Patents by Inventor David Segev

David Segev 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: 8293209
    Abstract: The present invention relates to a novel delivery system for delivering therapeutic agents into living cells, and more particularly, to novel chemical moieties that are designed capable of targeting and/or penetrating cells or other targets of interest and further capable of binding therapeutic agents to be delivered to these cells, and to delivery systems containing same.
    Type: Grant
    Filed: October 22, 2009
    Date of Patent: October 23, 2012
    Assignee: Segev Laboratories Limited
    Inventor: David Segev
  • Publication number: 20100092386
    Abstract: The present invention relates to a novel delivery system for delivering therapeutic agents into living cells, and more particularly, to novel chemical moieties that are designed capable of targeting and/or penetrating cells or other targets of interest and further capable of binding therapeutic agents to be delivered to these cells, and to delivery systems containing same.
    Type: Application
    Filed: October 22, 2009
    Publication date: April 15, 2010
    Inventor: David SEGEV
  • Patent number: 7683164
    Abstract: A compound which comprises a backbone having a plurality of chiral carbon atoms, the backbone bearing a plurality of ligands each being individually bound to a chiral carbon atom of the plurality of chiral carbon atoms, the ligands including one or more pair(s) of adjacent ligands each containing a moiety selected from the group consisting of a naturally occurring nucleobase and a nucleobase binding group, wherein moieties of the one or more pair(s) are directly linked to one another via a linker chain; building blocks for synthesizing the compound; and uses of the compound, particularly in antisense therapy.
    Type: Grant
    Filed: February 19, 2008
    Date of Patent: March 23, 2010
    Assignee: Bio-Rad Laboratories Inc.
    Inventor: David Segev
  • Publication number: 20090005334
    Abstract: A compound which comprises a backbone having a plurality of chiral carbon atoms, the backbone bearing a plurality of ligands each being individually bound to a chiral carbon atom of the plurality of chiral carbon atoms, the ligands including one or more pair(s) of adjacent ligands each containing a moiety selected from the group consisting of a naturally occurring nucleobase and a nucleobase binding group, wherein moieties of the one or more pair(s) are directly linked to one another via a linker chain; building blocks for synthesizing the compound; and uses of the compound, particularly in antisense therapy.
    Type: Application
    Filed: February 19, 2008
    Publication date: January 1, 2009
    Applicant: Bio-Rad Laboratories Inc.
    Inventor: David Segev
  • Patent number: 7348148
    Abstract: A compound which comprises a backbone having a plurality of chiral carbon atoms, the backbone bearing a plurality of ligands each being individually bound to a chiral carbon atom of the plurality of chiral carbon atoms, the ligands including one or more pair(s) of adjacent ligands each containing a moiety selected from the group consisting of a naturally occurring nucleobase and a nucleobase binding group, wherein moieties of the one or more pair(s) are directly linked to one another via a linker chain; building blocks for synthesizing the compound; and uses of the compound, particularly in antisense therapy.
    Type: Grant
    Filed: March 2, 2006
    Date of Patent: March 25, 2008
    Assignee: Bio-Rad Laboratories Inc.
    Inventor: David Segev
  • Publication number: 20080004234
    Abstract: A novel class of oligomeric compounds designed for forming conjugates with biologically active substances and delivering these substances to a desired bodily target are disclosed. Novel conjugates of these oligomeric compounds and biologically active moieties, pharmaceutical compositions containing such conjugates, and uses thereof as delivery systems for delivering the biologically active substances to a desired target are further disclosed. Processes of preparing the conjugates and the oligomeric compounds and novel intermediates designed for and used in these processes are also disclosed.
    Type: Application
    Filed: June 1, 2007
    Publication date: January 3, 2008
    Applicant: Segev Laboratories Limited
    Inventor: David Segev
  • Publication number: 20060160763
    Abstract: A novel class of oligomeric compounds designed for forming conjugates with biologically active substances and delivering these substances to a desired bodily target are disclosed. Novel conjugates of these oligomeric compounds and biologically active moieties, pharmaceutical compositions containing such conjugates, and uses thereof as delivery systems for delivering the biologically active substances to a desired target are further disclosed. Processes of preparing the conjugates and the oligomeric compounds and novel intermediates designed for and used in these processes are also disclosed.
    Type: Application
    Filed: December 29, 2005
    Publication date: July 20, 2006
    Inventor: David Segev
  • Publication number: 20060148751
    Abstract: A compound which comprises a backbone having a plurality of chiral carbon atoms, the backbone bearing a plurality of ligands each being individually bound to a chiral carbon atom of the plurality of chiral carbon atoms, the ligands including one or more pair(s) of adjacent ligands each containing a moiety selected from the group consisting of a naturally occurring nucleobase and a nucleobase binding group, wherein moieties of the one or more pair(s) are directly linked to one another via a linker chain; building blocks for synthesizing the compound; and uses of the compound, particularly in antisense therapy.
    Type: Application
    Filed: March 2, 2006
    Publication date: July 6, 2006
    Applicant: Bio-Rad Laboratories Inc.
    Inventor: David Segev
  • Patent number: 7034131
    Abstract: A compound which comprises a backbone having a plurality of chiral carbon atoms, the backbone bearing a plurality of ligands each being individually bound to a chiral carbon atom of the plurality of chiral carbon atoms, the ligands including one or more pair(s) of adjacent ligands each containing a moiety selected from the group consisting of a naturally occurring nucleobase and a nucleobase binding group, wherein moieties of the one or more pair(s) are directly linked to one another via a linker chain; building blocks for synthesizing the compound; and rises of the compound, particularly in antisense therapy.
    Type: Grant
    Filed: January 29, 2002
    Date of Patent: April 25, 2006
    Assignee: Bio-Rad Laboratories Inc.
    Inventor: David Segev
  • Publication number: 20030191074
    Abstract: A compound which comprises a backbone having a plurality of chiral carbon atoms, the backbone bearing a plurality of ligands each being individually bound to a chiral carbon atom of the plurality of chiral carbon atoms, the ligands including one or more pair(s) of adjacent ligands each containing a moiety selected from the group consisting of a naturally occurring nucleobase and a nucleobase binding group, wherein moieties of the one or more pair(s) are directly linked to one another via a linker chain; building blocks for synthesizing the compound; and rises of the compound, particularly in antisense therapy.
    Type: Application
    Filed: January 29, 2002
    Publication date: October 9, 2003
    Applicant: Bio-Rad Laboratories Inc.
    Inventor: David Segev
  • Patent number: 6348583
    Abstract: A compound comprising a poly(ether-thioether), poly(ether-sulfoxide) or poly(ether-sulfone) backbone bearing a plurality of ligands that are individually bound to chiral carbon atoms located within the backbone, at least one of the ligands including a moiety such as a naturally occurring nucleobase, a nucleobase binding group or a DNA interchelator; a process of synthesizing the compound, monomers to be used in this process and their synthesis process and processes for using the compound in biochemistry and medicine.
    Type: Grant
    Filed: October 4, 1999
    Date of Patent: February 19, 2002
    Assignee: Bio-Rad Laboratories, Inc.
    Inventor: David Segev
  • Patent number: 6335432
    Abstract: A compound of a general structure: D—B—M wherein: B is selected from the group consisting of derivatives of naturally occurring nitrogenous bases having a C—H group at positions 5 or 8, and derivatives of nitrogenous base-analogs having a C—H group at positions 5 or 8; D is at least one derivatizing group, including hydrogen; and M is a maleimide derivative.
    Type: Grant
    Filed: August 7, 1998
    Date of Patent: January 1, 2002
    Assignee: Bio-Red Laboratories, Inc.
    Inventor: David Segev
  • Patent number: 6004826
    Abstract: This invention relates to a process for amplifying and detecting any desired specific nucleic acid sequence that exists in a nucleic acid or mixture thereof. The process comprises treating single strand RNA or separated complementary strands of DNA target with a molar excess of oligonucleotide complement pairs in which these oligonucleotide complement pairs have sequences complementary to the target, under hybridizing conditions. In one embodiment, the oligonucleotide complement pairs may have a gap of one or more bases which may be repaired (filled) by enzymes. The oligonucleotide complement pairs are joined together, forming joined, oligonucleotide product. The target/joined product hybrid nucleic acids are then denatured to single strands again, at which point both the target and the joined products can form hybrids with new oligonucleotide complement pairs. The steps of the reaction may be carried out stepwise or simultaneously and can be repeated as often as desired.
    Type: Grant
    Filed: October 27, 1993
    Date of Patent: December 21, 1999
    Assignee: David Segev
    Inventor: David Segev
  • Patent number: 5908845
    Abstract: A compound comprising a polyether backbone bearing a plurality of ligands that are individually bound to chiral carbon atoms located within said backbone, at least one of said ligands including a moiety selected from the group consisting of a naturally occurring nucleobase, a nucleobase binding group and a DNA intercalator; a process of synthesizing the compound, monomers to be used in this process and their synthesis process and processes for using the compound in biochemistry and medicine.
    Type: Grant
    Filed: October 30, 1996
    Date of Patent: June 1, 1999
    Inventor: David Segev
  • Patent number: 5846709
    Abstract: The present invention is directed to a method of amplifying and detecting single or double stranded target nucleic acid molecules. Amplification of the target nucleic acid molecule is accomplished by using at least two chemically modified oligonucleotide probes per target nucleic acid molecule to form a joined oligonucleotide product. Each oligonucleotide probe is comprised of a long and short sequence. The long sequence of each probe hybridizes to adjacent regions of the target nucleic acid molecule. The short sequences of each probe hybridize to each other. Chemical functionality groups attached to the short sequences of each oligonucleotide probe covalently combine linking the probes to form a joined oligonucleotide product. The joined oligonucleotide product is formed without the use of enzymes.The reactivity of the chemical functionality groups on each probe is target dependent.
    Type: Grant
    Filed: June 15, 1993
    Date of Patent: December 8, 1998
    Assignee: ImClone Systems Incorporated
    Inventor: David Segev
  • Patent number: 5843650
    Abstract: The present invention and kits are directed to a method of amplifying and detecting single or double-stranded target nucleic acid molecules in a test sample. Amplification is accomplished through the use of a minimum of two oligonucleotide probe complement pairs, wherein members oligonucleotide probes from both pair of oligonucleotide probe complement pairs form a minimum of two oligonucleotide probe pairs, at least one of which is complementary to a given portion of a target nucleic acid sequence which act as template. One of the oligonucleotide probes of each oligonucleotide probe pair have an additional protecting sequence which is not complementary to the target sequence. These additional protecting sequences are preferably complementary to each other. Chemical functionality groups attached to the oligonucleotide probes covalently combine the probes to form a joined oligonucleotide product. The joined oligonucleotide product is formed without the use of enzymes.
    Type: Grant
    Filed: May 1, 1995
    Date of Patent: December 1, 1998
    Inventor: David Segev
  • Patent number: 5437977
    Abstract: A method for amplifying a signal during the detection of target nucleic acid molecules utilizes a primary oligonucleotide probe that binds to a bridging nucleic acid molecule. The bridging molecule hybridizes to a first developer nucleic acid molecule. Each first developer molecule comprises: (a) a first branch having a sequence of at least two different nucleotides and at least six total nucleotides complementary to a sequence of a first branch of a second developer molecule; (b) a second branch comprising a sequence of at least two different nucleotides and at least six total nucleotides complementary to a sequence of a second branch of the second developer molecule; and (c) a detectable label.
    Type: Grant
    Filed: May 29, 1992
    Date of Patent: August 1, 1995
    Assignee: David Segev
    Inventor: David Segev
  • Patent number: 4460501
    Abstract: A composition of the formula: ##STR1## wherein X is lower alkyl, and Z is an amino acid a peptide residue or a good leaving group, the composition is adaptable as a blocking or protecting group for an amine composition useful in peptide synthesis and a method of protecting an amino group of an organic molecule during a reaction which modifies a portion of the molecule other than the protected amino group.
    Type: Grant
    Filed: August 30, 1983
    Date of Patent: July 17, 1984
    Assignee: Research Corporation
    Inventors: Louis A. Carpino, David Segev