add/drop multiplexer having an array of micr...
Publication number
20030095307
Publication date
May 22, 2003
CiDRA Corporation
John A. Moon
H04 - ELECTRIC COMMUNICATION TECHNIQUE