Geoff C. Gerhardt

Person

Millbury, MA, US

People

Patents Grantslast 30 patents

Information Patent Grant
Parallel insulated chromatography columns
- Patent number 12,163,934
- Issue date Dec 10, 2024
- Waters Technologies Corporation
- Michael O. Fogwill
- G01 - MEASURING TESTING
Information Patent Grant
Matching thermally modulated variable restrictors to chromatography...
- Patent number 11,733,216
- Issue date Aug 22, 2023
- Waters Technologies Corporation
- Michael O. Fogwill
- G01 - MEASURING TESTING
Information Patent Grant
Mass spectrometer ion source with integrated column
- Patent number 11,169,125
- Issue date Nov 9, 2021
- Waters Technologies Corporation
- Michael O. Fogwill
- G01 - MEASURING TESTING
Information Patent Grant
Method and apparatus for injecting a chromatographic sample
- Patent number 11,105,778
- Issue date Aug 31, 2021
- Waters Technologies Corporation
- Martin Gilar
- G01 - MEASURING TESTING
Information Patent Grant
Method and apparatus for injecting a chromatographic sample
- Patent number 11,061,003
- Issue date Jul 13, 2021
- Waters Technologies Corporation
- Martin Gilar
- G01 - MEASURING TESTING
Information Patent Grant
Managing fluidic connections to microfluidic devices
- Patent number 10,866,218
- Issue date Dec 15, 2020
- Waters Technologies Corporation
- Geoff C. Gerhardt
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Grant
Method and apparatus for flame ionization detection for chromatography
- Patent number 10,852,279
- Issue date Dec 1, 2020
- Waters Technologies Corporation
- Michael O. Fogwill
- G01 - MEASURING TESTING
Information Patent Grant
Apparatus and methods for creating a static and traversing thermal...
- Patent number 10,071,374
- Issue date Sep 11, 2018
- Waters Technologies Corporation
- Joseph D. Michienzi
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Grant
Analysis of dried blood spot samples in a microfluidic system with...
- Patent number 10,024,826
- Issue date Jul 17, 2018
- Waters Technologies Corporation
- James P. Murphy
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Grant
Pressure sensing and flow control in diffusion-bonded planar device...
- Patent number 9,952,186
- Issue date Apr 24, 2018
- Waters Technologies Corporation
- Bernard Bunner
- G05 - CONTROLLING REGULATING
Information Patent Grant
Systems and methods of compensation for chromatography column volum...
- Patent number 9,829,470
- Issue date Nov 28, 2017
- Waters Technologies Corporation
- Geoff C. Gerhardt
- G01 - MEASURING TESTING
Information Patent Grant
Systems, devices, and methods for connecting a chromatography syste...
- Patent number 9,768,004
- Issue date Sep 19, 2017
- Waters Technologies Corporation
- Michael O. Fogwill
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Microfluidic flame ionization detector
- Patent number 9,719,971
- Issue date Aug 1, 2017
- Waters Technologies Corporation
- Michael O. Fogwill
- G01 - MEASURING TESTING
Information Patent Grant
Interfacing with a digital microfluidic device
- Patent number 9,496,125
- Issue date Nov 15, 2016
- Waters Technologies Corporation
- Bernard Bunner
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Flow sensors and flow sensing methods with extended linear range
- Patent number 9,429,548
- Issue date Aug 30, 2016
- Waters Technologies Corporation
- Geoff C. Gerhardt
- G01 - MEASURING TESTING
Information Patent Grant
Electrokinetically controlled calibrant delivery
- Patent number 9,396,916
- Issue date Jul 19, 2016
- Waters Technologies Corporation
- Geoff C. Gerhardt
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Closed loop flow control of a HPLC constant flow pump to enable low...
- Patent number 9,393,504
- Issue date Jul 19, 2016
- Waters Technologies Corporation
- Geoff C. Gerhardt
- F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
Information Patent Grant
Pressure sensing and flow control in diffusion-bonded planar device...
- Patent number 9,304,115
- Issue date Apr 5, 2016
- Waters Technologies Corporation
- Bernard Bunner
- G05 - CONTROLLING REGULATING
Information Patent Grant
Variable-volume injection valve
- Patent number 9,115,815
- Issue date Aug 25, 2015
- Waters Technologies Corporation
- Geoff C. Gerhardt
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Grant
Thermal-based flow sensing apparatuses and methods for high-perform...
- Patent number 8,943,887
- Issue date Feb 3, 2015
- Waters Technologies Corporation
- Geoff C. Gerhardt
- G01 - MEASURING TESTING
Information Patent Grant
Closed loop flow control of a HPLC constant flow pump to enable low...
- Patent number 8,679,333
- Issue date Mar 25, 2014
- Waters Technologies Corporation
- Geoff C. Gerhardt
- F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
Information Patent Grant
Flow sensing apparatus used to monitor/provide feedback system to a...
- Patent number 8,679,332
- Issue date Mar 25, 2014
- Waters Technology Corporation
- Geoff C. Gerhardt
- G01 - MEASURING TESTING
Information Patent Grant
Compliant-seal check valve
- Patent number 8,671,975
- Issue date Mar 18, 2014
- Waters Technologies Corporation
- Christopher B. Charlton
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Grant
Variable resistance fluid controller
- Patent number 8,640,730
- Issue date Feb 4, 2014
- Waters Technologies Corporation
- Geoff C. Gerhardt
- G01 - MEASURING TESTING
Information Patent Grant
Sample injector system for liquid chromatography
- Patent number 8,173,070
- Issue date May 8, 2012
- Waters Technologies Corporation
- Geoff C. Gerhardt
- G01 - MEASURING TESTING
Information Patent Grant
Capillary interconnection fitting and method of holding capillary t...
- Patent number 7,909,367
- Issue date Mar 22, 2011
- Waters Technologies Corporation
- Kenneth R. Plant
- G01 - MEASURING TESTING
Information Patent Grant
Freeze-thaw valve that self-limits cryogenic agent usage
- Patent number 7,841,190
- Issue date Nov 30, 2010
- Waters Technologies Corporation
- Geoff C. Gerhardt
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Grant
Closed loop flow control of a HPLC constant flow pump to enable low...
- Patent number 7,674,375
- Issue date Mar 9, 2010
- Waters Technologies Corporation
- Geoff C. Gerhardt
- F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
Information Patent Grant
Flow sensing apparatus used to monitor/provide feedback to a split...
- Patent number 7,332,087
- Issue date Feb 19, 2008
- Waters Investments Limited
- Geoff C. Gerhardt
- G01 - MEASURING TESTING
Information Patent Grant
Method for using a hydraulic amplifier pump in ultrahigh pressure l...
- Patent number 7,311,502
- Issue date Dec 25, 2007
- Waters Investments Limited
- Geoff C. Gerhardt
- F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...

Patents Applicationslast 30 patents

Information Patent Application
PARALLEL INSULATED CHROMATOGRAPHY COLUMNS
- Publication number 20210396721
- Publication date Dec 23, 2021
- WATERS TECHNOLOGIES CORPORATION
- Michael O. Fogwill
- G01 - MEASURING TESTING
Information Patent Application
INSULATED SERIAL COLUMN CHROMATOGRAPHY ARRANGEMENTS AND SYSTEMS
- Publication number 20210396722
- Publication date Dec 23, 2021
- WATERS TECHNOLOGIES CORPORATION
- Michael O. Fogwill
- G01 - MEASURING TESTING
Information Patent Application
MICRO SOLID PHASE EXTRACTION DEVICES AND METHODS
- Publication number 20210199624
- Publication date Jul 1, 2021
- WATERS TECHNOLOGIES CORPORATION
- Martin Gilar
- G01 - MEASURING TESTING
Information Patent Application
MICRO SOLID PHASE EXTRACTION DEVICES AND METHODS
- Publication number 20210199630
- Publication date Jul 1, 2021
- WATERS TECHNOLOGIES CORPORATION
- Martin Gilar
- G01 - MEASURING TESTING
Information Patent Application
MATCHING THERMALLY MODULATED VARIABLE RESTRICTORS TO CHROMATOGRAPHY...
- Publication number 20200333301
- Publication date Oct 22, 2020
- WATERS TECHNOLOGIES CORPORATION
- Michael O. Fogwill
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Application
METHOD AND APPARATUS FOR INJECTING A CHROMATOGRAPHIC SAMPLE
- Publication number 20200041463
- Publication date Feb 6, 2020
- WATERS TECHNOLOGIES CORPORATION
- Martin Gilar
- G01 - MEASURING TESTING
Information Patent Application
Mass Spectrometer Ion Source with Integrated Column
- Publication number 20190317062
- Publication date Oct 17, 2019
- WATERS TECHNOLOGIES CORPORATION
- Michael O. Fogwill
- G01 - MEASURING TESTING
Information Patent Application
MANAGING FLUIDIC CONNECTIONS TO MICROFLUIDIC DEVICES
- Publication number 20190234915
- Publication date Aug 1, 2019
- WATERS TECHNOLOGIES CORPORATION
- Geoff C. Gerhardt
- G01 - MEASURING TESTING
Information Patent Application
METHOD AND APPARATUS FOR INJECTING A CHROMATOGRAPHIC SAMPLE
- Publication number 20190170706
- Publication date Jun 6, 2019
- WATERS TECHNOLOGIES CORPORATION
- Martin Gilar
- G01 - MEASURING TESTING
Information Patent Application
MATCHING OF RESTRICTORS AND SEPARATION COLUMNS
- Publication number 20190111376
- Publication date Apr 18, 2019
- WATERS TECHNOLOGIES CORPORATION
- Michael O. Fogwill
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Application
METHOD AND APPARATUS FOR FLAME IONIZATION DETECTION FOR CHROMATOGRAPHY
- Publication number 20190094190
- Publication date Mar 28, 2019
- Michael O. Fogwill
- G01 - MEASURING TESTING
Information Patent Application
INTEGRAL SAMPLE IDENTIFICATION THROUGHOUT A WORKFLOW PROCESS
- Publication number 20180161770
- Publication date Jun 14, 2018
- WATERS TECHNOLOGIES CORPORATION
- Pamela J. Longenbach
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Application
PRESSURE SENSING AND FLOW CONTROL IN DIFFUSION-BONDED PLANAR DEVICE...
- Publication number 20160169843
- Publication date Jun 16, 2016
- WATERS TECHNOLOGIES CORPORATION
- Bernard Bunner
- G01 - MEASURING TESTING
Information Patent Application
APPARATUS AND METHODS FOR CREATING A STATIC AND TRAVERSING THERMAL...
- Publication number 20160167048
- Publication date Jun 16, 2016
- WATERS TECHNOLOGIES CORPORATION
- Joseph D. MICHIENZI
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Application
SYSTEMS AND METHODS OF COMPENSATION FOR CHROMATOGRAPHY COLUMN VOLUM...
- Publication number 20160139095
- Publication date May 19, 2016
- WATERS TECHNOLOGIES CORPORATION
- Geoff C. Gerhardt
- G01 - MEASURING TESTING
Information Patent Application
MATCHING THERMALLY MODULATED VARIABLE RESTRICTORS TO CHROMATOGRAPHY...
- Publication number 20160018367
- Publication date Jan 21, 2016
- WATERS TECHNOLOGIES CORPORATION
- Michael O. Fogwill
- G01 - MEASURING TESTING
Information Patent Application
INTEGRAL SAMPLE IDENTIFICATION THROUGHOUT A WORKFLOW PROCESS
- Publication number 20150285714
- Publication date Oct 8, 2015
- WATERS TECHNOLOGIES CORPORATION
- Pamela J. Longenbach
- G01 - MEASURING TESTING
Information Patent Application
SYSTEMS, DEVICES, AND METHODS FOR CONNECTING A CHROMATOGRAPHY SYSTE...
- Publication number 20150144782
- Publication date May 28, 2015
- WATERS TECHNOLOGIES CORPORATION
- Michael O. Fogwill
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
MICROFLUIDIC FLAME IONIZATION DETECTOR
- Publication number 20150078962
- Publication date Mar 19, 2015
- WATERS TECHNOLOGIES CORPORATION
- Michael O. Fogwill
- G01 - MEASURING TESTING
Information Patent Application
MANAGING FLUIDIC CONNECTIONS TO MICROFLUIDIC DEVICES
- Publication number 20140345372
- Publication date Nov 27, 2014
- WATERS TECHNOLOGIES CORPORATION
- Geoff C. Gerhardt
- F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
Information Patent Application
ANALYSIS OF DRIED BLOOD SPOT SAMPLES IN A MICROFLUIDIC SYSTEM WITH...
- Publication number 20140208836
- Publication date Jul 31, 2014
- WATERS TECHNOLOGIES CORPORATION
- James P. Murphy
- G01 - MEASURING TESTING
Information Patent Application
Electrokinetically Controlled Calibrant Delivery
- Publication number 20140151541
- Publication date Jun 5, 2014
- WATERS TECHNOLOGIES CORPORATION
- Geoff C. Gerhardt
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
Closed Loop Flow Control Of A HPLC Constant Flow Pump To Enable Low...
- Publication number 20140131277
- Publication date May 15, 2014
- WATERS TECHNOLOGIES CORPORATION
- Geoff C. Gerhardt
- F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
Information Patent Application
VARIABLE-VOLUME INJECTION VALVE
- Publication number 20130206240
- Publication date Aug 15, 2013
- WATERS TECHNOLOGIES CORPORATION
- Geoff C. Gerhardt
- Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC
Information Patent Application
PRESSURE SENSING AND FLOW CONTROL IN DIFFUSION-BONDED PLANAR DEVICE...
- Publication number 20130133760
- Publication date May 30, 2013
- WATERS TECHNOLOGIES CORPORATION
- Bernard Bunner
- G01 - MEASURING TESTING
Information Patent Application
APPARATUS AND METHODS FOR PREPARATION AND ANALYSIS OF DRIED SAMPLES...
- Publication number 20130068043
- Publication date Mar 21, 2013
- WATERS TECHNOLOGIES CORPORATION
- Moon Chul Jung
- C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
Information Patent Application
THERMAL-BASED FLOW SENSING APPARATUS AND METHOD FOR HIGH-PERFORMANC...
- Publication number 20130014569
- Publication date Jan 17, 2013
- WATERS TECHNOLOGIES CORPORATION
- Geoff C. Gerhardt
- G01 - MEASURING TESTING
Information Patent Application
FLOW SENSORS AND FLOW SENSING METHODS WITH EXTENDED LINEAR RANGE
- Publication number 20130013225
- Publication date Jan 10, 2013
- WATERS TECHNOLOGIES CORPORATION
- Geoff C. Gerhardt
- G01 - MEASURING TESTING
Information Patent Application
THERMAL-BASED FLOW SENSING APPARATUSES AND METHODS FOR HIGH-PERFORM...
- Publication number 20120304746
- Publication date Dec 6, 2012
- WATERS TECHNOLOGIES CORPORATION
- Geoff C. Gerhardt
- G01 - MEASURING TESTING
Information Patent Application
Chromatography Apparatus Having An Integrated Core
- Publication number 20120227470
- Publication date Sep 13, 2012
- WATERS TECHNOLOGIES CORPORATION
- Geoff C. Gerhardt
- G01 - MEASURING TESTING

Geoff C. Gerhardt

Person

Patents Grantslast 30 patents

Parallel insulated chromatography columns

Matching thermally modulated variable restrictors to chromatography...

Mass spectrometer ion source with integrated column

Method and apparatus for injecting a chromatographic sample

Method and apparatus for injecting a chromatographic sample

Managing fluidic connections to microfluidic devices

Method and apparatus for flame ionization detection for chromatography

Apparatus and methods for creating a static and traversing thermal...

Analysis of dried blood spot samples in a microfluidic system with...

Pressure sensing and flow control in diffusion-bonded planar device...

Systems and methods of compensation for chromatography column volum...

Systems, devices, and methods for connecting a chromatography syste...

Microfluidic flame ionization detector

Interfacing with a digital microfluidic device

Flow sensors and flow sensing methods with extended linear range

Electrokinetically controlled calibrant delivery

Closed loop flow control of a HPLC constant flow pump to enable low...

Pressure sensing and flow control in diffusion-bonded planar device...

Variable-volume injection valve

Thermal-based flow sensing apparatuses and methods for high-perform...

Closed loop flow control of a HPLC constant flow pump to enable low...

Flow sensing apparatus used to monitor/provide feedback system to a...

Compliant-seal check valve

Variable resistance fluid controller

Sample injector system for liquid chromatography

Capillary interconnection fitting and method of holding capillary t...

Freeze-thaw valve that self-limits cryogenic agent usage

Closed loop flow control of a HPLC constant flow pump to enable low...

Flow sensing apparatus used to monitor/provide feedback to a split...

Method for using a hydraulic amplifier pump in ultrahigh pressure l...

Patents Applicationslast 30 patents

PARALLEL INSULATED CHROMATOGRAPHY COLUMNS

INSULATED SERIAL COLUMN CHROMATOGRAPHY ARRANGEMENTS AND SYSTEMS

MICRO SOLID PHASE EXTRACTION DEVICES AND METHODS

MICRO SOLID PHASE EXTRACTION DEVICES AND METHODS

MATCHING THERMALLY MODULATED VARIABLE RESTRICTORS TO CHROMATOGRAPHY...

METHOD AND APPARATUS FOR INJECTING A CHROMATOGRAPHIC SAMPLE

Mass Spectrometer Ion Source with Integrated Column

MANAGING FLUIDIC CONNECTIONS TO MICROFLUIDIC DEVICES

METHOD AND APPARATUS FOR INJECTING A CHROMATOGRAPHIC SAMPLE

MATCHING OF RESTRICTORS AND SEPARATION COLUMNS

METHOD AND APPARATUS FOR FLAME IONIZATION DETECTION FOR CHROMATOGRAPHY

INTEGRAL SAMPLE IDENTIFICATION THROUGHOUT A WORKFLOW PROCESS

PRESSURE SENSING AND FLOW CONTROL IN DIFFUSION-BONDED PLANAR DEVICE...

APPARATUS AND METHODS FOR CREATING A STATIC AND TRAVERSING THERMAL...

SYSTEMS AND METHODS OF COMPENSATION FOR CHROMATOGRAPHY COLUMN VOLUM...

MATCHING THERMALLY MODULATED VARIABLE RESTRICTORS TO CHROMATOGRAPHY...

INTEGRAL SAMPLE IDENTIFICATION THROUGHOUT A WORKFLOW PROCESS

SYSTEMS, DEVICES, AND METHODS FOR CONNECTING A CHROMATOGRAPHY SYSTE...

MICROFLUIDIC FLAME IONIZATION DETECTOR

MANAGING FLUIDIC CONNECTIONS TO MICROFLUIDIC DEVICES

ANALYSIS OF DRIED BLOOD SPOT SAMPLES IN A MICROFLUIDIC SYSTEM WITH...

Electrokinetically Controlled Calibrant Delivery

Closed Loop Flow Control Of A HPLC Constant Flow Pump To Enable Low...

VARIABLE-VOLUME INJECTION VALVE

PRESSURE SENSING AND FLOW CONTROL IN DIFFUSION-BONDED PLANAR DEVICE...

APPARATUS AND METHODS FOR PREPARATION AND ANALYSIS OF DRIED SAMPLES...

THERMAL-BASED FLOW SENSING APPARATUS AND METHOD FOR HIGH-PERFORMANC...

FLOW SENSORS AND FLOW SENSING METHODS WITH EXTENDED LINEAR RANGE

THERMAL-BASED FLOW SENSING APPARATUSES AND METHODS FOR HIGH-PERFORM...

Chromatography Apparatus Having An Integrated Core