Patents by Inventor Dennis M. Brown

Dennis M. Brown 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: 20190175541
    Abstract: The use of dianhydrogalactitol provides a novel therapeutic modality for the treatment of malignancies of the central nervous system in pediatric patients, including glioblastoma multiforme (GBM) high grade glioma, and medulloblastoma. Dianhydrogalactitol acts as an alkylating agent on DNA that creates N7 methylation and that can induce double-stranded breaks in DNA. Dianhydrogalactitol is effective in suppressing the growth of cancer stem cells and is active against tumors that are refractory to temozolomide, cisplatin, and tyrosine kinase inhibitors; the drug acts independently of the MGMT repair mechanism. Dianhydrogalactitol can be used together with other anti-neoplastic agents (e.g. cisplatin) and can possess additive or super-additive effects.
    Type: Application
    Filed: October 26, 2016
    Publication date: June 13, 2019
    Applicant: DelMar Pharmaceuticals, Inc.
    Inventors: Jeffrey A. Bacha, Dennis M. Brown, Anne Steinø
  • Patent number: 10304669
    Abstract: An RF generator in a dual frequency RF generation system. The RF generator detects IMD components resulting from interaction of the two frequencies. The IMD is reduced by adjusting the phase of the RF signal output by the RF generator. In various configurations, the IMD may also be reduced by applying a power adjustment value.
    Type: Grant
    Filed: January 21, 2018
    Date of Patent: May 28, 2019
    Assignee: MKS Instruments, Inc.
    Inventors: David J. Coumou, Dennis M. Brown, Eldridge M. Mount, IV
  • Publication number: 20190142783
    Abstract: The use of dianhydrogalactitol provides a novel therapeutic modality for the treatment of glioblastoma multiforme and medulloblastoma. Dianhydrogalactitol acts as an alkylating agent on DNA that creates N7 methylation. Dianhydrogalactitol is effective in suppressing the growth of cancer stem cells and is active against tumors that are refractory to temozolomide; the drug acts independently of the MGMT repair mechanism.
    Type: Application
    Filed: January 8, 2019
    Publication date: May 16, 2019
    Applicant: Del Mar Pharmaceuticals (BC) Ltd.
    Inventors: Dennis M. Brown, Jeffrey Bacha, Sandra Dunn
  • Patent number: 10269546
    Abstract: An RF generator in a dual frequency RF generation system. The RF generator detects IMD components resulting from interaction of the two frequencies. The IMD is reduced by adjusting the phase of the RF signal output by the RF generator. In various configurations, the IMD may also be reduced by applying a power adjustment value.
    Type: Grant
    Filed: January 21, 2018
    Date of Patent: April 23, 2019
    Assignee: MKS Instruments, Inc.
    Inventors: David J. Coumou, Dennis M. Brown, Eldridge M. Mount, IV
  • Patent number: 10229816
    Abstract: An eVC including coarse and fine tuning networks. The coarse tuning network includes a circuit: receiving a RF input signal from a RF generator; outputting a RF output signal to a reference terminal or load; and receiving a DC bias voltage. The circuit is switched between first and second states. A capacitance of the circuit is based on the DC bias voltage while in the first state and is not based on the DC bias voltage while in the second state. The fine tuning network is connected in parallel with the coarse tuning network and includes a varactor. The varactor includes: a first diode receiving the RF input signal; and a second diode connected in a back-to-back configuration with the first diode and outputting a RF output signal to the reference terminal or load. A capacitance of the varactor is based on a second received DC bias voltage.
    Type: Grant
    Filed: May 24, 2016
    Date of Patent: March 12, 2019
    Assignee: MKS Instruments, Inc.
    Inventors: David J. Coumou, Dennis M Brown, Aaron T. Radomski, Mariusz Oldziej, Yogendra K. Chawla, Daniel J. Lincoln
  • Publication number: 20190068158
    Abstract: A single input multiple output plasma control system includes a splitter that receives a single input and generates multiple outputs. Each output from the splitter is provided to a load. The splitter includes branch circuits connected between selected splitter outputs. The branch circuits control voltage, current, power, frequency, or phase between each branch to enable controlling a predetermined relationship between the voltage, current, power, impedance, frequency, or phase measured at each load.
    Type: Application
    Filed: August 24, 2018
    Publication date: February 28, 2019
    Inventors: David J. COUMOU, Dennis M. BROWN, Jeongseok JANG, Jin HUH
  • Patent number: 10201521
    Abstract: The use of dianhydrogalactitol provides a novel therapeutic modality for the treatment of glioblastoma multiforme and medulloblastoma. Dianhydrogalactitol acts as an alkylating agent on DNA that creates N7 methylation. Dianhydrogalactitol is effective in suppressing the growth of cancer stem cells and is active against tumors that are refractory to temozolomide; the drug acts independently of the MGMT repair mechanism.
    Type: Grant
    Filed: January 22, 2013
    Date of Patent: February 12, 2019
    Assignee: Del Mar Pharmaceuticals (BC) Ltd.
    Inventors: Dennis M. Brown, Jeffrey Bacha, Sandra Dunn
  • Publication number: 20190015379
    Abstract: The use of dianhydrogalactitol provides a novel therapeutic modality for the treatment of non-small-cell lung carcinoma (NSCLC) and for the treatment of glioblastoma multiforme (GBM). Dianhydrogalactitol acts as an alkylating agent on DNA that creates N7 methylation. Dianhydrogalactitol is effective in suppressing the growth of cancer stem cells and is active against tumors that are refractory to temozolomide; the drug acts independently of the MGMT repair mechanism.
    Type: Application
    Filed: November 10, 2015
    Publication date: January 17, 2019
    Inventors: Jeffrey A. BACHA, Dennis M. BROWN, Anne STEINØ, Shaun FOUSE
  • Patent number: 10138264
    Abstract: The invention relates to novel molecules and libraries thereof as well as methods for their production. Methods of producing the novel molecules include the cleaving of starting molecules into molecular subunits and the assembly of the subunits into novel recombined molecules.
    Type: Grant
    Filed: March 2, 2011
    Date of Patent: November 27, 2018
    Assignee: VALENT TECHNOLOGIES LLC
    Inventor: Dennis M. Brown
  • Publication number: 20180147178
    Abstract: The present invention describes methods and compositions for improving the therapeutic efficacy of therapeutic agents previously limited by suboptimal therapeutic performance by either improving efficacy as monotherapy or reducing side effects. Such methods and compositions are particularly applicable to substituted hexitols such as dianhydrogalactitol and diacetyldianhydrogalactitol.
    Type: Application
    Filed: January 24, 2018
    Publication date: May 31, 2018
    Inventor: Dennis M. BROWN
  • Publication number: 20180140571
    Abstract: The use of dianhydrogalactitol provides a novel therapeutic modality for the treatment of non-small-cell lung carcinoma (NSCLC) and ovarian cancer, as well as other types of malignancy, including brain metastases of NSCLC. Dianhydrogalactitol acts as an alkylating agent on DNA that creates N7 methylation. Dianhydrogalactitol is effective in suppressing the growth of cancer stem cells and is active against tumors that are refractory to temozolomide, cisplatin, and tyrosine kinase inhibitors; the drug acts independently of the MGMT repair mechanism. Dianhydrogalactitol can be used together with other anti-neoplastic agents and can possess additive or super-additive effects.
    Type: Application
    Filed: May 12, 2016
    Publication date: May 24, 2018
    Inventors: Jeffrey A. BACHA, Dennis M. BROWN, Anne STEINØ
  • Publication number: 20180071244
    Abstract: The use of dianhydrogalactitol provides a novel therapeutic modality for the treatment of malignancies of the central nervous system in pediatric patients, including glioblastoma multiforme (GBM) high grade glioma, and medulloblastoma. Dianhydrogalactitol acts as an alkylating agent on DNA that creates N7 methylation and that can induce double-stranded breaks in DNA. Dianhydrogalactitol is effective in suppressing the growth of cancer stem cells and is active against tumors that are refractory to temozolomide, cisplatin, and tyrosine kinase inhibitors; the drug acts independently of the MGMT repair mechanism. Dianhydrogalactitol can be used together with other anti-neoplastic agents (e.g. cisplatin) and can possess additive or super-additive effects.
    Type: Application
    Filed: June 15, 2017
    Publication date: March 15, 2018
    Inventors: Jeffrey A. BACHA, Dennis M. BROWN, Anne STEINØ
  • Patent number: 9908259
    Abstract: A control strategy for producing high quality extrudates, including the steps of monitoring the temperature of a ceramic precursor batch by measuring the temperature of the batch material either directly or indirectly by measuring the temperature of a component of the extruder proximate to the die and transmitting the temperature data to an extrusion control system which comprises a master controller (106), at least one slave controller (110) and an optional supervisory controller. The supervisory controller determines batch temperature setpoint (102) in order to achieve the desired temperatures for extruding a certain type of batch material based on real time temperature inputs and stored parameters such as batch composition, process throughput, extruder cooling capacity, and the like.
    Type: Grant
    Filed: October 30, 2009
    Date of Patent: March 6, 2018
    Assignee: Corning Incorporated
    Inventors: Dennis M Brown, Maryam Khanbaghi, Robert John Locker, Wenbin Qiu, Kenneth Charles Sariego, Conor James Walsh
  • Patent number: 9901563
    Abstract: The present invention describes methods and compositions for improving the therapeutic efficacy of therapeutic agents previously limited by suboptimal therapeutic performance by either improving efficacy as monotherapy or reducing side effects. Such methods and compositions are particularly applicable to substituted hexitols such as dianhydrogalactitol and diacetyldianhydrogalactitol.
    Type: Grant
    Filed: June 29, 2015
    Date of Patent: February 27, 2018
    Assignee: DELMAR PHARMACEUTICALS, INC.
    Inventor: Dennis M. Brown
  • Publication number: 20170345620
    Abstract: An eVC including coarse and fine tuning networks. The coarse tuning network includes a circuit: receiving a RF input signal from a RF generator; outputting a RF output signal to a reference terminal or load; and receiving a DC bias voltage. The circuit is switched between first and second states. A capacitance of the circuit is based on the DC bias voltage while in the first state and is not based on the DC bias voltage while in the second state. The fine tuning network is connected in parallel with the coarse tuning network and includes a varactor. The varactor includes: a first diode receiving the RF input signal; and a second diode connected in a back-to-back configuration with the first diode and outputting a RF output signal to the reference terminal or load. A capacitance of the varactor is based on a second received DC bias voltage.
    Type: Application
    Filed: May 24, 2016
    Publication date: November 30, 2017
    Inventors: David J. Coumou, Dennis M. Brown, Aaron T. Radomski, Mariusz Oldziej, Yogendra K. Chawla, Daniel J. Lincoln
  • Patent number: 9814693
    Abstract: The present invention is directed to methods for treatment of malignancies in companion animals employing dianhydrogalactitol, diacetyldianhydrogalactitol, and dibromodulcitol, as well as analogs and derivatives thereof, in addition to a method to improve the efficacy and/or reduce the side effects of the administration of a therapeutic agent selected from the group consisting of dianhydrogalactitol, a derivative of dianhydrogalactitol, diacetyldianhydrogalactitol, a derivative of diacetyldianhydrogalactitol, dibromodulcitol, and a derivative of dibromodulcitol to a veterinary subject, the method comprising the steps of: (1 (identifying at least one factor or parameter associated with the efficacy and/or occurrence of side effects of the administration of the therapeutic agent to the veterinary subject; and (2) modifying the factor or parameter to improve the efficacy and/or reduce the side effects of the administration of the therapeutic agent to the veterinary subject.
    Type: Grant
    Filed: May 3, 2013
    Date of Patent: November 14, 2017
    Assignee: DELMAR PHARMACEUTICALS, INC.
    Inventors: Jeffrey A. Bacha, Dennis M. Brown, William J. Garner
  • Publication number: 20170266150
    Abstract: The use of dianhydrogalactitol provides a novel therapeutic modality for the treatment of glioblastoma multiforme and medulloblastoma. Dianhydrogalactitol acts as an alkylating agent on DNA that creates N7 methylation. Dianhydrogalactitol is effective in suppressing the growth of cancer stem cells and is active against tumors that are refractory to temozolomide; the drug acts independently of the MGMT repair mechanism.
    Type: Application
    Filed: June 8, 2017
    Publication date: September 21, 2017
    Inventors: Jeffrey A. BACHA, Dennis M. BROWN, Sandra DUNN, Anne STEINØ
  • Patent number: 9630938
    Abstract: The present invention provides an efficient method of synthesizing and purifying dianhydrohexitols such as dianhydrogalactitol. In general, as applied to dianhydrogalactitol, the method comprises: (1) reacting dulcitol with a concentrated solution of hydrobromic acid at a temperature of about 80° C. to produce dibromogalactitol; (2) reacting the dibromogalactitol with potassium carbonate in t-butanol to produce dianhydrogalactitol; and (3) purifying the dianhydrogalactitol using a slurry of ethyl ether to produce purified dianhydrogalactitol. Another method produces dianhydrogalactitol from dulcitol; this method comprises: (1) reacting dulcitol with a reactant to convert the 1,6-hydroxy groups of dulcitol to an effective leaving group to generate an intermediate; and (2) reacting the intermediate with an inorganic weak base to produce dianhydrogalactitol through an intramolecular SN2 reaction. Other methods for the synthesis of dianhydrogalactitol from dulcitol are described.
    Type: Grant
    Filed: November 21, 2014
    Date of Patent: April 25, 2017
    Assignee: DELMAR PHARMACEUTICALS, INC.
    Inventors: Dennis M. Brown, Mike Tso-Ping Li
  • Publication number: 20160243077
    Abstract: The present invention describes methods and compositions for improving the therapeutic efficacy of therapeutically active agents previously limited by suboptimal therapeutic performance by either improving efficacy as monotherapy or reducing side effects. Such methods and compositions are particularly applicable to therapeutically active agents selected from the group consisting of: (i) indirubin; (ii) an analog of indirubin; (iii) a derivative of indirubin or of an analog of indirubin; and (iv) a pharmaceutical composition comprising indirubin, an analog of indirubin, or a derivative of indirubin or of an analog of indirubin, especially meisoindigo.
    Type: Application
    Filed: April 11, 2014
    Publication date: August 25, 2016
    Inventors: Dennis M. BROWN, Ian Nisbet
  • Publication number: 20160158186
    Abstract: Methods and compositions suitable for the treatment of malignancies such as recurrent glioma and progressive secondary brain tumor are disclosed. These methods employ a hexitol derivative such as dianhydrogalactitol, a derivative or analog of dianhydrogalactitol, diacetyldianhydrogalactitol, or a derivative or analog of diacetyldianhydrogalactitol. The compositions can include such hexitol derivatives.
    Type: Application
    Filed: April 9, 2015
    Publication date: June 9, 2016
    Inventors: Dennis M. BROWN, Kent C. SHIH, Anne STEINO, Richard SCHWARTZ, Sareth KANEKAL, Howard A. BURRIS, III, Jeffrey BACHA, William GARNER