Patents by Inventor Nai-Yi Wang

Nai-Yi Wang 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: 20210393710
    Abstract: The present invention provides a method for manufacturing a water-in-oil-in-water multiple emulsion, comprising: (a) mixing an active component with an internal aqueous phase to form a homogenized mixture; (b) mixing the homogenized mixture with an oleaginous phase to form a water-in-oil emulsion; and (c) mixing the water-in-oil emulsion with an external aqueous phase to form the water-in-oil-in-water multiple emulsion, wherein the external aqueous phase comprises water and an excipient, and wherein the excipient comprises a whey protein concentrate and a modified starch.
    Type: Application
    Filed: April 5, 2021
    Publication date: December 23, 2021
    Inventors: CHIA-CHEN HSU, NAI-YI WANG, YU-CHEN CHENG, JINN-TSYY LAI
  • Patent number: 7083982
    Abstract: A method for synthesizing dyes excitable by a helium-neon laser (excitable at 633 nm) from hololepidines, e.g., 7-halolepidine, which dyes are suitable for detection and enumeration of reticulocytes in human blood samples. In another aspect, the invention provides a method for immunotyping phenocytes. The method is based on the phenomenon that when dyes of certain structure intercalate into DNA or RNA, the intensity of the dye increases. Dyes suitable for this invention can be described as having (a) a first heterocyclic moiety, (b) a second heterocyclic moiety, and (c) a linking group that connects the first and second heterocyclic moieties. Both the first and second heterocyclic moieties must contain at least two rings, preferably fused together. The dye is characterized by conjugation, whereby the first moiety is ethylenically conjugated to the second moiety.
    Type: Grant
    Filed: November 5, 2002
    Date of Patent: August 1, 2006
    Assignee: Abbott Laboratories
    Inventors: Nai-Yi Wang, Alex W. C. Yem
  • Publication number: 20030145394
    Abstract: A method for synthesizing dyes excitable by a helium-neon laser (excitable at 633 nm) from hololepidines, e.g., 7-halolepidine, which dyes are suitable for detection and enumeration of reticulocytes in human blood samples. In another aspect, the invention provides a method for immunotyping phenocytes. The method is based on the phenomenon that when dyes of certain structure intercalate into DNA or RNA, the intensity of the dye increases. Dyes suitable for this invention can be described as having (a) a first heterocyclic moiety, (b) a second heterocyclic moiety, and (c) a linking group that connects the first and second heterocyclic moieties. Both the first and second heterocyclic moieties must contain at least two rings, preferably fused together. The dye is characterized by conjugation, whereby the first moiety is ethylenically conjugated to the second moiety.
    Type: Application
    Filed: November 5, 2002
    Publication date: August 7, 2003
    Inventors: Nai-Yi Wang, Alex W.C. Yem
  • Patent number: 6495692
    Abstract: A method for synthesizing dyes excitable by a helium-neon laser (excitable at 633 nm) from hololepidines, e. G., 7-halolepidine, which dyes are suitable for the detection and enumeration of reticulocytes in human blood samples. In another aspect, this invention provides a method for immunotyping phenocytes. The method is based on the phenomenon that when dyes of certain structure intercalate into DNA or RNA, the intensity of the dyes increases. The general structure of dyes suitable for use in this invention is shown below: wherein: R1, R2, R3, R4, R5, R6, R7, R8, R9, R10, R11, R12, R13, Y, and n are as defined in the specification.
    Type: Grant
    Filed: December 10, 1996
    Date of Patent: December 17, 2002
    Assignee: Abbott Laboratories
    Inventors: Nai-Yi Wang, Alex W. C. Yem
  • Patent number: 6139781
    Abstract: Chemiluminescent electron-rich aryl-substituted 1,2-dioxetane compounds are disclosed in which the aryl group is poly-substituted with suitable electron-donating groups such that the light-emitting pattern of the molecule results in a very high luminescent count, thus providing for a sensitive and precise assay for haptens, analytes, polynucleotides and the like. These substituted aryl-containing 1,2-dioxetane compounds can be used as direct labels in an immunoassay or when derivatized with an appropriate leaving group, can be used as a substrate for a enzyme immunoassay. The unusual chemiluminescence of the compounds allows the timing of the luminescent reaction to be exactly controlled.
    Type: Grant
    Filed: June 30, 1997
    Date of Patent: October 31, 2000
    Assignee: Abbott Laboratories
    Inventors: Nai-Yi Wang, Roger C. Hu
  • Patent number: 6001659
    Abstract: Chemiluminescent electron-rich aryl-substituted 1,2-dioxetane compounds are disclosed in which the aryl group is poly-substituted with suitable electron-donating groups such that the light-emitting pattern of the molecule results in a very high luminescent count, thus providing for a sensitive and precise assay for haptens, analytes, polynucleotides and the like. These substituted aryl-containing 1,2-dioxetane compounds can be used as direct labels in an immunoassay or when derivatized with an appropriate leaving group, can be used as a substrate for a enzyme immunoassay. The unusual chemiluminescence of the compounds allows the timing of the luminescent reaction to be exactly controlled.
    Type: Grant
    Filed: May 9, 1995
    Date of Patent: December 14, 1999
    Assignee: Abbott Laboratories
    Inventors: Nai-Yi Wang, Roger C. Hu
  • Patent number: 6001561
    Abstract: Chemiluminescent electron-rich aryl-substituted 1,2-dioxetane compounds are disclosed in which the aryl group is poly-substituted with suitable electron-donating groups such that the light-emitting pattern of the molecule results in a very high luminescent count, thus providing for a sensitive and precise assay for haptens, analytes, polynucleotides and the like. These substituted aryl-containing 1,2-dioxetane compounds can be used as direct labels in an immunoassay or when derivatized with an appropriate leaving group, can be used as a substrate for a enzyme immunoassay. The unusual chemiluminescence of the compounds allows the timing of the luminescent reaction to be exactly controlled.
    Type: Grant
    Filed: May 9, 1995
    Date of Patent: December 14, 1999
    Assignee: Abbott Laboratories
    Inventors: Nai-Yi Wang, Roger C. Hu
  • Patent number: 5780249
    Abstract: Chemiluminescent electron-rich aryl-substituted 1,2-dioxetane compounds are disclosed in which the aryl group is poly-substituted with suitable electron-donating groups such that the light-emitting pattern of the molecule results in a very high luminescent count, thus providing for a sensitive and precise assay for haptens, analytes, polynucleotides and the like. These substituted aryl-containing 1,2-dioxetane compounds can be used as direct labels in an immunoassay or when derivatized with an appropriate leaving group, can be used as a substrate for a enzyme immunoassay. The unusual chemiluminescence of the compounds allows the timing of the luminescent reaction to be exactly controlled.
    Type: Grant
    Filed: May 9, 1995
    Date of Patent: July 14, 1998
    Assignee: Abbott Laboratories
    Inventors: Nai-Yi Wang, Roger C. Hu
  • Patent number: 5607625
    Abstract: Chemiluminescent electron-rich aryl-substituted 1,2-dioxetane compounds are disclosed in which the aryl group is poly-substituted with suitable electron-donating groups such that the light-emitting pattern of the molecule results in a very high luminescent count, thus providing for a sensitive and precise assay for haptens, analytes, polynucleotides and the like. These substituted aryl-containing 1,2-dioxetane compounds can be used as direct labels in an immunoassay or when derivatized with an appropriate leaving group, can be used as a substrate for a enzyme immunoassay. The unusual chemiluminescence of the compounds allows the timing of the luminescent reaction to be exactly controlled.
    Type: Grant
    Filed: May 9, 1995
    Date of Patent: March 4, 1997
    Assignee: Abbott Laboratories
    Inventors: Nai-Yi Wang, Roger C. Hu
  • Patent number: 5603868
    Abstract: Chemiluminescent electron-rich aryl-substituted 1,2-dioxetane compounds are disclosed in which the aryl group is poly-substituted with suitable electron-donating groups such that the light-emitting pattern of the molecule results in a very high luminescent count, thus providing for a sensitive and precise assay for haptens, analytes, polynucleotides and the like. These substituted aryl-containing 1,2-dioxetane compounds can be used as direct labels in an immunoassay or when derivatized with an appropriate leaving group, can be used as a substrate for a enzyme immunoassay. The unusual chemiluminescence of the compounds allows the timing of the luminescent reaction to be exactly controlled.
    Type: Grant
    Filed: October 30, 1992
    Date of Patent: February 18, 1997
    Assignee: Abbott Laboratories
    Inventors: Nai-Yi Wang, Roger C. Hu
  • Patent number: 5463027
    Abstract: This disclosure related to a method and reagents for determining tetrahydrocannabinoids (THC) and THC metabolites in a biological fluid such as urine. In particular, this disclosure relates to a fluorescence polarization immunoassay procedure for determining the presence of THC and to a novel class of tracer compounds employed as reagents in such procedures. The procedure described also provides for novel wash reagent for a THC fluorescence polarization assay.
    Type: Grant
    Filed: August 10, 1994
    Date of Patent: October 31, 1995
    Assignee: Abbott Laboratories
    Inventors: Nai-Yi Wang, Robert E. Dubler, Frank S. Ungemach, Roland L. Walters, Susan A. Thacker
  • Patent number: 5427960
    Abstract: The present invention is directed to a fluorescence polarization immunoassay for cyclosporin A and metabolites thereof. The present invention also relates to novel cyclosporin A derivative compounds useful in fluorescence polarization techniques. Included among the novel compounds are cyclosporin A derivatives where the amino acid in the first position is altered. The cyclosporin A derivatives are useful in forming immunogens for raising antibodies specific to cyclosporin A and metabolites thereof.
    Type: Grant
    Filed: October 5, 1994
    Date of Patent: June 27, 1995
    Assignee: Abbott Laboratories
    Inventors: Nai-Yi Wang, Philip P. Wang, Marjorie A. Morrison
  • Patent number: 5264373
    Abstract: This disclosure related to a method and reagents for determining tetrahydrocannabinoids (THC) and THC metabolites in a biological fluid such as urine. In particular, this disclosure relates to a fluorescence polarization immunoassay procedure for determining the presence of THC and to a novel class of tracer compounds employed as reagents in such procedures. The procedure described also provides for novel wash reagent for a THC fluorescence polarization assay.
    Type: Grant
    Filed: September 1, 1992
    Date of Patent: November 23, 1993
    Assignee: Abbott Laboratories
    Inventors: Nai-Yi Wang, Robert E. Dubler, Frank S. Ungemach, Roland L. Walters, Susan A. Thacker
  • Patent number: 5239057
    Abstract: The present invention is directed to a fluorescence polarization immunoassay for cyclosporin A and metabolites thereof. The present invention also relates to novel cyclosporin A derivative compounds useful in fluorescence polarization techniques. Included among the novel compounds are cyclosporin A derivatives where the amino acid in the first position is altered. The cyclosporin A derivatives are useful in forming immunogens for raising antibodies specific to cyclosporin A and metabolites thereof.
    Type: Grant
    Filed: October 15, 1991
    Date of Patent: August 24, 1993
    Assignee: Abbott Laboratories
    Inventors: Nai-Yi Wang, Philip P. Wang, Marjorie A. Morrison
  • Patent number: 5144030
    Abstract: This disclosure related to a method and reagents for determining tetrahydrocannabinoids (THC) and THC metabolites in a biological fluid such as urine. In particular, this disclosure relates to a fluorescence polarization immunoassay procedure for determining the presence of THC and to a novel class of tracer compounds employed as reagents in such procedures. The procedure described also provides for novel wash reagent for a THC fluorescence polarization assay.
    Type: Grant
    Filed: June 12, 1989
    Date of Patent: September 1, 1992
    Assignee: Abbott Laboratories
    Inventors: Nai-Yi Wang, Robert E. Dubler, Frank S. Ungemach, Roland L. Walters, Susan A. Thacker
  • Patent number: 5073629
    Abstract: A fluorescence polarization immunoassay for detecting the presence of methadone in a test sample is provided, based upon competition between methadone and a fluorescently labeled tracer for the binding sites on an antibody specific for methadone. The concentration of methadone in the sample determines the amount of tracer that binds to the antibody. The amount of tracer-antibody complex formed can be quantitatively measured and is inversely proportional to the quantity of methadone in the sample. Tracers used as reagents and immunogens used to raise antibodies for use as reagents are also disclosed.
    Type: Grant
    Filed: January 23, 1989
    Date of Patent: December 17, 1991
    Assignee: Abbott Laboratories
    Inventors: Robert E. Dubler, Susan A. Thacker, John A. Walling, Nai-Yi Wang
  • Patent number: 4632929
    Abstract: Compounds of the formulae: ##STR1## wherein, Z and Y are each alkylene or oxy-alkylene containing one to about five carbon atoms in the principal chain or said alkylene substituted with OH, alkanoyloxy, alkoxy, mercapto or alkylmercapto;each of R.sub.1, R.sub.2 and R.sub.3 is independently H, alkyl, aryl, halo, alkoxy, alkenyloxy, alkylsulfinyl, alkylsulfonyl, alkylmercapto, cyano, carboxy, carbalkoxy, carboxamido, sulfamoyl, trifluoromethyl, hydroxy, hydroxyalkyl, acyloxy, alkylamino, sulfonylamino, or acylamino; or R.sub.1 and R.sub.2, when taken together, form a methylenedioxy or --O--CO--O--;Ar is heteroaryl, cycloalkyl or ##STR2## wherein, R.sub.1, R.sub.2 and R.sub.3 are as hereindescribed; and R is H, alkyl, cycloalkyl, aryl, aralkyl, alkenyl, alkynyl, carboalkoxy, or CONR.sub.4 R.sub.5 wherein each of R.sub.4 and R.sub.5 is H or alkyl; wherein the total number of carbon atoms in each hydrocarbyl group is up to 10; and ##STR3## wherein, each of R.sub.1 and R.sub.
    Type: Grant
    Filed: September 23, 1985
    Date of Patent: December 30, 1986
    Assignee: USV Pharmaceutical Corp.
    Inventors: John T. Suh, Rack H. Chung, deceased, Nai-Yi Wang, Jeffrey N. Barton
  • Patent number: 4569941
    Abstract: Compounds of the formulae: ##STR1## wherein, Z and Y are each alkylene or oxy-alkylene containing one to about five carbon atoms in the principal chain or said alkylene substituted with OH, alkanoyloxy, alkoxy, mercapto or alkylmercapto;each of R.sub.1, R.sub.2 and R.sub.3 is independently H, alkyl, aryl, halo, alkoxy, alkenyloxy, alkylsulfinyl, alkylsulfonyl, alkylmercapto, cyano, carboxy, carbalkoxy, carboxamido, sulfamoyl, trifluoromethyl, hydroxy, hydroxyalkyl, acyloxy, alkylamino, sulfonylamino, or acylamino; or R.sub.1 and R.sub.2, when taken together, form a methylenedioxy or --O--CO--O--;Ar is heteroaryl, cycloalkyl or ##STR2## wherein, R.sub.1, R.sub.2 and R.sub.3 are as hereindescribed; andR is H, alkyl, cycloalkyl, aryl, aralkyl, alkenyl, alkynyl, carboalkoxy, or CONR.sub.4 R.sub.5 wherein each of R.sub.4 and R.sub.5 is H or alkyl; wherein the total number of carbon atoms in each hydrocarbyl group is up to 10; and ##STR3## wherein, each of R.sub.1 and R.sub.
    Type: Grant
    Filed: January 17, 1985
    Date of Patent: February 11, 1986
    Assignee: USV Pharmaceutical Corp.
    Inventors: John T. Suh, Rack H. Chung, deceased, Nai-Yi Wang, Jeffrey N. Barton
  • Patent number: 4342692
    Abstract: Compounds of the formulae: ##STR1## wherein, Z and Y are each alkylene containing one to about five carbon atoms in the principal chain or said alkylene substituted with OH, alkanoyloxy, alkoxy, mercapto or alkylmercapto;each of R.sub.1, R.sub.2 and R.sub.3 is independently H, alkyl, aryl, halo, alkoxy, alkenyloxy, alkylsulfinyl, alkylsulfonyl, alkylmercapto, cyano, carboxy, carbalkoxy, carboxamido, sulfamoyl, trifluoromethyl, hydroxy, hydroxyalkyl, acyloxy, alkylamino, sulfonylamino, or acylamino; and R.sub.1 and R.sub.2, when taken together, form a methylenedioxy or --O--CO--O--;Ar is heteroaryl, cycloalkyl or ##STR2## wherein, R.sub.1, R.sub.2 and R.sub.3 are as hereindescribed; andR is H, alkyl, cycloalkyl, aryl, aralkyl, alkenyl, alkynyl, carboalkoxy, or CONR.sub.4 R.sub.5 wherein each of R.sub.4 and R.sub.5 is H or alkyl; wherein the total number of carbon atoms in each hydrocarbyl group is up to 10;and ##STR3## wherein, each of R.sub.1 and R.sub.
    Type: Grant
    Filed: October 20, 1980
    Date of Patent: August 3, 1982
    Assignee: USV Pharmaceutical Corporation
    Inventors: John T. Suh, Rack H. Chung, Nai-Yi Wang, Jeffrey N. Barton