Patents by Inventor Mohamed Ismail

Mohamed Ismail 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: 8188121
    Abstract: Novel aza analogues of dicationic terphenyl compounds for use in combating microbial infections are described. The compounds include those of Formula (III): wherein one of A1, Y1, and Z1 is N; Ar1 is phenylene; and Ar3 is a nitrogen-containing aromatic group.
    Type: Grant
    Filed: June 17, 2011
    Date of Patent: May 29, 2012
    Assignees: The University of North Carolina at Chapel Hill, Georgia State University Research Foundation, Inc.
    Inventors: Richard R. Tidwell, David W. Boykin, W. David Wilson, Reto Brun, Karl Werbovetz, Mohamed A. Ismail, Reem K. Arafa, Laixing Hu
  • Patent number: 8101636
    Abstract: Novel aza analogues of dicationic terphenyl compounds for use in combating microbial infections are described. Also described are processes for synthesizing the compounds.
    Type: Grant
    Filed: May 17, 2006
    Date of Patent: January 24, 2012
    Assignees: The University of North Carolina at Chapel Hill, Georgia State University Research Foundation, Inc.
    Inventors: Richard R. Tidwell, David W. Boykin, W. David Wilson, Reto Brun, Karl Werbovetz, Mohamed A. Ismail, Reem K. Arafa
  • Publication number: 20110257199
    Abstract: Novel dicationic terphenyl compounds and their aza analogues. Methods for combating microbial infections with novel dicationic terphenyl compounds and their aza analogues. Processes for synthesizing novel dicationic terphenyl compounds and their aza analogues.
    Type: Application
    Filed: June 17, 2011
    Publication date: October 20, 2011
    Inventors: Richard R. Tidwell, David W. Boykin, W. David Wilson, Reto Brun, Karl Werbovetz, Mohamed A. Ismail, Reem K. Arafa, Laixing Hu
  • Patent number: 7964619
    Abstract: Disclosed herein are novel dicationic teraryl compounds and their aza analogues, including compounds of Formula (IIe): wherein p and q are each 0 and each A, Y and Z is CR4. An exemplary compound of Formula (IIe) is: Methods for combating microbial infections, such as parasitic Leishmania species, with novel dicationic terphenyl compounds and their aza analogues are included. Processes for synthesizing novel dicationic terphenyl compounds and their aza analogues are disclosed along with methods for evaluation of the compounds as potential anti-protozoan agents.
    Type: Grant
    Filed: January 25, 2007
    Date of Patent: June 21, 2011
    Assignees: The University of North Carolina at Chapel Hill, Georgia State University Research Foundation, Inc.
    Inventors: Richard R. Tidwell, David W. Boykin, W. David Wilson, Reto Brun, Laixing Hu, Karl Werbovetz, Mohamed A. Ismail, Reem K. Arafa
  • Publication number: 20100331368
    Abstract: Novel dicationic 2,5-diaryl selenophene compounds are described. Also described are novel aza analogues of dicationic 2,5-diaryl thiophenes. The presently disclosed dicationic compounds exhibit in vitro activity versus Trypanosoma brucei rhodesiense, Plasmodium falciparum, and/or Leishmania donovani comparable to that of pentamidine and furamidine. Some of the novel dicationic compounds display good activity in vivo in a murine model of a Trypanosoma brucei rhodesiense infection.
    Type: Application
    Filed: October 17, 2008
    Publication date: December 30, 2010
    Inventors: Richard R. Tidwell, David W. Boykin, Chad E. Stephens, Mohamed A. Ismail, Arvind Kumar, W. David Wilson, Reto Brun, Karl Werbovetz
  • Publication number: 20100249175
    Abstract: Dicationic compounds that are highly selective for binding G-quadruplex DNA are described. Several compounds exhibit groove binding toward G-quadruplex DNA and in vitro and in vivo activity versus Trypanosoma brucei rhodesiense. The compounds represent novel drugs for the treatment of cancer, malaria, leishmania, and trypanosomiasis.
    Type: Application
    Filed: June 29, 2006
    Publication date: September 30, 2010
    Inventors: W. David Wilson, David W. Boykin, Elizabeth W. White, Mohamed A. Ismail, Arvind Kumar, Rupesh Nanjunda, Richard R. Tidwell
  • Publication number: 20100160263
    Abstract: The present invention pertains to novel 7,9-substituted tetracycline compounds. These tetracycline compounds can be used to treat numerous tetracycline compound-responsive states, such as bacterial infections and neoplasms, as well as other known applications for minocycline and tetracycline compounds in general, such as blocking tetracycline efflux and modulation of gene expression.
    Type: Application
    Filed: November 12, 2009
    Publication date: June 24, 2010
    Applicant: Paratek Pharmaceuticals, Inc.
    Inventors: Mark L. Nelson, Roger Frechette, Peter Viski, Mohamed Ismail, Todd Bowser, Laura McIntyre, Beena Bhatia, Paul Hawkins, Laxma Reddy Nagavelli, Karen Stepleton, Tad Warchol, Paul Sheahan
  • Patent number: 7691551
    Abstract: A layer on the reverse side of an imaging member provides excellent crack resistance to the imaging layer(s) on the front side. The crack-deterring backing layer can be a laminated self-adhesive, such as tape, or a coating. Because the crack-deterring backing layer is on the reverse side, it does not affect the electrical properties of the imaging member. Overcoat layers may be used whose function is limited to improved scratch resistance.
    Type: Grant
    Filed: June 26, 2007
    Date of Patent: April 6, 2010
    Assignee: Xerox Corporation
    Inventors: Mohamed Ismail Abu-Abed, Johann E. Junginger, Hany Aziz, Greg McGuire
  • Publication number: 20090306022
    Abstract: The present invention pertains, at least in part, to novel 7-substituted tetracycline compounds. These tetracycline compounds can be used to treat numerous tetracycline compound-responsive states, such as bacterial infections and neoplasms, as well as other known applications for minocycline and tetracycline compounds in general, such as blocking tetracycline efflux and modulation of gene expression.
    Type: Application
    Filed: June 9, 2009
    Publication date: December 10, 2009
    Applicants: Trustees of Tufts College, Paratek Pharmaceuticals, Inc.
    Inventors: Mark L. Nelson, Roger Frechette, Peter Viski, Mohamed Ismail, Todd Bowser, Beena Bhatia, David Messersmith, Laura McIntyre, Darrell Koza, Glen Rennie, Paul Sheahan, Paul Hawkins, Atul Verma, Tadeusz Warchol, Upul Bandarage
  • Patent number: 7517893
    Abstract: Novel dicationic bichalcophene compounds are described. The presently disclosed novel dicationic bichalcophene compounds exhibit in vitro activity versus Trypanosoma brucei rhodesiense, Plasmodium falciparum, or Leishmania donovani comparable to that of pentamidine and furamidine. Some of the novel dicationic bichalcophene compounds displayed good activity in vivo in a murine model of a Trypanosoma brucei rhodesiense infection.
    Type: Grant
    Filed: May 16, 2006
    Date of Patent: April 14, 2009
    Assignees: The University of North Carolina at Chapel Hill, Georgia State University Research Foundation, Inc.
    Inventors: Richard R. Tidwell, David W. Boykin, Chad Stephens, Mohamed A. Ismail, W. David Wilson, Reto Brun, Karl Werbovetz
  • Publication number: 20090004587
    Abstract: A layer on the reverse side of an imaging member provides excellent crack resistance to the imaging layer(s) on the front side. The crack-deterring backing layer can be a laminated self-adhesive, such as tape, or a coating. Because the crack-deterring backing layer is on the reverse side, it does not affect the electrical properties of the imaging member. Overcoat layers may be used whose function is limited to improved scratch resistance.
    Type: Application
    Filed: June 26, 2007
    Publication date: January 1, 2009
    Inventors: Mohamed Ismail Abu-Abed, Johann E. Junginger, Hany Aziz, Greg McGuire
  • Patent number: 7432278
    Abstract: A method for treating a microbial infection, including an infection from a protozoan pathogen, such as Trypanosoma brucei rhodesiense and Plasmodium falciparum, in a subject in need thereof by administering to the subject an effective amount of a dicationic imidazopyridine compound or a dicationic tetrahydro-imidazopyridine compound. Processes for synthesizing dicationic imidazopyridines and dicationic tetrahydro-imidazopyridines and the novel dicationic imidazopyridine and dicationic tetrahydro-imidazopyridine compounds themselves.
    Type: Grant
    Filed: March 8, 2005
    Date of Patent: October 7, 2008
    Assignees: The University of North Carolina at Chapel Hill, Georgia State University Research Foundation, Inc.
    Inventors: David W. Boykin, Richard R. Tidwell, W. David Wilson, Mohamed A. Ismail
  • Publication number: 20080015169
    Abstract: Aminomethyl substituted tetracycline compounds, pharmaceutical compositions, and methods of use thereof are discussed.
    Type: Application
    Filed: June 5, 2007
    Publication date: January 17, 2008
    Applicant: Paratek Pharmaceuticals, Inc.
    Inventors: Mark Nelson, Kwasi Ohemeng, Roger Frechette, Paul Abato, Victor Amoo, Haregewein Assefa, Joel Berniac, Beena Bhatia, Todd Bowser, Jackson Chen, Laura Honeyman, Mohamed Ismail, Oak Kim, Rachid Mechiche, N. Reddy, Atul Verma, Peter Viski, Tadeusz Warchol, Ivan Yanachkov
  • Publication number: 20070232621
    Abstract: Novel dicationic terphenyl compounds and their aza analogues. Methods for combating microbial infections with novel dicationic terphenyl compounds and their aza analogues. Processes for synthesizing novel dicationic terphenyl compounds and their aza analogues.
    Type: Application
    Filed: January 25, 2007
    Publication date: October 4, 2007
    Inventors: Richard Tidwell, David Boykin, W. Wilson, Reto Brun, Karl Werbovetz, Mohamed Ismail, Reem Arafa, Laixing Hu
  • Patent number: 7256203
    Abstract: A compound of Formula (I): wherein: X is selected from the group consisting of O, S, and NR17, where R17 is hydrogen or lower alkyl; A and Y are CH, N, NR17, O, or S; C1 and C2 are each C or N, wherein C1 and C2 are the same or different; D1 and D2 are each C or N, wherein D1 and D2 are the same or different; B and Z are CH, N, or NR17, provided that B, Z, or both B and Z are not present when A, Y, or both A and Y are O, S, or NR17; R13, R14, R1 and R8 can be present or absent, and when present are selected from the group consisting of H, lower alkyl, halogen, alkoxyl, aryloxyl, aralkoxy and hydroxyl; R15 and Rare selected from the group consisting of H, lower alkyl, halogen, alkoxyl, aryloxyl, aralkoxy and hydroxyl; R3 and R6 are each independently selected from the group consisting of H, hydroxy, lower alkyl, cycloalkyl, aryl, aralkyl, alkoxyl, hydroxycycloalkyl, alkoxycycloalkyl, hydroxyalkyl, aminoalkyl, acyloxy, acetoxy, and alkylaminoalkyl; and R2, R4, R5 and R7 are each independently selected fr
    Type: Grant
    Filed: November 25, 2003
    Date of Patent: August 14, 2007
    Assignees: The University of North Carolina at Chapel Hill, Georgia State University Research Foundation, Inc.
    Inventors: David W. Boykin, Richard R. Tidwell, Mohamed A. Ismail, Reto Brun
  • Patent number: 7219513
    Abstract: The present invention relates to methods for separating and recovering ethane, propane and heavier components from a feed gas, e.g. raw natural gas or a refinery or petroleum plant gas stream or a petrochemical plant gas stream. These methods employ a common new concept which is the use of the turbo-expander shaft compressor to generate the reflux requirement for the cryogenic absorber or distillation columns. The power of the turbo-expander which is absorbed by the shaft compressor is always high enough so that reflux generation by a specific gas compression through the expander shaft compressor and subsequent cooling, condensation and sub-cooling can always be easily maintained. The present invention allows for higher cryogenic absorber pressure and a lower demethanizer/de-ethanizer column pressure thus eliminating the common cryogenic pump at absorber bottom. The present invention ultimately results in a lower residue compression and utilities consumption.
    Type: Grant
    Filed: November 1, 2004
    Date of Patent: May 22, 2007
    Inventor: Hussein Mohamed Ismail Mostafa
  • Publication number: 20070079213
    Abstract: Wireless transmission of data is effected across a communications channel defined by a communications medium by means of an encoder, operable to apply a low density parity check (LDPC) code to data for transmission. The LDPC code is irregular with respect to the degree of variable nodes, and so the transmitter further comprises means for sorting encoded data with respect to the corresponding variable node degree, and modulation and distribution means for allocating encoded and sorted data onto the communications medium.
    Type: Application
    Filed: June 28, 2006
    Publication date: April 5, 2007
    Applicant: Kabushiki Kaisha Toshiba
    Inventor: Mohamed Ismail
  • Publication number: 20060293540
    Abstract: Novel dicationic bichalcophene compounds are described. The presently disclosed novel dicationic bichalcophene compounds exhibit in vitro activity versus Trypanosoma brucei rhodesiense, Plasmodium falciparum, or Leishmania donovani comparable to that of pentamidine and furamidine. Some of the novel dicationic bichalcophene compounds displayed good activity in vivo in a murine model of a Trypanosoma brucei rhodesiense infection.
    Type: Application
    Filed: May 16, 2006
    Publication date: December 28, 2006
    Inventors: Richard Tidwell, David Boykin, Chad Stephens, Mohamed Ismail, W. Wilson, Reto Brun, Karl Werbovetz
  • Publication number: 20060293328
    Abstract: Novel dicationic terphenyl compounds and their aza analogues. Methods for combating microbial infections with novel dicationic terphenyl compounds and their aza analogues. Processes for synthesizing novel dicationic terphenyl compounds and their aza analogues.
    Type: Application
    Filed: May 17, 2006
    Publication date: December 28, 2006
    Inventors: Richard Tidwell, David Boykin, W. Wilson, Reto Brun, Karl Werbovetz, Mohamed Ismail, Reem Arafa
  • Publication number: 20060281717
    Abstract: 11a, 12-dehydrotetracycline compounds are described.
    Type: Application
    Filed: February 6, 2006
    Publication date: December 14, 2006
    Inventors: Joel Berniac, Mohamed Ismail, Mark Nelson, Faye Seyedi