Patents by Inventor Cornelis J. M. van der Ven

Cornelis J. M. van der Ven 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).

  • Patent number: 5527543
    Abstract: Disclosed is a process of preparing granules involving first preparing a carrier comprising diluent, binder, and optionally a disintegrating agent. In a container separate from said carrier, a steroid, lubricant and, optionally, an antioxidant are dissolved in an, optionally pre-heated, organic solvent. The resulting solution is added to the carrier contained within an, e.g. vacuum mixer, followed by further blending of the mixture. The organic solvent is removed from the mixture. The mixture is blended further to form granules. The process may further include incorporating a flow enhancer such as colloidal silicon dioxide into the granules. A granule for making a pharmaceutical dosage unit is granule characterized in comprising: a) a carrier comprising diluent and binder, and b) a film coating said carrier, said film comprising desogestrel and a lubricant, and has the characteristic of by retaining 90% of the desogestrel at a pressure of 150 mbar and at a temperature of 70.degree. C. over 72 hours.
    Type: Grant
    Filed: December 29, 1994
    Date of Patent: June 18, 1996
    Assignee: Akzo Nobel N.V.
    Inventors: Jan H. Dopper, Cornelis J. M. Van Der Ven
  • Patent number: 5395627
    Abstract: Disclosed is a process of preparing granules involving first preparing a carrier comprising diluent, binder, and optionally a disintegrating agent. In a container separate from said carrier, asteroid, lubricant and, optionally, an antioxidant are dissolved in an, optionally pre-heated, organic solvent. The resulting solution is added to the carrier contained within an, e.g. vacuum mixer, followed by further blending of the mixture. The organic solvent is removed from the mixture. The mixture is blended further to form granules. The process may further include incorporating a flow enhancer such as colloidal silicon dioxide into the granules. A granule for making a pharmaceutical dosage unit is granule characterized in comprising: a) a carrier comprising diluent and binder, and b) a film coating said carrier, said film comprising desogestrel and a lubricant, and has the characteristic of by retaining 90% of the desogestrel at a pressure of 150 mbar and at a temperature of 70.degree. C. over 72 hours.
    Type: Grant
    Filed: September 4, 1992
    Date of Patent: March 7, 1995
    Assignee: Akzo N.V.
    Inventors: Jan H. Dopper, Cornelis J. M. van der Ven