Patents by Inventor Alice C. Liu

Alice C. Liu 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).

  • Sulfhydryl compounds for suppressing the inhibitory effects of NAD degradation products on LD-L activity
    Patent number: 4983513
    Abstract: A liquid coenzyme reagent comprises the coenzyme nicotinamide adenine dinucleotide (NAD), or nicotinamide adenine dinucleotide phosphate (NADP), and a sulfhydryl compound capable of counteracting the inhibitory effects of NAD (or NADP) degradation products on LD-L activity. The reagent is maintained at a pH of less than about 31/2. The liquid reagent has a shelf life of at least about 2 years, maintaining a LD-L activity of at least 90% that of the reagent when fresh, when stored at a temperature of from 2.degree.-8.degree. C.
    Type: Grant
    Filed: March 28, 1986
    Date of Patent: January 8, 1991
    Assignee: Beckman Instruments, Inc.
    Inventors: Tsung-I Lin, Alice C. Liu