Patents by Inventor Kevin Edgar

Kevin Edgar 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).

  • Patent number: 12091484
    Abstract: Described herein are block copolymers that can be used as compatibilizers. The block copolymers can be graft block or triblock copolymers. The block copolymers can include a polysaccharide or a polyester and a polyolefin. Also described herein are polymer blends that can include and be made using the block copolymers described herein.
    Type: Grant
    Filed: March 18, 2019
    Date of Patent: September 17, 2024
    Assignee: Virginia Tech Intellectual Properties, Inc.
    Inventors: John Matson, Kyle Arrington, Kevin Edgar, Junyi Chen
  • Patent number: 11702888
    Abstract: A method of performing a well bore operation in a well bore includes connecting a window mill to a whipstock connector forming a tubular section, supporting a tool below the whipstock connector, running the window mill, the whipstock connector, and the tool into the well bore, and axially loading the tool to perform the well bore operation.
    Type: Grant
    Filed: June 24, 2021
    Date of Patent: July 18, 2023
    Assignee: BAKER HUGHES OILFIELD OPERATIONS LLC
    Inventors: Philip M. Gregurek, Kevin Edgar Harrington, Gregory Hern, Jason Cullum, Valerie Ferdin, Gaute Grindhaug, Morten Eidem, Jonathan Cotten
  • Patent number: 11421496
    Abstract: A window cutting system includes a whipstock connector including an inner surface having at least one projection. A window mill is connected to the whipstock connector. The window mill includes a body having a connector member, a tip portion, a recess formed on an outer surface of the body, an axial passage extending from the connector member toward the tip portion and a radial passage extending outwardly from the axial passage. A pin is arranged in the radial passage and selectively extending into the recess.
    Type: Grant
    Filed: March 25, 2020
    Date of Patent: August 23, 2022
    Assignee: BAKER HUGHES OILFIELD OPERATIONS LLC
    Inventors: Tuan Nguyen, Philip M. Gregurek, Kevin Edgar Harrington, Gregory Hern, Christopher Michalec, Gaute Grindhaug, Morten Eidem
  • Patent number: 11384161
    Abstract: A method for the synthesis of alkyl ?-carboxy(hydroxyethyl) polysaccharides is described. The method includes methylating or ethylating a polysaccharide or providing a methylated or ethylated polysaccharide, hydroxyethylating the methylated or ethylated polysaccharide, and oxidizing the hydroxyethylated polysaccharide to form the ?-carboxy(hydroxyethyl) polysaccharide. A method for the synthesis of oxidized polysaccharides is also described. The method includes hydroxypropylating a polysaccharide and oxidizing the hydroxypropylated polysaccharides. A method for the production of a solid capable of forming a hydrogel is also described. The method includes combining a first solution comprising an oxidized oligo(hydroxypropyl) polysaccharide bearing one or more ketone groups with a second solution comprising an amine substituted polysaccharide to form a third solution, and removing solvent from the third solution to form the solid, or adding an additional solvent to the third solution to precipitate the solid.
    Type: Grant
    Filed: January 11, 2019
    Date of Patent: July 12, 2022
    Assignee: Virginia Tech Intellectual Properties, Inc.
    Inventors: Kevin Edgar, Brittany L. B. Nichols, Junyi Chen, Charles Frazier, Ann Norris
  • Patent number: 11162315
    Abstract: A window cutting system includes a window mill having a body including a connector member, a tip portion, and a plurality of blades arranged between the connector member and the tip portion. Each of the plurality of blades supports a plurality of cutting elements. A lug pocket is formed in at least one of the plurality of blades adjacent the plurality of cutting elements. A whipstock connector detachably coupled to the window mill. The whipstock connector including an outer surface and an inner surface, and at least one lug projecting radially inwardly from the inner surface. The at least one lug is selectively received by the lug pocket to connect the whipstock connector to the window mill.
    Type: Grant
    Filed: March 25, 2020
    Date of Patent: November 2, 2021
    Assignee: BAKER HUGHES OILFIELD OPERATIONS LLC
    Inventors: Kevin Edgar Harrington, Gregory Hern, Philip M. Gregurek, Jason Cullum, Valerie Ferdin, Gaute Grindhaug, Morten Eidem
  • Publication number: 20210317705
    Abstract: A method of performing a well bore operation in a well bore includes connecting a window mill to a whipstock connector forming a tubular section, supporting a tool below the whipstock connector, running the window mill, the whipstock connector, and the tool into the well bore, and axially loading the tool to perform the well bore operation.
    Type: Application
    Filed: June 24, 2021
    Publication date: October 14, 2021
    Applicant: Baker Hughes Oilfield Operations LLC
    Inventors: Philip M. Gregurek, Kevin Edgar Harrington, Gregory Hern, Jason Cullum, Valerie Ferdin, Gaute Grindhaug, Morten Eidem, Jonathan Cotten
  • Publication number: 20210301615
    Abstract: A window cutting system includes a window mill having a body including a connector member, a tip portion, and a plurality of blades arranged between the connector member and the tip portion. Each of the plurality of blades supports a plurality of cutting elements. A lug pocket is formed in at least one of the plurality of blades adjacent the plurality of cutting elements. A whipstock connector detachably coupled to the window mill. The whipstock connector including an outer surface and an inner surface, and at least one lug projecting radially inwardly from the inner surface. The at least one lug is selectively received by the lug pocket to connect the whipstock connector to the window mill.
    Type: Application
    Filed: March 25, 2020
    Publication date: September 30, 2021
    Applicant: Baker Hughes Oilfield Operations LLC
    Inventors: Kevin Edgar Harrington, Gregory Hern, Philip M. Gregurek, Jason Cullum, Valerie Ferdin, Gaute Grindhaug, Morten Eidem
  • Publication number: 20210047440
    Abstract: A method for the synthesis of alkyl ?-carboxy(hydroxyethyl) polysaccharides is described. The method includes methylating or ethylating a polysaccharide or providing a methylated or ethylated polysaccharide, hydroxyethylating the methylated or ethylated polysaccharide, and oxidizing the hydroxyethylated polysaccharide to form the ?-carboxy(hydroxyethyl) polysaccharide. A method for the synthesis of oxidized polysaccharides is also described. The method includes hydroxypropylating a polysaccharide and oxidizing the hydroxypropylated polysaccharides. A method for the production of a solid capable of forming a hydrogel is also described. The method includes combining a first solution comprising an oxidized oligo(hydroxypropyl) polysaccharide bearing one or more ketone groups with a second solution comprising an amine substituted polysaccharide to form a third solution, and removing solvent from the third solution to form the solid, or adding an additional solvent to the third solution to precipitate the solid.
    Type: Application
    Filed: January 11, 2019
    Publication date: February 18, 2021
    Inventors: Kevin Edgar, Brittany L. B. Nichols, Junyi Chen, Charles Frazier, Lynne S. Taylor, Laura I. Mosquera-Giraldo, Ann Norris, Benjamin Adams
  • Publication number: 20210002406
    Abstract: Described herein are block copolymers that can be used as compatibilizers. The block copolymers can be graft block or triblock copolymers. The block copolymers can include a polysaccharide or a polyester and a polyolefin. Also described herein are polymer blends that can include and be made using the block copolymers described herein.
    Type: Application
    Filed: March 18, 2019
    Publication date: January 7, 2021
    Inventors: John MATSON, Kyle ARRINGTON, Kevin EDGAR, Junyi CHEN
  • Patent number: 10408025
    Abstract: A downhole setting tool and method of using the setting tool, the setting tool including a firing head, an igniter, a housing connected to the firing head, a power charge positioned within a chamber of the housing, and a connector connecting a portion of the power charge to the firing head. The connector may be connected to the uphole end of the power charge. The connector may connect the power charge to an adapter that connects the power charge to the firing head. The connector may be a ring having an outer engagement feature that engages the adapter and an inner engagement feature that engages the power charge. The connector may be a collet including an outer engagement feature that engages the adapter and a plurality of fingers that engage the power charge. The ignitor is used to detonate the power charge to set a device within a wellbore.
    Type: Grant
    Filed: July 12, 2017
    Date of Patent: September 10, 2019
    Assignee: Baker Hughes, a GE company, LLC
    Inventors: Kevin Edgar Harrington, Gregory Hern, Kent Meyer
  • Patent number: 10365079
    Abstract: A downhole setting tool having a first housing, a second housing having a chamber connected to the first housing, a power charge positioned within the chamber, an igniter connected to a portion of the power charge, and an ignition device connected to the igniter. The ignition device is configured to actuate upon receipt of an electrical signal. The ignition device is configured to ignite the igniter. The ignition device may rapidly heat up or apply a voltage or current to the igniter. The igniter is configured to cause the detonation of the power charge to set a device within a wellbore. The igniter may be embedded into the power charge with the ignition device positioned within a cavity in the igniter. The igniter may be a pyrotechnic material or may release high energy heat upon application of voltage or current.
    Type: Grant
    Filed: November 1, 2017
    Date of Patent: July 30, 2019
    Assignee: Baker Hughes, a GE company, LLC
    Inventors: Kevin Edgar Harrington, Larry Palmer, Zhiyue Xu, YingQing Xu, Lei Zhao, Kent Meyer
  • Publication number: 20190128657
    Abstract: A downhole setting tool having a first housing, a second housing having a chamber connected to the first housing, a power charge positioned within the chamber, an igniter connected to a portion of the power charge, and an ignition device connected to the igniter. The ignition device is configured to actuate upon receipt of an electrical signal. The ignition device is configured to ignite the igniter. The ignition device may rapidly heat up or apply a voltage or current to the igniter. The igniter is configured to cause the detonation of the power charge to set a device within a wellbore. The igniter may be embedded into the power charge with the ignition device positioned within a cavity in the igniter. The igniter may be a pyrotechnic material or may release high energy heat upon application of voltage or current.
    Type: Application
    Filed: November 1, 2017
    Publication date: May 2, 2019
    Inventors: Kevin Edgar Harrington, Larry Palmer, Zhiyue Xu, YingQing Xu, Lei Zhao, Kent Meyer
  • Publication number: 20190017356
    Abstract: A downhole setting tool and method of using the setting tool, the setting tool including a firing head, an igniter, a housing connected to the firing head, a power charge positioned within a chamber of the housing, and a connector connecting a portion of the power charge to the firing head. The connector may be connected to the uphole end of the power charge. The connector may connect the power charge to an adapter that connects the power charge to the firing head. The connector may be a ring having an outer engagement feature that engages the adapter and an inner engagement feature that engages the power charge. The connector may be a collet including an outer engagement feature that engages the adapter and a plurality of fingers that engage the power charge. The ignitor is used to detonate the power charge to set a device within a wellbore.
    Type: Application
    Filed: July 12, 2017
    Publication date: January 17, 2019
    Inventors: Kevin Edgar Harrington, Gregory Hern, Kent Meyer
  • Patent number: 9624311
    Abstract: Embodiments of the invention provide regioselectively substituted carbohydrate and polysaccharide derivatives, such as cellulose esters, and methods for preparing them. Particular methods of the invention include deacylation of esters using tetrabutylammonium fluoride to obtain selective substitution at desired hydroxyl position(s) of the ester. Preferred is deacylation of an ester, which shows selectivity for removal of acyl groups from the ester of the secondary alcohols at C-2 and C-3, and which affords cellulose-6-O-esters with high regioselectivity by a simple one-step process employing no protective groups. Inventive regioselectively substituted cellulose esters can be prepared by such methods to obtain esters with the following anhydroglucose repeating units: wherein R1, R2, and R3 are each independently chosen from a hydrogen atom, and, whether substituted or unsubstituted, branched or unbranched, an alkanoyl group, an aroyl group, and a heteroaroyl group.
    Type: Grant
    Filed: October 14, 2014
    Date of Patent: April 18, 2017
    Assignee: VTIP Intellectual Properties, Inc.
    Inventors: Kevin Edgar, Daiqiang Xu, Xueyan Zheng
  • Publication number: 20150038695
    Abstract: Embodiments of the invention provide regioselectively substituted carbohydrate and polysaccharide derivatives, such as cellulose esters, and methods for preparing them. Particular methods of the invention include deacylation of esters using tetrabutylammonium fluoride to obtain selective substitution at desired hydroxyl position(s) of the ester. Preferred is deacylation of an ester, which shows selectivity for removal of acyl groups from the ester of the secondary alcohols at C-2 and C-3, and which affords cellulose-6-O-esters with high regioselectivity by a simple one-step process employing no protective groups. Inventive regioselectively substituted cellulose esters can be prepared by such methods to obtain esters with the following anhydroglucose repeating units: wherein R1, R2, and R3 are each independently chosen from a hydrogen atom, and, whether substituted or unsubstituted, branched or unbranched, an alkanoyl group, an aroyl group, and a heteroaroyl group.
    Type: Application
    Filed: October 14, 2014
    Publication date: February 5, 2015
    Applicant: VIRGINIA TECH INTELLECTUAL PROPERTIES, INC.
    Inventors: Kevin Edgar, Daiqiang Xu, Xueyan Zheng
  • Publication number: 20070254859
    Abstract: At least one compound chosen from compounds of Formula I: a pharmaceutically acceptable salt or ester thereof, a solvate thereof, a chelate thereof, a non-covalent complex thereof, a prodrug thereof, and mixtures of any of the foregoing, wherein: n is a number from 1 to 900, wherein the individual units may be the same or different; W is chosen from alkyl, substituted alkyl, cycloalkyl, substituted cycloalkyl, aryl, substituted aryl, aralkyl and substituted aralkyl; each of R2, R3, R4 and R5 is independently chosen from —H, alkyl, substituted alkyl, cycloalkyl, substituted cycloalkyl, aryl, substituted aryl, aralkyl and substituted aralkyl; Z? is chosen from —O—, —N—, —NO—, —NR4—, —S—, —SO— and —SO2—, wherein R4 is defined as above; each of X, X?, Y and Z is independently chosen from —CR4R5—, —NH—, —NR4—, —NO—, —O—, —NOR4—, —S—, —SO—, —SO2—, wherein R4 and R5 are defined as above; R1 is chosen from a tocopherol, a steroid and a flavonoid; and R6 is chosen from any R1, alkyl, substituted alkyl, cycloalkyl
    Type: Application
    Filed: March 30, 2007
    Publication date: November 1, 2007
    Inventors: Michael Wempe, Kevin Edgar, John Hyatt, George Zima
  • Publication number: 20070178152
    Abstract: Disclosed herein are pharmaceutical compositions comprising carboxyalkylcellulose esters for delivery of pharmaceutically active substances having low solubility in a medium such as water, an acidic aqueous buffer, a neutral aqueous buffer, or a basic aqueous buffer. Also disclosed are methods for making pharmaceutical compositions and methods of administering the compositions.
    Type: Application
    Filed: November 3, 2006
    Publication date: August 2, 2007
    Inventors: Michael Shelton, Jessica Posey-Dowty, Kevin Edgar, Larry Lingerfelt, Sandra Klein, Shane Kirk, Jennifer Dressman
  • Publication number: 20070104787
    Abstract: Disclosed herein are pharmaceutical compositions comprising carboxyalkylcellulose esters for sustained delivery of pharmaceutically active substances. The composition comprises: at least one pharmaceutically active agent, and at least one carboxyalkyl cellulose ester comprising an anhydroglucose repeat unit having the structure: wherein: R1-R6 are each independently selected from —OH, —OC(O)(alkyl), and —O(CH2)xC(O)OH, and pharmaceutically acceptable salts thereof, wherein x ranges from 1-3, a degree of substitution per anhydroglucose of —OH ranges from 0.1 to 0.7, a degree of substitution per anhydroglucose of —C(O)(alkyl) ranges from 0.1 to 2.7, and a degree of substitution per anhydroglucose of —O(CH2)xC(O)OH ranges from 0.2 to 0.75, and wherein in pharmaceutically acceptable media, the composition exhibits sustained release of the at least one pharmaceutically active agent.
    Type: Application
    Filed: November 3, 2006
    Publication date: May 10, 2007
    Inventors: Jessica Posey-Dowty, Thelma Watterson, Kevin Edgar, Shane Kirk, Michael Welty, Jinghua Yuan, Michael Shelton, Larry Lingerfelt, Alan Wilson
  • Patent number: 7113989
    Abstract: A method of interacting with a managed data network entity is provided. The method includes a sequence of steps. A change in the operational state of the managed data network entity is detected. A CLI dictionary entry is retrieved form a CLI dictionary associated with the data network entity. Based on the retrieved CLI dictionary entry, CLI commands are extracted therefrom to configure the managed data network entity to reflect the detected change in the operational state. A CLI command sequence is built from the extracted CLI commands. Each CLI command in the command sequence is sent to the managed data network entity for execution. CLI command responses are monitored. Based on a successful execution of CLI commands send, subsequent CLI commands in the CLI command sequence are sent for execution. The solution provides automated configuration management of data network entities from different vendors when SNMP is not a viable option.
    Type: Grant
    Filed: April 5, 2002
    Date of Patent: September 26, 2006
    Assignee: Alcatel Canada Inc.
    Inventors: Christopher (Warren) Murray, David Wing-Chung Chan, Kevin Edgar Daniel Landry, Felix Katz, Chuong Ngoc Ngo, Attaullah Zabihi
  • Publication number: 20060165769
    Abstract: Compounds and compositions are disclosed for increasing the bioavailability of lipophilic drugs, and more specifically, to solubilizing lipophilic drugs using bioenhancers that cause no efflux inhibition or a desired degree of efflux inhibition. Methods of making and using such compositions are also disclosed.
    Type: Application
    Filed: September 29, 2005
    Publication date: July 27, 2006
    Inventors: John Hyatt, George Zima, Kevin Edgar, Lisa Navarro, Claus-Michael Lehr, Eva-Maria Collnot, Andy Singleton, Christiane Baldes, Ulrich Schafer, Michael Wempe