Patents by Inventor Shelia R. Billingsley

Shelia R. Billingsley 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).

  • Stable glassy state powder formulations
    Publication number: 20030215512
    Abstract: A powdered, dispersible composition having stable dispersibility over time is provided. The composition exhibits a characteristic glass transition temperature (Tg) and a recommended storage temperature (Ts), wherein the difference between Tg and Ts is at least about 10° C. (i.e. Tg−Ts is greater than 10° C.). The composition comprises a mixture of a pharmaceutically-acceptable glassy matrix and at least one pharmacologically active material within the glassy matrix. It may be further mixed with a powdered, pharmaceutically-acceptable carrier.
    Type: Application
    Filed: April 14, 2003
    Publication date: November 20, 2003
    Inventors: Linda C. Foster, Mei-chang Kuo, Shelia R. Billingsley
  • Stable glassy state powder formulations
    Patent number: 6589560
    Abstract: A powdered, dispersible composition having stable dispersibility over time is provided. The composition exhibits a characteristic glass transition temperature (Tg) and a recommended storage temperature (Ts), wherein the difference between Tg and Ts is at least about 10° C. (i.e. Tg−Ts is greater than 10° C.). The composition comprises a mixture of a pharmaceutically-acceptable glassy matrix and at least one pharmacologically active material within the glassy matrix. It may be further mixed with a powdered, pharmaceutically-acceptable carrier. It is particularly valuable in unit dosage form having a moisture barrier, in combination with appropriate labelling instructions.
    Type: Grant
    Filed: June 11, 2001
    Date of Patent: July 8, 2003
    Assignee: Nektar Therapeutics
    Inventors: Linda C. Foster, Mei-chang Kuo, Shelia R. Billingsley
  • Stable glassy state powder formulations
    Publication number: 20020141945
    Abstract: A powdered, dispersible composition having stable dispersibility over time is provided. The composition exhibits a characteristic glass transition temperature (Tg) and a recommended storage temperature (Ts), wherein the difference between Tg and Ts is at least about 10° C. (i.e. Tg−Ts is greater than 10° C.). The composition comprises a mixture of a pharmaceutically-acceptable glassy matrix and at least one pharmacologically active material within the glassy matrix. It may be further mixed with a powdered, pharmaceutically-acceptable carrier.
    Type: Application
    Filed: June 11, 2001
    Publication date: October 3, 2002
    Inventors: Linda C. Foster, Mei-Chang Kuo, Shelia R. Billingsley
  • Stable glassy state powder formulations
    Patent number: 6309671
    Abstract: A powdered, dispersible composition having stable dispersibility over time is provided. The composition exhibits a characteristic glass transition temperature (Tg) and a recommended storage temperature (Ts), wherein the difference between Tg and Ts is at least about 10° C. (i.e. Tg−Ts is greater than 10° C.). The composition comprises a mixture of a pharmaceutically-acceptable glassy matrix and at least one pharmacologically active material within the glassy matrix. It may be further mixed with a powdered, pharmaceutically-acceptable carrier. It is particularly valuable in unit dosage form having a moisture barrier, in combination with appropriate labelling instructions.
    Type: Grant
    Filed: October 14, 1997
    Date of Patent: October 30, 2001
    Assignee: Inhale Therapeutic Systems
    Inventors: Linda C. Foster, Mei-chang Kuo, Shelia R. Billingsley