Patents by Inventor Brooks Edwards

Brooks Edwards 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: 20020055181
    Abstract: Chemiluminescent heteroaryl substituted benzothiazole 1,2-dioxetane compounds capable of producing light energy when decomposed are provided.
    Type: Application
    Filed: September 5, 2001
    Publication date: May 9, 2002
  • Publication number: 20020042085
    Abstract: Chemiluminescent 1,2-dioxetane compounds capable of producing light energy when decomposed, substantially stable at room temperature, represented by the formulas I or II: 1
    Type: Application
    Filed: September 5, 2001
    Publication date: April 11, 2002
  • Patent number: 6355441
    Abstract: Chemiluminescent 1,2-dioxetane compounds capable of producing light energy when decomposed, substantially stable at room temperature, represented by the formulas I or II:
    Type: Grant
    Filed: July 28, 1999
    Date of Patent: March 12, 2002
  • Patent number: 6346615
    Abstract: Spiroadamantyl dioxetanes bearing an alkoxy substituent, and an aromatic substituent of phenyl or naphthyl on the dioxetane ring can be activated to chemiluminesce if the aromatic substituent bears a moiety designated OX, wherein the X is cleaved by an enzyme with which the dioxetane is permitted to come in contact with. The T½ kinetics of the chemiluminescent reaction, as well as the signal intensity, or quantum yield of the chemiluminescent reaction, can be altered by selection of an electron-withdrawing or an electron-donating group Z, at positions on the aromatic substituent other than those adjacent the point of attachment to the dioxetane. Signal strength can further be enhanced by recognized chemiluminescent enhancers.
    Type: Grant
    Filed: September 6, 2000
    Date of Patent: February 12, 2002
  • Patent number: 6287767
    Abstract: A chemiluminescent assays for the determination of the presence or amount of a biopolymer in bound assays using 1,2-dioxetanes in connection with AttoPhos™ as chemiluminescent substrates for enzyme-labeled targets or probes is provided. Further disclosed is a kit for conducting a bioassay for the presence or concentration of a biopolymer comprising a) an enzyme complex; b) a 1,2-dioxetane; and c) AttoPhos™.
    Type: Grant
    Filed: November 12, 1998
    Date of Patent: September 11, 2001
  • Patent number: 6162610
    Abstract: Xanthan esters and acridans are substrates for horseradish peroxidase. These stable, enzymatically cleavable chemiluminescent esters are substrates for horseradish peroxidase which, together with peroxide is among the extensively used enzyme in enzyme-linked detection methods, including immunoassays, oligonucleotide detection and nucleic acid hybridization. The novel compounds are used, together with peroxide, alkali and the peroxidase, to indicate the presence and/or concentration of target compounds. The assays may be enhanced by the use of polymeric quaternary onium enhancement compounds or similar compounds selected to enhance the chemiluminescence emitted.
    Type: Grant
    Filed: September 11, 1998
    Date of Patent: December 19, 2000
  • Patent number: 6140495
    Abstract: Spiroadamantyl dioxetanes bearing an alkoxy substituent, and an aromatic substituent of phenyl or naphthyl on the dioxetane ring can be activated to chemiluminesce if the aromatic substituent bears a moiety designated OX, wherein the X is cleaved by an enzyme with which the dioxetane is permitted to come in contact with. The T.sub.1/2 kinetics of the chemiluminescent reaction, as well as the signal intensity, or quantum yield of the chemiluminescent reaction, can be altered by selection of an electron-withdrawing or an electron-donating group Z, at positions on the aromatic substituent other than those adjacent the point of attachment to the dioxetane. Signal strength can further be enhanced by recognized chemiluminescent enhancers.
    Type: Grant
    Filed: April 22, 1999
    Date of Patent: October 31, 2000
  • Patent number: 6132956
    Abstract: Dioxetanes that can be triggered by bases are provided which can be used to detect bases in organic solvents, aqueous preparations and detect gaseous bases in the atmosphere. The dioxetanes can be used to detect the release of bases from various labels, as a means to detect the presence of a base released by physical or natural processes, to calibrate light measuring apparatus and to determine the amount of reducing or oxidizing agent present in the base.
    Type: Grant
    Filed: November 5, 1997
    Date of Patent: October 17, 2000
  • Patent number: 6124478
    Abstract: Compounds having the formula: ##STR1## wherein T is a polycycloalkylidene group (e.g., adamant-2-ylidene); R is a C.sub.1-20 alkyl, aralkyl or cycloalkyl group; and Y is a fluorescent chromophore (e.g., m-phenylene), produced by reacting a compound having the formula: ##STR2## with an R-ylating agent (e.g., R.sub.2 SO.sub.4) in the presence of an alkali metal alkoxide in a polar aprotic solvent. Also, compounds having the formula: ##STR3## are produced by reacting a compound having the formula: ##STR4## with ##STR5## wherein X is an electronegative leaving group (e.g., a halogen anion such as chloride ion) in the presence of a Lewis base (e.g., a trialkyl-amine) dissolved in an aprotic organic solvent (e.g., benzene or toluene). Also, compounds having the formula ##STR6## are produced by reacting a compound of the formula ##STR7## with a tetra-O-acylated-O-hexopyranoside halide, then hydrolyzing off the protective acyl groups.
    Type: Grant
    Filed: August 24, 1998
    Date of Patent: September 26, 2000
  • Patent number: 6063574
    Abstract: Probes labeled with 1,2-dioxetane precursors can be employed in a variety of assays. The probes may be nucleic acid, peptide nucleic acid, proteins including enzyme, antibody or antigen, steroid, carbohydrate, drug or non-drug hapten. The probe is provided with a 1,2-dioxetane precursor bound thereto, generally either covalently, or a strong ligand bond. The dioxetane precursor moiety is converted to a bound 1,2-dioxetane by exposure to singlet oxygen. These dioxetane (labels) either spontaneously decompose, or are induced to decompose by an appropriate trigger to release light. The trigger may be a change in pH temperature, or an agent which removes a protective group. Assay formats in which these 1,2-dioxetane labeled probes and referents may be used to include hybridization assays, immuno assays, gel-based assays and Capillary Zone Electrophoresis.
    Type: Grant
    Filed: February 3, 1998
    Date of Patent: May 16, 2000
  • Patent number: 6022964
    Abstract: Spiroadamantyl dioxetanes bearing an alkoxy substituent, and an aromatic substituent of phenyl or naphthyl on the dioxetane ring can be activated to chemiluminesce if the aromatic substituent bears a moiety designated OX, wherein the X is cleaved by an enzyme with which the dioxetane is permitted to come in contact with. The T.sub.1/2 kinetics of the chemiluminescent reaction, as well as the signal intensity, or quantum yield of the chemiluminescent reaction, can be altered by selection of an electron-withdrawing or an electron-donating group Z, at positions on the aromatic substituent other than those adjacent the point of attachment to the dioxetane. Signal strength can further be enhanced by recognized chemiluminescent enhancers.
    Type: Grant
    Filed: August 1, 1997
    Date of Patent: February 8, 2000
  • Patent number: 5994073
    Abstract: Chemiluminescent bioassays for the presence or concentration of an analyte in a sample use 1,2-dioxetanes as substrates for the enzyme of an enzyme complex that bind to the analyte. The chemiluminescence obtained from the decomposition of the dioxetane triggered by the enzyme through the formation of the corresponding 1,2-dioxetane oxyanion of the enzyme complex is enhanced by the addition of TBQ as an enhancement agent. Other polymeric quaternary onium salts can be used as enhancement agents in conjunction with enhancement additives which improve the ability of the enhancement agent to form hydrophobic regions in the aqueous sample, in which regions the 1,2-dioxetane oxyanion and its chemiluminescent decomposition products can be sequestered. A kit for performing such assays is also provided.
    Type: Grant
    Filed: May 1, 1997
    Date of Patent: November 30, 1999
  • Patent number: 5981768
    Abstract: A new class of stable dioxetanes bears a polycyclic stabilizing group and aryloxy moiety, the oxygen atom of which is provided with a protective group which can be removed by an enzymatic or chemical trigger admixed with the dioxetane. The polycyclic stabilizing group is preferably spiroadamantane. The group further bears an alkoxy, aryloxy, aralkyloxy or cycloalkyloxy moiety which is partially or completely substituted with halogens, particularly fluorine and chlorine. Proper selection of electron active groups on the stabilizing moiety, the aryl group and the OR group yields enhanced enzyme kinetics, superior light intensity and excellent detection sensitivity in various assays.
    Type: Grant
    Filed: September 21, 1998
    Date of Patent: November 9, 1999
  • Patent number: 5871938
    Abstract: 1,2-dioxetane compounds bearing a proteolytic enzyme specific amino acid or peptide are provided, which amino acid or peptide can be removed by action of the corresponding protease. When the amino acid or peptide is removed, the 1,2-dioxetane decomposes with chemiluminescence, the generation of light providing a rapid, ultra-sensitive and convenient means for detecting the presence of the protease in the sample being inspected. The amount of light generated, or degree of chemiluminescence, can be correlated with the amount of protease present. Immunoassays, as well as DNA hybridization and DNA probe assays are provided.
    Type: Grant
    Filed: September 22, 1997
    Date of Patent: February 16, 1999
  • Patent number: 5869699
    Abstract: A new class of stable dioxetanes bears a polycyclic stabilizing group and aryloxy moiety, the oxygen atom of which is provided with a protective group which can be removed by an enzymatic or chemical trigger admixed with the dioxetane. The polycyclic stabilizing group is preferably spiroadamantane. The group further bears an alkoxy, aryloxy, aralkyloxy or cycloalkyloxy moiety which is partially or completely substituted with halogens, particularly fluorine and chlorine. Proper selection of electron active groups on the stabilizing moiety, the aryl group and the OR group yields enhanced enzyme kinetics, superior light intensity and excellent detection sensitivity in various assays.
    Type: Grant
    Filed: June 10, 1997
    Date of Patent: February 9, 1999
  • Patent number: 5856522
    Abstract: Kits comprising 1,2-dioxetanes which can be cause to chemiluminesce by contact with an enzyme, and the enzyme, are provided for use in optically detectable assays. The assay calls for binding the enzyme to the substance to be detected in a sample, removing any unbound enzyme, and then combining the treated sample with the dioxetane. If the substance to be detected is present, enzyme bound thereto will cleave the protecting group of the dioxetane, causing the dioxetane to decompose and chemiluminescence. The intensity of luminescence is indicative of the concentration of the substance in the sample. The substance to be detected may be an enzyme, in which case no binding group is necessary.
    Type: Grant
    Filed: June 25, 1997
    Date of Patent: January 5, 1999
  • Patent number: 5851771
    Abstract: Spiroadamantyl dioxetanes bearing an alkoxy substituent, and an aromatic substituent of phenyl or naphthyl on the dioxetane ring can be activated to chemiluminesce if the aromatic substituent bears a moiety designated OX, wherein the X is cleaved by an enzyme with which the dioxetane is permitted to come in contact with. The T.sub.1/2 kinetics of the chemiluminescent reaction, as well as the signal intensity, or quantum yield of the chemiluminescent reaction, can be altered by selection of an electron-withdrawing or an electron-donating group Z, at positions on the aromatic substituent other than those adjacent the point of attachment to the dioxetane. Signal strength can further be enhanced by recognized chemiluminescent enhancers.
    Type: Grant
    Filed: January 19, 1996
    Date of Patent: December 22, 1998
  • Patent number: 5849495
    Abstract: A chemiluminescent assays for the determination of the presence or amount of a biopolymer in bound assays using 1,2-dioxetanes in connection with AttoPhos.TM. as chemiluminescent substrates for enzyme-labeled targets or probes is provided. Further disclosed is a kit for conducting a bioassay for the presence or concentration of a biopolymer comprising a) an enzyme complex; b) a 1,2-dioxetane; and c) AttoPhos.TM..
    Type: Grant
    Filed: March 4, 1997
    Date of Patent: December 15, 1998
  • Patent number: 5847161
    Abstract: A new class of stable dioxetanes bears a polycyclic stabilizing group and aryloxy moiety, the oxygen atom of which is provided with a protective group which can be removed by an enzymatic or chemical trigger admixed with the dioxetane. The polycyclic stabilizing group is preferably spiroadamantane. The group further bears an alkoxy, aryloxy, aralkyloxy or cycloalkyloxy moiety which is partially or completely substituted with halogens, particularly fluorine and chlorine. Proper selection of electron active groups on the stabilizing moiety, the aryl group and the OR group yields enhanced enzyme kinetics, superior light intensity and excellent detection sensitivity in various assays.
    Type: Grant
    Filed: June 13, 1997
    Date of Patent: December 8, 1998
  • Patent number: 5843681
    Abstract: 1, 2-dioxetane compounds bearing a proteolytic enzyme specific amino acid or peptide are provided, which amino acid or peptide can be removed by action of the corresponding protease. When the amino acid or peptide is removed, the 1,2-dioxetane decomposes with chemiluminescence, the generation of light providing a rapid, ultra-sensitive and convenient means for detecting the presence of the protease in the sample being inspected. The amount of light generated, or degree of chemiluminescence, can be correlated with the amount of protease present. Immunoassays, as well as DNA hybridization and DNA probe assays are provided.
    Type: Grant
    Filed: October 11, 1996
    Date of Patent: December 1, 1998