Patents by Inventor Wei C. Liao

Wei C. Liao 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).

  • Medicament adsorbates of analgesics with complex magnesium aluminum silicate and their preparation
    Patent number: 4761274
    Abstract: A medicament adsorbate of analgesics and process for making same. The medicament adsorbate comprises a complex magnesium aluminum silicate having sorbed therein an analgesic. The complex magnesium aluminum silicate has the following typical chemical analysis:______________________________________ Ratio to Percent by Weight Aluminum Oxide ______________________________________ Silicon dioxide 56 to 59 14.0 to 29.5 Magnesium oxide 21 to 24 5.2 to 12.0 Aluminum oxide 2.0 to 4.0 1 Ferric oxide 0.4 to 0.6 Calcium oxide 1.1 to 1.5 Sodium oxide 2.5 to 3.5 Potassium oxide 0.5 to 1.0 Ignition Loss 5.5 to 12.
    Type: Grant
    Filed: October 16, 1987
    Date of Patent: August 2, 1988
    Assignee: Warner-Lambert Company
    Inventors: John Denick, Jr., David Peters, Anil K. Talwar, Wei C. Liao
  • Medicament adsorbates of antiasthmatics with complex magnesium aluminum silicate and their preparation
    Patent number: 4758425
    Abstract: A medicament adsorbate of antiasthmatics and process for making same. The medicament adsorbate comprises a complex magnesium aluminum silicate having sorbed therein an antiasthmatic. The complex magnesium aluminum silicate has the following typical chemical analysis:______________________________________ Ratio to Percent by Weight Aluminum Oxide ______________________________________ Silicon dioxide 56 to 59 14.0 to 29.5 Magnesium oxide 21 to 24 5.2 to 12.0 Aluminum oxide 2.0 to 4.0 1 Ferric oxide 0.4 to 0.6 Calcium oxide 1.1 to 1.5 Sodium oxide 2.5 to 3.5 Potassium oxide 0.5 to 1.0 Ignition Loss 5.5 to 12.
    Type: Grant
    Filed: October 16, 1987
    Date of Patent: July 19, 1988
    Assignee: Warner-Lambert Company
    Inventors: John Denick, Jr., David Peters, Anil K. Talwar, Wei C. Liao
  • Medicament adsorbates of decongestants with complex magnesium aluminum silicate and their preparation
    Patent number: 4758424
    Abstract: A medicament adsorbate of decongestants and process for making same. The medicament adsorbate comprises a complex magnesium aluminum silicate having sorbed therein a decongestant. The complex magnesium aluminum silicate has the following typical chemical analysis:______________________________________ Ratio to Percent by Weight Aluminum Oxide ______________________________________ Silicon dioxide 56 to 59 14.0 to 29.5 Magnesium oxide 21 to 24 5.2 to 12.0 Aluminum oxide 2.0 to 4.0 1 Ferric oxide 0.4 to 0.6 Calcium oxide 1.1 to 1.5 Sodium oxide 2.5 to 3.5 Potassium oxide 0.5 to 1.0 Ignition Loss 5.5 to 12.
    Type: Grant
    Filed: October 16, 1987
    Date of Patent: July 19, 1988
    Assignee: Warner-Lambert Company
    Inventors: John Denick, Jr., David Peters, Anil K. Talwar, Wei C. Liao
  • Medicament adsorbates with complex magnesium aluminum silicate and their preparation
    Patent number: 4711774
    Abstract: A medicament adsorbate and process for making same. The medicament adsorbate comprises a complex magnesium aluminum silicate having sorbed therein a medicament drug. The complex magnesium aluminum silicate has the following typical chemical analysis:______________________________________ Ratio to Percent by Weight Aluminum Oxide ______________________________________ Silicon dioxide 56 to 59 14.0 to 29.5 Magnesium oxide 21 to 24 5.2 to 12.0 Aluminum oxide 2.0 to 4.0 1 Ferric oxide 0.4 to 0.6 Calcium oxide 1.1 to 1.5 Sodium oxide 2.5 to 3.5 Potassium oxide 0.5 to 1.0 Ignition Loss 5.5 to 12.
    Type: Grant
    Filed: March 27, 1986
    Date of Patent: December 8, 1987
    Assignee: Warner-Lambert Company
    Inventors: John Denick, Jr., David Peters, Anil K. Talwar, Wei C. Liao