Patents by Inventor Deng R. Hwang

Deng R. Hwang 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).

  • Phospholipid conjugates and their preparation
    Patent number: 5106963
    Abstract: Phospholipid conjugate compounds derived from cardiac glycosides and sters useful in liposome immunoassays are disclosed as well as their method of preparation.
    Type: Grant
    Filed: June 28, 1991
    Date of Patent: April 21, 1992
    Assignee: Miles, Inc., successor in interest to Technicon Instruments Corp.
    Inventors: Deng R. Hwang, Mary E. Scott, Eddie Hedaya
  • Substrates for .beta.-galactosidase
    Patent number: 5068180
    Abstract: A substrate for .beta.-galactosidase having the general formula ##STR1## wherein X is halogen; Y is halogen, lower alkyl or hydrogen; W is lower alkyl or hydrogen; and Z is nitro.
    Type: Grant
    Filed: November 8, 1989
    Date of Patent: November 26, 1991
    Assignee: Technicon Instruments Corporation
    Inventors: Deng R. Hwang, Mary Ellen A. Scott
  • Phospholipid conjugates and their preparation
    Patent number: 5053497
    Abstract: Phospholipid conjugate compounds derived from cardiac glycosides and steroids useful in liposome immunoassays are disclosed as well as their method of preparation.
    Type: Grant
    Filed: July 21, 1988
    Date of Patent: October 1, 1991
    Assignee: Technion Instruments Corporation
    Inventors: Deng R. Hwang, Mary E. Scott, Eddie Hedaya
  • Quaternized phthalocyanin derivatives
    Patent number: 4565688
    Abstract: New phthalocyanin derivatives which can be used to differentiate basophils from other blood cells are disclosed. The compounds to which the present invention are quaternary salts of a substituted phthalocyanin structure wherein the substitutions are each independently hydrogen, sulfonate, or a C.sub.1 -C.sub.7 hydrocarbon, optionally containing at least one heteroatom, with the proviso that at least one of them is ##STR1## in which R.sub.1 -R.sub.3 are each independently lower alkyls, cycloalkyls or olefins of which at least one is C.sub.2 -C.sub.4 and two may join to form a ring; R.sub.4 is hydrogen or a C.sub.1 -C.sub.3 alkyl; n is an integer from 1 to 6; M is a polyvalent metal ion. It is preferred that at least two and especially at least three substitutions have the structure so set forth.
    Type: Grant
    Filed: November 14, 1983
    Date of Patent: January 21, 1986
    Assignee: Technicon Instruments Corporation
    Inventors: Michael J. Malin, Bernard Loev, Deng R. Hwang