Patents by Inventor Keith S. Lienhop

Keith S. Lienhop 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).

  • Long acting GI and esophageal protectant
    Patent number: 5858391
    Abstract: A bioadherent, orally ingestible system, which comprises: a water-in-oil emulsion system having at least two phases, one phase comprises from about 75% to about 99% by volume of an internal hydrophylic phase and the other phase comprises from about 25% to about 1% by volume of an external hydrophobic phase, wherein the external hydrophobic phase comprises two components, one component being about 3% to about 97% by volume of the hydrophobic phase of a hydrophobic oil and the other being about 97% to about 3% of an emulsifier having a HLB value less than about 10.
    Type: Grant
    Filed: May 28, 1997
    Date of Patent: January 12, 1999
    Assignee: KV Pharmaceutical Company
    Inventors: Robert C. Cuca, Keith S. Lienhop, Thomas Charles Riley, Jr., Mitchell I. Kirschner, R. Saul Levinson
  • Tastemasked liquid pharmaceutical delivery system
    Patent number: 5730997
    Abstract: A substantially tasteless liquid phramaceutical delivery system containing an active material and a high osmolarity aqueous system comprising (i) water; (ii) about 20% to about 45% by weight sugar derivative; (iii) about 10% to about 15% by weight hydrogenated maltose syrup; and (iv) about 0% to about 35% by weight polyhydroxy alcohol.
    Type: Grant
    Filed: September 11, 1996
    Date of Patent: March 24, 1998
    Assignee: KV Pharmaceutical Company
    Inventors: Keith S. Lienhop, Robert C. Cuca, Thomas Charles Riley, Jr., R. Saul Levinson
  • Long acting GI and esophageal protectant
    Patent number: 5670163
    Abstract: A bioadherent, orally ingestible system, which comprises: a water-in-oil emulsion system having at least two phases, one phase comprises from about 75% to about 99% by volume of an internal hydrophylic phase and the other phase comprises from about 25% to about 1% by volume of an external hydrophobic phase, wherein the external hydrophobic phase comprises two components, one component being about 3% to about 97% by volume of the hydrophobic phase of a hydrophobic oil and the other being about 97% to about 3% of an emulsifier having a HLB value less than about 10.
    Type: Grant
    Filed: May 2, 1995
    Date of Patent: September 23, 1997
    Assignee: KV Pharmaceuticals Company
    Inventors: Robert C. Cuca, Keith S. Lienhop, Thomas Charles Riley, Jr., Mitchell I. Kirschner, R. Saul Levinson
  • Bioadhesive pharmaceutical delivery system
    Patent number: 5554380
    Abstract: A solid or semi-solid bioadherent, orally ingestible drug delivery system containing a water-in-oil system having at least two phases, one phase comprises from about 25% to about 75% by volume of an internal hydrophilic phase and the other phase comprises from about 25% to about 75% by volume of an external hydrophobic phase and wherein the external hydrophobic phase is comprised of three components, a) an emulsifier, b) a glyceride ester and c) a wax material.
    Type: Grant
    Filed: May 15, 1995
    Date of Patent: September 10, 1996
    Assignee: KV Pharmaceutical Company
    Inventors: Robert C. Cuca, Keith S. Lienhop, Thomas C. Riley, Jr., R. Saul Levinson, Mitchell I. Kirschner