Patents by Inventor Ginger D. Rothrock
Ginger D. Rothrock 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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Patent number: 10308864Abstract: The present disclosure relates to delivery and release systems, such as core-shell particles. An exemplary composition according to the disclosure can include a carrier element forming an outer shell that defines an inner core. The core can include a reactive agent that is adapted to react with the shell, particularly at an inner interface of the shell with the core materials. The reaction can provide an inside-out degradation of the shell and release of one or more materials therein. The reactive agent may be separated from the shell, such as using a phase change material (PCM). Upon reaching specific environmental conditions, the PCM can change so as the release the reactive agent for reaction with the shell. The systems can be used in various methods to deliver a material to various environments, including underground reservoirs.Type: GrantFiled: May 9, 2018Date of Patent: June 4, 2019Assignee: RESEARCH TRIANGLE INSTITUTEInventors: Ginger D. Rothrock, Leah Marie Johnson
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Publication number: 20180258340Abstract: The present disclosure relates to delivery and release systems, such as core-shell particles. An exemplary composition according to the disclosure can include a carrier element forming an outer shell that defines an inner core. The core can include a reactive agent that is adapted to react with the shell, particularly at an inner interface of the shell with the core materials. The reaction can provide an inside-out degradation of the shell and release of one or more materials therein. The reactive agent may be separated from the shell, such as using a phase change material (PCM). Upon reaching specific environmental conditions, the PCM can change so as the release the reactive agent for reaction with the shell. The systems can be used in various methods to deliver a material to various environments, including underground reservoirs.Type: ApplicationFiled: May 9, 2018Publication date: September 13, 2018Inventors: Ginger D. Rothrock, Leah Marie Johnson
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Patent number: 9994759Abstract: The present disclosure relates to delivery and release systems, such as core-shell particles. An exemplary composition according to the disclosure can include a carrier element forming an outer shell that defines an inner core. The core can include a reactive agent that is adapted to react with the shell, particularly at an inner interface of the shell with the core materials. The reaction can provide an inside-out degradation of the shell and release of one or more materials therein. The reactive agent may be separated from the shell, such as using a phase change material (PCM). Upon reaching specific environmental conditions, the PCM can change so as the release the reactive agent for reaction with the shell. The systems can be used in various methods to deliver a material to various environments, including underground reservoirs.Type: GrantFiled: August 12, 2014Date of Patent: June 12, 2018Assignee: Research Triangle InstituteInventors: Ginger D. Rothrock, Leah Marie Johnson
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Patent number: 9567841Abstract: The present disclosure relates to cementitious fluids comprising additives configured to form a permeable cement matrix after curing of the cement. The cementitious fluids can comprise a cementitious medium (e.g., a cement slurry) with a plurality of fibers dispersed therein. The fibers can be hollow, can be porous, and can be degradable. The cementitious fluid particularly can be used in methods of stimulating hydrocarbon bearing formations. Specifically, the cementitious fluid can be injected into the formation to form or enlarge a fracture, and the fluid can be cured to form the permeable cement matrix, said permeability arising from a loosely assembled tubular network and/or passages remaining after degradation of the fibers.Type: GrantFiled: June 29, 2015Date of Patent: February 14, 2017Assignee: Research Triangle InstituteInventors: Ginger D. Rothrock, Vikram Rao, Vijay Gupta, Leah Johnson
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Publication number: 20160186044Abstract: The present disclosure relates to delivery and release systems, such as core-shell particles. An exemplary composition according to the disclosure can include a carrier element forming an outer shell that defines an inner core. The core can include a reactive agent that is adapted to react with the shell, particularly at an inner interface of the shell with the core materials. The reaction can provide an inside-out degradation of the shell and release of one or more materials therein. The reactive agent may be separated from the shell, such as using a phase change material (PCM). Upon reaching specific environmental conditions, the PCM can change so as the release the reactive agent for reaction with the shell. The systems can be used in various methods to deliver a material to various environments, including underground reservoirs.Type: ApplicationFiled: August 12, 2014Publication date: June 30, 2016Inventors: Ginger D. Rothrock, Leah Marie Johnson
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Publication number: 20160003022Abstract: The present disclosure relates to cementitious fluids comprising additives configured to form a permeable cement matrix after curing of the cement. The cementitious fluids can comprise a cementitious medium (e.g., a cement slurry) with a plurality of fibers dispersed therein. The fibers can be hollow, can be porous, and can be degradable. The cementitious fluid particularly can be used in methods of stimulating hydrocarbon bearing formations. Specifically, the cementitious fluid can be injected into the formation to form or enlarge a fracture, and the fluid can be cured to form the permeable cement matrix, said permeability arising from a loosely assembled tubular network and/or passages remaining after degradation of the fibers.Type: ApplicationFiled: June 29, 2015Publication date: January 7, 2016Inventors: Ginger D. Rothrock, Vikram Rao, Vijay Gupta, Leah Johnson
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Publication number: 20140239164Abstract: The present disclosure provides sensing systems and methods that are useful for monitoring materials (e.g., cement) via light diffusion to identify characteristics thereof and changes therein. The systems can utilize a light source, a light sensor, and light transmitting members combined with the material to be monitored. In use, light from the light source can be allowed to scatter through the material via the light transmitting members for detection by the light sensor. The data regarding the light transfer can be transmitted utilizing a communication interface and can be analyzed using data processing equipment. The systems and methods may particularly be utilized in monitoring the reinforcing cement positioned between the casing and the formation in an oil well.Type: ApplicationFiled: February 26, 2014Publication date: August 28, 2014Applicant: Research Triangle InstituteInventors: Ginger D. Rothrock, Mark W. Roberson, Vijay Gupta, Michele L. Ostraat, David F. Myers
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Patent number: 8685461Abstract: Nanosized particles are molded from granules of organic substances in nano-scale molds. The nano-scale molds can be fabricated from non-wetting, low surface energy polymeric materials. The nanosized particles can be virtually any shape, are typically less than 500 micrometers in a broadest dimension, and can include pharmaceutical compositions, biologic drugs, drug compositions, organic materials, and the like.Type: GrantFiled: June 11, 2013Date of Patent: April 1, 2014Assignee: The University of North Carolina at Chapel HillInventors: Ginger D. Rothrock, Benjamin W. Maynor
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Publication number: 20130344118Abstract: Nanosized particles are molded from granules of organic substances in nano-scale molds. The nano-scale molds can be fabricated from non-wetting, low surface energy polymeric materials. The nanosized particles can be virtually any shape, are typically less than 500 micrometers in a broadest dimension, and can include pharmaceutical compositions, biologic drugs, drug compositions, organic materials, and the like.Type: ApplicationFiled: June 11, 2013Publication date: December 26, 2013Inventors: Ginger D. Rothrock, Benjamin W. Maynor
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Publication number: 20100190654Abstract: A nanoarray includes a fluoropolymer array defining a plurality of cavities where each cavity has a predetermined shape and is less than about 5 micrometers in a broadest cross-sectional dimension. The nanoarray also includes a composition discretely contained in each cavity, where the composition includes a linking group for coupling with a modifying group. The nanoarray can be fabricated from fluoropolyether or perfluoropolyether.Type: ApplicationFiled: December 5, 2007Publication date: July 29, 2010Applicant: Liquidia Technologies , Inc.Inventors: Ginger D. Rothrock, Robert L. Henn
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Publication number: 20090304992Abstract: Materials and methods for performing microscopy include applying a curable liquid polymer to a surface or structure to be characterized and polymerizing the polymer. The polymerized polymer represents a mold of the structure or surface and can be analyzed without disrupting the surface or structure needing characterization. The materials also do not leave a residue or otherwise alter a surface chemistry of the structure characterized.Type: ApplicationFiled: August 8, 2006Publication date: December 10, 2009Inventors: Joseph M. Desimone, Ginger D. Rothrock
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Publication number: 20090266415Abstract: A photovoltaic device includes an encapsulation layer fabricated from an elastomeric material, such as for example a perfluoropolyether having favorable optical properties, gas permeable, scratch resistant, conformal liquid material. The encapsulation layer can also include a structured surface for manipulating and trapping light incident on the photovoltaic device.Type: ApplicationFiled: June 27, 2006Publication date: October 29, 2009Inventors: Ginger D. Rothrock, Jason P. Rolland, Joseph M. Desimone
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Publication number: 20080251976Abstract: A spacer for forming a gap in a device includes a predetermined geometric shape and is less than about 500 micrometers in a broadest dimension. A plurality of spacers can be fabricated where each spacer of the plurality of spacers has a predetermined geometric shape, the same predetermined geometric shape, or a variety of predetermined geometric shapes. The spacers of the plurality of spacers can also include a polydispersity of about 1.0005. The spacer can be positioned between two components of a device to provide accurate spacing of the components.Type: ApplicationFiled: April 13, 2007Publication date: October 16, 2008Inventors: Jason P. Rolland, Ginger D. Rothrock
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Publication number: 20080181958Abstract: Nanosized particles are molded from granules of organic substances in nano-scale molds. The nano-scale molds can be fabricated from non-wetting, low surface energy polymeric materials. The nanosized particles can be virtually any shape, are typically less than 500 micrometers in a broadest dimension, and can include pharmaceutical compositions, biologic drugs, drug compositions, organic materials, and the like.Type: ApplicationFiled: July 17, 2007Publication date: July 31, 2008Inventors: Ginger D. Rothrock, Benjamin W. Maynor