Patents by Inventor Yolanda P. Quinn

Yolanda P. Quinn 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).

  • Neutral-cationic lipid for nucleic acid and drug delivery
    Patent number: 6974589
    Abstract: A lipid represented by the formula: wherein each of R1 and R2 is an alkyl or alkenyl chain having between about 8 to about 24 carbon atoms; n=0–20; L is selected from the group consisting of (i) —X—(C?O)—Y—, (ii) —X—(C?O)—, and (iii) —X—CH2—, wherein X and Y are independently selected from oxygen, NH, and a direct bond; and Z is a weakly basic moiety that has a pK of less than about 7.4 and greater than about 4.0 is described.
    Type: Grant
    Filed: October 10, 2000
    Date of Patent: December 13, 2005
    Assignee: Miza Corporation
    Inventors: Shi Kun Huang, Samuel Zalipsky, Wei-Ming Zhang, Bei Jin, Yolanda P. Quinn
  • Non-crystalline minoxidil composition
    Patent number: 5030442
    Abstract: An aqueous, noncrystalline minoxidil composition for topical use which has significantly improved flux of the drug through human cadaver skin. The composition contains minoxidil complexed with an amphipathic compound, oleic acid and with pharmaceutically acceptable excipients. The composition may be formulated in an aqueous vehicle, or dispersed in fluorochlorocarbon solvent for spray delivery from a self- propelled spray device.
    Type: Grant
    Filed: April 4, 1989
    Date of Patent: July 9, 1991
    Assignee: Liposome Technology, Inc.
    Inventors: Paul S. Uster, Yolanda P. Quinn
  • Non-crystalline minoxidil composition, its production and application
    Patent number: 4828837
    Abstract: An aqueous, noncrystalline minoxidil composition for topical use. The composition contains minoxidil complexed with an amphipathic compound having a pK less than about 5 and containing a single lipophilic chain moiety and a sulfate, sulfonate, phosphate and phosphonate polar moiety. The composition may be formulated in ointment form, in an aqueous vehicle, or dispersed in a fluorochlorocarbon solvent, for spray delivery from a self-propelled spray device.
    Type: Grant
    Filed: March 30, 1987
    Date of Patent: May 9, 1989
    Assignee: Liposome Technology, Inc.
    Inventors: Paul S. Uster, Yolanda P. Quinn