Patents by Inventor Ronald Christopher Chatelier
Ronald Christopher Chatelier has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Publication number: 20220365023Abstract: The invention disclosed herein relates to a dry sensor for measuring the concentration of an analyte in a liquid beverage sample. Described herein is a novel dry sensor which is able to receive a liquid sample and adjust the pH of the liquid to be suitable for assaying an analyte of interest without the need to add reagents to the sample and/or to perform manually timed operations and able to detect a redox reaction in the presence of a liquid sample. The meter disclosed herein, when connected to the sensor disclosed herein is able to adjust the temperature of the liquid to be suitable for the assay, apply a series of potentials, measure the current at several times, measure the diffusion coefficient of the limiting electrochemical species, calculate the concentration of one or more analytes, and rapidly provide the user with the required information on the liquid sample.Type: ApplicationFiled: September 30, 2020Publication date: November 17, 2022Inventors: Stanley Zhen-Jin TEO, Peter Michael NEWMAN, Ronald Christopher CHATELIER, Luke Robert COSSINS, Alastair M. Hodges
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Patent number: 8974658Abstract: An exemplary embodiment of the invention may include a method for electrochemically monitoring the mobility of particles in a fluid in response to an external field, the method may include monitoring an electrical characteristic of the fluid in an electrochemical cell, the fluid comprising particles that can be moved under the influence of an externally applied field; observing changes in the electrical characteristic caused by particle movement induced by the external field; and inferring a change in the physical state of the fluid from a change in the magnitude of the electrical characteristic observed.Type: GrantFiled: July 13, 2007Date of Patent: March 10, 2015Assignee: Universal Biosensors Pty LtdInventors: Peter Michael Newman, Ronald Christopher Chatelier
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Patent number: 8182765Abstract: A microfluidic device for transferring liquid from a first chamber to a second chamber is provided. The device has a first chamber; a second chamber; and a barrier between the first chamber and the second chamber, the barrier having least one opening fluidly connecting the first chamber to the second chamber, the at least one opening being sized such that a retention force, such as surface tension, keeps the liquid in the first chamber. The fluid is transferred from the first chamber to the second chamber when an initiation input such as fluid pressure is introduced to the liquid that is sufficient to overcome the retention force. The device may be a sensor strip.Type: GrantFiled: February 15, 2007Date of Patent: May 22, 2012Assignee: Universal Biosensors Pty LtdInventors: Alastair Mcindoe Hodges, Ronald Christopher Chatelier, Garry Chambers
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Publication number: 20100270178Abstract: Methods and apparatus for electrochemically determining an analyte concentration value in a physiological sample are disclosed. The methods include using a test strip in which two time-current transients are measured by a meter electrically connected to an electrochemical test strip. Integrative current values are derived from the time-current transients and used in the calculation of analyte concentration.Type: ApplicationFiled: July 2, 2010Publication date: October 28, 2010Applicant: LifeScan, Inc.Inventors: Sherry Guo, Alastair Hodges, Ronald Christopher Chatelier, Bin Zhang
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Publication number: 20090301901Abstract: An exemplary embodiment of the invention may include a method for electrochemically monitoring the mobility of particles in a fluid in response to an external field, the method may include monitoring an electrical characteristic of the fluid in an electrochemical cell, the fluid comprising particles that can be moved under the influence of an externally applied field; observing changes in the electrical characteristic caused by particle movement induced by the external field; and inferring a change in the physical state of the fluid from a change in the magnitude of the electrical characteristic observed.Type: ApplicationFiled: July 13, 2007Publication date: December 10, 2009Applicant: UNIVERSAL BIOSENSORS PTY LTD.Inventors: Peter Michael Newman, Ronald Christopher Chatelier
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Publication number: 20090305431Abstract: A microfluidic device for transferring liquid from a first chamber to a second chamber is provided. The device has a first chamber; a second chamber; and a barrier between the first chamber and the second chamber, the barrier having least one opening fluidly connecting the first chamber to the second chamber, the at least one opening being sized such that a retention force, such as surface tension, keeps the liquid in the first chamber. The fluid is transferred from the first chamber to the second chamber when an initiation input such as fluid pressure is introduced to the liquid that is sufficient to overcome the retention force. The device may be a sensor strip.Type: ApplicationFiled: February 15, 2007Publication date: December 10, 2009Applicant: Universal Biosensors Pty Ltd.Inventors: Alastair Mcindoe Hodges, Ronald Christopher Chatelier, Garry Chambers
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Publication number: 20080223732Abstract: There is disclosed a method of measuring formation of a barrier to restrict or reduce movement of an electroactive species. The method comprises providing an electrochemical cell having a working electrode and a counter electrode spaced from the working electrode, providing a subject component, a testing component and at least one electroactive species within the cell, the subject and testing components being intended to cause the formation of a barrier to restrict or reduce movement of an electroactive species, applying a potential between the working electrode and the counter electrode sufficient to produce a current proportional to the concentration of the electroactive species being measured, and measuring the current at the working electrode to obtain a measure of the formation of the barrier to restrict or reduce movement of the electroactive species.Type: ApplicationFiled: May 19, 2008Publication date: September 18, 2008Applicant: Universal Biosensors Pty Ltd.Inventors: Alastair McIndoe Hodges, Ronald Christopher Chatelier, Garry Chambers
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Patent number: 7403017Abstract: There is disclosed a method of measuring formation of a barrier to restrict or reduce movement of an electroactive species. The method comprises providing an electrochemical cell having a working electrode and a counter electrode spaced from the working electrode, providing a subject component, a testing component and at least one electroactive species within the cell, the subject and testing components being intended to cause the formation of a barrier to restrict or reduce movement of an electroactive species, applying a potential between the working electrode and the counter electrode sufficient to produce a current proportional to the concentration of the electroactive species being measured, and measuring the current at the working electrode to obtain a measure of the formation of the barrier to restrict or reduce movement of the electroactive species.Type: GrantFiled: January 16, 2004Date of Patent: July 22, 2008Assignee: Universal Biosensors PTY LimitedInventors: Alastair McIndoe Hodges, Ronald Christopher Chatelier, Garry Chambers
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Patent number: 6923978Abstract: The invention is directed to a composite material, especially a biomedical device, e.g. an ophthalmic device, preferably a contact lens, with one or more wettable surfaces capable of holding a continuous layer of aqueous fluid thereon which composite material comprises a bulk material and a hydrophilic coating characterized in that the hydrophilic coating consists of a carbohydrate attached covalently to reactive groups at the surface of the bulk material, either directly or via functional groups of an oligofunctional compound, said oligofunctional compound in turn having functional groups being capable of reacting with said reactive groups at the surface of the bulk material and with the carbohydrate, wherein said reactive groups are either inherently (a priori) present in the bulk material or wherein said reactive groups have been attached to the surface of the bulk material by a plasma surface preparation, as well as to a process of manufacture of such a composite material.Type: GrantFiled: February 19, 2003Date of Patent: August 2, 2005Assignee: Novartis AGInventors: Ronald Christopher Chatelier, Liming Dai, Hans Jörg Griesser, Sheng Li, Paul Zientek, Dieter Lohmann, Peter Chabrecek
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Patent number: 6623747Abstract: The invention is directed to a composite material, especially a biomedical device, e.g. an ophthalmic device, preferably a contact lens, with one or more wettable surfaces capable of holding a continous layer of aqueous fluid thereon which composite material comprises a bulk material and a hydrophilic coating characterized in that the hydrophilic coating consists of a carbohydrate attached covalently to reactive groups at the surface of the bulk material, either directly or via functional groups of an oligofunctional compound, said oligofunctional compound in turn having functional groups being capable of reacting with said reactive groups at the surface of the bulk material and with the carbohydrate, wherein said reactive groups are either inherently (a priori) present in the bulk material or wherein said reactive groups have been attached to the surface of the bulk material by a plasma surface preparation, as well as to a process of manufacture of such a composite material.Type: GrantFiled: February 14, 1996Date of Patent: September 23, 2003Assignee: Novartis AGInventors: Ronald Christopher Chatelier, Liming Dai, Hans Jörg Griesser, Sheng Li, Paul Zientek, Dieter Lohmann, Peter Chabrecek
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Publication number: 20030175325Abstract: The invention is directed to a composite material, especially a biomedical device, e.g. an ophthalmic device, preferably a contact lens, with one or more wettable surfaces capable of holding a continous layer of aqueous fluid thereon which composite material comprises a bulk material and a hydrophilic coating characterized in that the hydrophilic coating consists of a carbohydrate attached covalently to reactive groups at the surface of the bulk material, either directly or via functional groups of an oligofunctional compound, said oligofunctional compound in turn having functional groups being capable of reacting with said reactive groups at the surface of the bulk material and with the carbohydrate, wherein said reactive groups are either inherently (a priori) present in the bulk material or wherein said reactive groups have been attached to the surface of the bulk material by a plasma surface preparation, as well as to a process of manufacture of such a composite material.Type: ApplicationFiled: February 19, 2003Publication date: September 18, 2003Inventors: Ronald Christopher Chatelier, Liming Dai, Hans Jorg Griesser, Sheng Li, Paul Zientek, Dieter Lohmann, Peter Chabrecek
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Publication number: 20030008397Abstract: The present invention is directed to a process for coupling an adhesive glycoprotein to a surface of a bulk material comprising the following steps:Type: ApplicationFiled: July 17, 2002Publication date: January 9, 2003Inventors: Gerrit Jan Beumer, Ronald Christopher Chatelier, Hans Jorg Griesser, Graham Johnson, Keith Michael McLean
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Patent number: 6193865Abstract: Electrochemical cell having a porous substrate and a first and a second electrodes separated by an ion diffusion inhibiting partition is disclosed. The ion diffusion inhibiting partition between the two electrodes is defined by compressing the substrate and/or blocking pores of the substrate so as to inhibit but not entirely block ion diffusion between the two electrodes.Type: GrantFiled: March 15, 1999Date of Patent: February 27, 2001Assignee: USF Filtration and Separations Group, Inc.Inventors: Alastair McIndoe Hodges, Oddvar Johansen, Ronald Christopher Chatelier, Ian Andrew Maxwell, Thomas William Beck