Patents Examined by Scott Houtteman
  • Patent number: 6322979
    Abstract: An article suitable for use as a biosensor includes a molecule of a formula X—R—Ch adhered to a surface of the article as part of a self-assembled monolayer. X is a functionality that adheres to the surface, R is a spacer moiety, and Ch is a chelating agent. A metal ion can be coordinated by the chelating agent, and a polyamino acid-tagged biological binding partner of a target biological molecule coordinated to the metal ion. A method of the invention involves bringing the article into contact with a medium containing or suspected of containing the target biological molecule and allowing the biological molecule to biologically bind to the binding partner. The article is useful particularly as a surface plasmon resonance chip.
    Type: Grant
    Filed: April 21, 1999
    Date of Patent: November 27, 2001
    Assignee: President and Fellows of Harvard College
    Inventors: Cynthia C. Bamdad, George B. Sigal, Jack L. Strominger, George M. Whitesides
  • Patent number: 5620843
    Abstract: A peptide within a non-A non-B hepatitis virus genome reacts with antibodies found in individuals infected with non-A non-B hepatitis virus. The peptide is described along with the nucleic acid which encodes this peptide, antibodies directed against the peptide, as well as vectors, host cells and kits comprising these products. Also described are methods of detection of non-A non-B hepatitis using these products.
    Type: Grant
    Filed: June 26, 1992
    Date of Patent: April 15, 1997
    Assignee: Akzo Nobel N.V.
    Inventors: Jan A. Hellings, Johannes J. Wilhelmus de Haard
  • Patent number: 5569587
    Abstract: A method for detecting a component of an aqueous liquid comprising adding to the liquid a luminescent dye selected from the group consisting of cyanine, merocyanine and styryl dyes containing at least one sulfonic acid or sulfonate group attached to an aromatic nucleus and reacting the dye with the component. The labeled component is then detected by an optical detection method.
    Type: Grant
    Filed: April 19, 1995
    Date of Patent: October 29, 1996
    Assignee: Carnegie Mellon University
    Inventor: Alan S. Waggoner
  • Patent number: 5567811
    Abstract: Phosphoramidite derivatives of formula (V), ##STR1## wherein X is biotin and Y is a protecting group. There may be a linker arm, of variable length, between X and the rest of the molecule. Examples of the protecting group Y include 4,4'-dimethoxytrityl, trifluoroacetyl and fluorenylmethoxycarbonyl (Fmoc). The phosphoramidite derivatives are useful in single or multiple labelling of synthetic oligonucleotides. Process for the preparation of these phosphoramidite derivatives are also disclosed.
    Type: Grant
    Filed: November 3, 1992
    Date of Patent: October 22, 1996
    Assignee: Amersham International plc
    Inventors: Konrad Misiura, Michael Gait
  • Patent number: 5547839
    Abstract: Means for simultaneous parallel sequence analysis of a large number of biological polymer macromolecules. Apparatus and methods may use fluorescent labels in repetitive chemistry to determine terminal monomers on solid phase immobilized polymers. Reagents which specifically recognize terminal monomers are used to label polymers at defined positions on a solid substrate.
    Type: Grant
    Filed: December 6, 1990
    Date of Patent: August 20, 1996
    Assignee: Affymax Technologies N.V.
    Inventors: William J. Dower, Stephen P. A. Fodor
  • Patent number: 5547859
    Abstract: There are provided variant family B DNA polymerases having no 3'.fwdarw.5' exonuclease activity. These variant polymerases have utility as DNA sequencing polymerases. Methods for DNA sequencing with family B DNA polymerases and chain-terminating nucleotides not previously used for sequencing have been developed. The methods disclosed involve the use of family B DNA polymerases not known heretofore to have utility in DNA sequencing, such as variant or wild type forms of phage T4 DNA polymerase or Escherichia coli DNA polymerase II, with novel combinations of deoxynucleotides and chain-terminating nucleotides.
    Type: Grant
    Filed: August 2, 1993
    Date of Patent: August 20, 1996
    Inventors: Myron F. Goodman, Linda J. Reha-Krantz
  • Patent number: 5512446
    Abstract: To provide a reagent with excellent stability under storage, which can detect a subject compound to be measured with higher specificity and sensitibity.Complexes of a compound represented by the general formula (I): ##STR1## (wherein R.sub.1 through R.sub.7 independently represent hydrogen atom, halogen atom, alkyl group, aryl group, aralkyl group, sulfonate group, amino group, styryl group, nitro group, hydroxyl group, carboxyl group, cyano group, or aryl azo group; R.sub.1 through R.sub.7 may or may not be bonded to each other to form a substituted or an unsubstituted condensed ring; R represents a divalent organic residue; and X.sub.1.sup..crclbar. represents an anion) and the like with immunoglobulin and the like are formed.
    Type: Grant
    Filed: June 18, 1992
    Date of Patent: April 30, 1996
    Assignee: Canon Kabushiki Kaisha
    Inventors: Takeshi Miyazaki, Kazumi Tanaka, Tsuyoshi Santo, Toshikazu Ohnishi, Tetsuro Fukui, Tadashi Okamoto
  • Patent number: 5502177
    Abstract: A compound having the structure: ##STR1## wherein R.sup.1 is an oligonucleotide;a is 1 and b is 0;A is C or CH;X is S, O, NH or NCH.sub.2 R.sup.6 ;Z is taken together with A to form an aryl ring structure comprising 6 ring atoms wherein the aryl ring carbon atoms are unsubstituted with other than H or at least 1 nonbridging ring carbon atom is substituted with R.sup.6 or .dbd.O;R.sup.6 is independently H, C.sub.1 -C.sub.6 alkyl, C.sub.2 -C.sub.6 alkenyl, C.sub.2 -C.sub.6 alkynyl, NO.sub.2, N(R.sup.3).sub.2, C.tbd.N or halo, or an R.sup.6 is taken together with an adjacent Z group R.sup.6 to complete a phenyl ring; andR.sup.3 is a protecting group or H; and tautomers, solvates and salts thereof.
    Type: Grant
    Filed: September 17, 1993
    Date of Patent: March 26, 1996
    Assignee: Gilead Sciences, Inc.
    Inventors: Mark D. Matteucci, Robert J. Jones, Kuei-Ying Lin
  • Patent number: 5495009
    Abstract: Modified oligomers containing at least one internucleoside linkage of the formula Y.sup.1 CX.sub.2 y.sup.2 wherein at least one of Y.sup.1 and Y.sup.2 is sulfur and the other is oxygen and wherein each X is the same or different and is a stabilizing substituent are disclosed. These oligomers show superior binding properties and are thus useful for binding target substances in analytical uses. Also disclosed are improved methods for synthesis of oligomers containing linkages of the general formula --YCX.sub.2 Y-- wherein each Y may be independently oxygen or sulfur.
    Type: Grant
    Filed: April 24, 1992
    Date of Patent: February 27, 1996
    Assignee: Gilead Sciences, Inc.
    Inventors: Mark Matteucci, Bob Jones, Kuei-Ying Lin
  • Patent number: 5495006
    Abstract: The herpes simplex virus encodes ICP4, a DNA binding protein. ICP4-binding duplexed structures having significantly enhanced stability under physiological conditions are described. The structures are provided in the form of polynucleotide conjugates capable of adopting a duplexed structure, in which annealable polynucleotide strands are coupled covalently at one or both ends through a chemical linker which establishes a stabilizing bridge between strands. The present polynucleotide conjugates have therapeutic utility against viral infection as the polynucleotide strands thereof define a binding site for a viral regulatory protein, thereby inactivating the protein and preventing viral replication from occurring.
    Type: Grant
    Filed: March 1, 1993
    Date of Patent: February 27, 1996
    Assignee: Allelix Biopharmaceuticals, Inc.
    Inventors: Shane Climie, Michael Ma
  • Patent number: 5493012
    Abstract: A silyloxy aromatic derivative capable of alkylating a target biological molecule when activated by ionic strength. A sequence directed reagent may be constructed by conjugating a methyl silyloxy aromatic derivative to a hexamethyiamino linker attached to either the 5' or 3' terminus of an oligonucleotide. Annealing this modified fragment of DNA to its complementary sequence allows for target modification subsequent to ionic activation. The product of this reaction is a covalent crosslink between the reagent and target strands resulting from an alkylation of DNA by the activated silyloxy aromatic derivative. In a preferred embodiment, a nitrophenyl or bromo group is attached to a methyl group of the silyloxy aromatic derivative. This reagent may be similarly linked to an oligonucleotide probe. Activation of the alkylating agent by an ionic signal (X) which may naturally occur, or may be introduced into the media containing the target molecule, such as by the introduction of a salt (MX).
    Type: Grant
    Filed: June 2, 1993
    Date of Patent: February 20, 1996
    Assignee: The Research Foundation of State University of New York
    Inventors: Steven E. Rokita, Tianhu Li, Qingping Zeng
  • Patent number: 5487993
    Abstract: Methods are described for producing recombinant DNA molecules from suitable host vectors and nucleic acids subjected to 3'-terminal transferase activity. In one embodiment, the method takes advantage of the single 3'-deoxy-adenosine monophosphate (dAMP) residues attached to the 3' termini of PCR generated nucleic acids. Vectors are prepared with recognition sequences that afford single 3'-terminal deoxy-thymidine monophosphate (dTMP) residues upon reaction with a suitable restriction enzyme. Thus, PCR generated copies of genes can be directly cloned into the vectors without need for preparing primers having suitable restriction sites therein. The invention also contemplates associated plasmid vectors and kits for implementing the methods.
    Type: Grant
    Filed: September 9, 1993
    Date of Patent: January 30, 1996
    Assignees: Invitrogen Corporation, Chimer
    Inventors: Corinna Herrnstadt, Joseph M. Fernandez, Lloyd Smith, David A. Mead
  • Patent number: 5487969
    Abstract: With the DNA sequence (SEQ ID NO:4:) of monkey B virus which codes for the gB glycoprotein (UL27) (SEQ ID NO:6:) and a portion (UL28) (SEQ ID NO:5:) of an ICP 18.5 kilodalton polypeptide (UL28), methods for early detection of the presence of monkey B virus in humans and monkeys can be performed by amplifying primer sequences and distinguishing the monkey B virus DNA coding for UL27 or UL28 from other herpes virus gB DNA using unique reaction conditions to permit unequivocal differentiation.
    Type: Grant
    Filed: April 1, 1993
    Date of Patent: January 30, 1996
    Assignee: Southwest Foundation for Biomedical Research
    Inventors: Richard Eberle, Darla Black, Franco Scinicariello, Julia Hilliard
  • Patent number: 5480803
    Abstract: An apparatus includes an enclosed chamber in which a motor-driven cylinder is mounted for rotation about a horizontal axis. The lower half of the cylinder is disposed in a trough. A blot can be attached, analyte side outward, to the surface of the cylinder, and the cylinder is then rotated to carry the blot through a succession of treatment liquids, with which the trough is charged. Each liquid is discharged from the through before the next liquid is supplied. The liquid in the through can be maintained at any desired temperature above the ambient temperature. Water can be sprayed onto the blot to wash a liquid off and to flush the trough. The blot may be held in position on the cylinder by rollers which engage only the side edges of the blot.
    Type: Grant
    Filed: July 22, 1993
    Date of Patent: January 2, 1996
    Assignee: Amersham International PLC
    Inventor: Nicholas Thomas
  • Patent number: 5478896
    Abstract: A thermoplastic molding composition comprising an aromatic carbonate polymer and a polyester derived from a cyclohexanedimethanol.
    Type: Grant
    Filed: August 12, 1993
    Date of Patent: December 26, 1995
    Assignee: General Electric Company
    Inventor: Steven W. Scott
  • Patent number: 5476929
    Abstract: A purified pneumococcal surface protein A (PspA) comprises a truncated form of the PspA protein which is immunoprotective and contains the protective epitopes of PspA. The PspA protein is soluble in physiologic solution and lacks at least the cell membrane anchor region of the whole protein. The protein is formed by insertion-duplication of mutagenesis of S. pneumoniae with pspA gene and expression of the truncated protein into the growth medium.
    Type: Grant
    Filed: June 3, 1993
    Date of Patent: December 19, 1995
    Assignee: UAB Research Foundation
    Inventors: David E. Briles, Janet L. Yother, Larry S. McDaniel
  • Patent number: 5464746
    Abstract: Novel tethered hapten intermediates and related conjugates based on carbazole and/or dibenzofuran, as well as methods for making and using such conjugates. Haptens based on the above core structures may be substituted at any position on the aromatic rings with a wide variety of substituents. Using tethered intermediates, immunogens, tracers, solid supports and labeled oligonucleotides are all described; as are methods for using the intermediates to prepare the conjugates, methods of using the conjugates to make and purify antibodies, as assay tracers, and in nucleic acid hybridization assays. Kits containing haptenated oligonucleotides and anti-hapten conjugates are also described.
    Type: Grant
    Filed: July 1, 1993
    Date of Patent: November 7, 1995
    Assignee: Abbott Laboratories
    Inventor: James R. Fino
  • Patent number: 5449556
    Abstract: A method for the detection of an analyte in a fluid sample using liposomes encapsulating acridinium esters (lumisomes). Hydrophilic polysubstituted aryl acridinium esters are useful as chemiluminescent markers and can be encapsulated within liposome vesicles without significant leakage of the esters from the vesicles. The lumisomes can be coupled to molecules with biological activity, such as antigens, antibodies, and nucleic acids, and used in luminescent assays.
    Type: Grant
    Filed: March 17, 1993
    Date of Patent: September 12, 1995
    Assignee: Ciba Corning Diagnostics Corp.
    Inventors: Say-Jong Law, Uri Piran