Patents by Inventor Derin C. Walters

Derin C. Walters 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).

  • Publication number: 20200080073
    Abstract: An electroporation apparatus and its novel chamber with inlet ports for mixing cells and exogenous material. The inlet ports are oriented in nonparallel to each other immediately adjacent at the same top comer of the first wall of the chamber. The mixing chamber comprises successive wall sections, two curved walls at its bottom; the first curved comer is on the same side of the chamber where the liquids enter the chamber, and directs the liquids to the second curved comer at the opposing side of the chamber, which in turn further redirects the mixing to the first curved corner. The direction of the liquid flow mixture change direction at least twice into the mixing chamber.
    Type: Application
    Filed: October 17, 2019
    Publication date: March 12, 2020
    Applicant: CELLECTIS S. A.
    Inventors: Alan D. King, Richard E. Walters, Stephen B. Deitz, Donald J. Rodis, Derin C. Walters
  • Patent number: 10494626
    Abstract: An electroporation apparatus and its novel chamber with inlet ports for mixing cells and exogenous material. The inlet ports are oriented in nonparallel to each other immediately adjacent at the same top corner of the first wall of the chamber. The mixing chamber comprises successive wall sections, two curved walls at its bottom; the first curved corner is on the same side of the chamber where the liquids enter the chamber, and directs the liquids to the second curved corner at the opposing side of the chamber which in turn further redirects the mixing to the first curved corner. The direction of the liquid flow mixture change direction at least twice into the mixing chamber.
    Type: Grant
    Filed: May 11, 2011
    Date of Patent: December 3, 2019
    Assignee: CELLECTIS S.A.
    Inventors: Alan D King, Stephen B Deitz, Donald J Rodis, Jr., Derin C Walters, Robert J Walters
  • Patent number: 8979818
    Abstract: An object of the invention is to provide a method and apparatus for the delivery of polynucleotide vaccines into mammalian skin cells to increase T cell response and to reduce pain and discomfort due to long electric waveform application and due to muscle contractions. The method for the delivery of polynucleotide vaccines into mammalian skin cells includes the steps of: (a.) administering a polynucleotide vaccine into the skin at an administration site, (b.) applying a needle electrode to the skin in the vicinity to the administration site, and (c.) applying a sequence of at least three single, operator-controlled, independently programmed, narrow interval electrical waveforms, which have pulse intervals that are less than 100 milliseconds, to deliver the polynucleotide vaccine into the skin cells by electroporation.
    Type: Grant
    Filed: March 15, 2011
    Date of Patent: March 17, 2015
    Assignee: Cellectis
    Inventors: Derin C. Walters, Alan D. King, Anna-Karin Roos, Robert J. Walters
  • Publication number: 20130123744
    Abstract: The invention provides a method and apparatus for the delivery of polynucleotide cancer vaccines to increase T cell response and reduce pain due to long electric waveform application and muscle contractions. The method includes the steps of: (a.) administering a polynucleotide cancer vaccine into the skin at an administration site, (b.) applying a needle electrode to the skin in the vicinity of the administration site, and (c.) applying a sequence of at least three electrical waveforms to deliver the polynucleotide cancer vaccine into skin cells by electroporation. The sequence has at least one of the following characteristics {1} at least two of the waveforms differ in amplitude, {2} at least two of the waveforms differ in width, and (3) a first waveform interval for a first set of two of the waveforms is different from a second waveform interval for a second set of two of the waveforms.
    Type: Application
    Filed: March 26, 2010
    Publication date: May 16, 2013
    Inventors: Derin C. Walters, Alan D. King, Anna-Karin Maltais (formerly Anna-Karin Roos), Britta Wahren, Kristian Haller (formerly Kristian Hallermalm), Andreas Brave, Robert J. Walters
  • Publication number: 20110282265
    Abstract: An object of the invention is to provide a method and apparatus for the delivery of polynucleotide vaccines into mammalian skin cells to increase T cell response and reduce pain and discomfort due to long electric waveform application and due to muscle contractions. The method includes administering a polynucleotide vaccine into the skin at an administration site, (b) applying a needle electrode to the skin in the vicinity to the administration site, and (c) applying a sequence of at least three single, operator-controlled, independently programmed, narrow interval electrical waveforms, which have pulse intervals that are less than 100 milliseconds, to deliver the 15 polynucleotide vaccine into the skin cells by electroporation.
    Type: Application
    Filed: May 20, 2008
    Publication date: November 17, 2011
    Inventors: Richard E. Walters, Derin C. Walters, Alan D. King, Anna-Karin Roos
  • Publication number: 20110166501
    Abstract: An object of the invention is to provide a method and apparatus for the delivery of polynucleotide vaccines into mammalian skin cells to increase T cell response and to reduce pain and discomfort due to long electric waveform application and due to muscle contractions. The method for the delivery of polynucleotide vaccines into mammalian skin cells includes the steps of: (a.) administering a polynucleotide vaccine into the skin at an administration site, (b.) applying a needle electrode to the skin in the vicinity to the administration site, and (c.) applying a sequence of at least three single, operator-controlled, independently programmed, narrow interval electrical waveforms, which have pulse intervals that are less than 100 milliseconds, to deliver the polynucleotide vaccine into the skin cells by electroporation.
    Type: Application
    Filed: March 15, 2011
    Publication date: July 7, 2011
    Inventors: Richard E. Walters, Derin C. Walters, Alan D. King, Anna-Karin Roos
  • Patent number: 7689641
    Abstract: Method, apparatus, and program means for performing a packed multiply high with round and shift operation. The method of one embodiment comprises receiving a first operand having a first set of L data elements. A second operand having a second set of L data elements is received. L pairs of data elements are multiplied together to generate a set of L products. Each of the L pairs includes a first data element from the first set of L data element and a second data element from a corresponding data element position of the second set of L data elements. Each of the L products are rounded to generate L rounded values. Each of said L rounded values are scaled to generate L scaled values. Each of the L scaled values are truncated for storage at a destination. Each truncated value is to be stored at a data element position corresponding to its pair of data elements.
    Type: Grant
    Filed: June 30, 2003
    Date of Patent: March 30, 2010
    Assignee: Intel Corporation
    Inventors: James C. Abel, Derin C. Walters, Jonathan J. Tyler
  • Patent number: 6916656
    Abstract: An object of the invention is to provide a method of treating biological cells prior to subjecting the biological cells to cell fusion pulses which includes the step of treating the biological cells with pre-fusion electric field waveforms which change amplitude in a non-linear way with respect to time, such that the biological cells are first aligned with a relatively low amplitude, long duration pre-fusion electric field waveform and then compressed with a relatively high amplitude, short duration pre-fusion electric field waveform resulting in increased cell membrane contact prior to being subjected to cell fusion. The non-linear pre-fusion electric field waveforms can change in a stepped way, in a continuous way, in a sigmoidal way, with step-wise increasing waveforms in adjacent steps, with step-wise increasing waveforms in non-adjacent steps, and in accordance with non-linear algorithms.
    Type: Grant
    Filed: April 5, 2002
    Date of Patent: July 12, 2005
    Assignee: Cyto Pulse Sciences, Inc.
    Inventors: Richard E. Walters, Derin C. Walters, Alan D. King
  • Publication number: 20040267857
    Abstract: Method, apparatus, and program means for performing a packed multiply high with round and shift operation. The method of one embodiment comprises receiving a first operand having a first set of L data elements. A second operand having a second set of L data elements is received. L pairs of data elements are multiplied together to generate a set of L products. Each of the L pairs includes a first data element from the first set of L data element and a second data element from a corresponding data element position of the second set of L data elements. Each of the L products are rounded to generate L rounded values. Each of said L rounded values are scaled to generate L scaled values. Each of the L scaled values are truncated for storage at a destination. Each truncated value is to be stored at a data element position corresponding to its pair of data elements.
    Type: Application
    Filed: June 30, 2003
    Publication date: December 30, 2004
    Inventors: James C. Abel, Derin C. Walters, Jonathan J. Tyler
  • Patent number: 6653114
    Abstract: The object of the invention is to provide a method and apparatus for treating membrane-containing material with electrical fields, in vitro, and with an added treating substance. With the method, a plurality of electrodes are arrayed around the material to be treated and are connected to outputs of an electrode selection apparatus. Inputs of the electrode selection apparatus are connected to outputs of a pulse sequence generator. A treating substance is added to the membrane-containing material. Electrical pulses are applied to the electrode selection apparatus and are routed through the electrode selection apparatus in a predetermined, computer-controlled sequence to selected electrodes in the array of electrodes, whereby the membrane-containing material is treated with the added treating substance and with electrical fields. The routing of applied pulses through the electrode selection apparatus to selected electrodes can be done in an enormous number of ways.
    Type: Grant
    Filed: October 7, 2002
    Date of Patent: November 25, 2003
    Inventors: Richard E. Walters, Alan D. King, Derin C. Walters
  • Publication number: 20030159943
    Abstract: The object of the invention is to provide a method and apparatus for treating membrane-containing material with electrical fields, in vitro, and with an added treating substance. With the method, a plurality of electrodes are arrayed around the material to be treated and are connected to outputs of an electrode selection apparatus. Inputs of the electrode selection apparatus are connected to outputs of a pulse sequence generator. A treating substance is added to the membrane-containing material. Electrical pulses are applied to the electrode selection apparatus and are routed through the electrode selection apparatus in a predetermined, computer-controlled sequence to selected electrodes in the array of electrodes, whereby the membrane-containing material is treated with the added treating substance and with electrical fields. The routing of applied pulses through the electrode selection apparatus to selected electrodes can be done in an enormous number of ways.
    Type: Application
    Filed: October 7, 2002
    Publication date: August 28, 2003
    Applicant: Cyto Pulse Sciences, Inc.
    Inventors: Richard E. Walters , Alan D. King , Derin C. Walters
  • Publication number: 20030070939
    Abstract: The object of the invention is to provide a method and apparatus for treating membrane-containing material with electrical fields, in vitro, and with an added treating substance. With the method, a plurality of electrodes are arrayed around the material to be treated and are connected to outputs of an electrode selection apparatus. Inputs of the electrode selection apparatus are connected to outputs of a pulse sequence generator. A treating substance is added to the membrane-containing material. Electrical pulses are applied to the electrode selection apparatus and are routed through the electrode selection apparatus in a predetermined, computer-controlled sequence to selected electrodes in the array of electrodes, whereby the membrane-containing material is treated with the added treating substance and with electrical fields. The routing of applied pulses through the electrode selection apparatus to selected electrodes can be done in an enormous number of ways.
    Type: Application
    Filed: October 7, 2002
    Publication date: April 17, 2003
    Inventors: Richard E. Walters, Alan D. King, Derin C. Walters
  • Patent number: 6117660
    Abstract: The object of the invention is to provide a method and apparatus for treating membrane containing material with electrical fields and with an added treating substance. With the method, a plurality of electrodes (121-128) are arrayed around the material to be treated and are connected to outputs of an electrode selection apparatus (110). Inputs of the electrode selection apparatus are connected to outputs of an agile pulse sequence generator. A treating substance is added to the membrane-containing material. Electrical pulses are applied to the electrode selection apparatus and are routed through the electrode selection apparatus in a predetermined, computer-controlled sequence to selected electrodes in the array of electrodes, whereby the membrane containing material is treated with the added treating substance and with electrical fields of sequentially varying directions.
    Type: Grant
    Filed: February 10, 1999
    Date of Patent: September 12, 2000
    Assignee: CytoPulse Sciences, Inc.
    Inventors: Richard E. Walters, Alan D. King, Derin C. Walters