Patents by Inventor Gerrit Ettema

Gerrit Ettema 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).

  • Process of making crystalline Type II aripiprazole
    Publication number: 20060258673
    Abstract: Crystalline aripiprazole Type II can be formed without solid state heat treatment. Instead a liquid is used such as in crystallizing from a solvent, especially 2-propanol, dimethyl sulfoxide, or a combination thereof with ethyl acetate, or in a solvent mediated solid-solid transformation, typically in ethyl acetate.
    Type: Application
    Filed: March 17, 2006
    Publication date: November 16, 2006
    Inventors: Gerrit Ettema, Raymond Westheim, Faysal Kalmoua
  • Process for making crystalline donepezil hydrochloride monohydrate
    Publication number: 20060258705
    Abstract: Solvent mediated polymorphic transformations of crystalline donepezil hydrochloride monohydrate are reduced by using a C5-C8 hydrocarbon as a protecting liquid.
    Type: Application
    Filed: March 17, 2006
    Publication date: November 16, 2006
    Inventor: Gerrit Ettema
  • Pharmaceutical tablets of crystalline Type II aripiprazole
    Publication number: 20060257471
    Abstract: Crystalline aripiprazole Type II can be formulated into pharmaceutical tablets having reduced dissolution profile variability upon storage.
    Type: Application
    Filed: March 17, 2006
    Publication date: November 16, 2006
    Inventors: Gerrit Ettema, Raymond Westheim, Faysal Kalmoua, Korinde Jansen, Farid Dorkoosh
  • Process of making crystalline aripiprazole
    Publication number: 20060142579
    Abstract: Crystalline aripiprazole Form B can be formed by crystallizing from a solvent selected from 1-propanol, 2-propanol, 1-butanol, ethyl acetate, acetonitrile or a combination thereof.
    Type: Application
    Filed: November 18, 2005
    Publication date: June 29, 2006
    Inventors: Gerrit Ettema, Raymond Westheim, Faysal Kalmoua
  • Crystalline aripiprazole solvates
    Publication number: 20060142299
    Abstract: Alcoholates of aripiprazole are useful as pharmaceuticals and/or as intermediates in making aripiprazole Form A or Form B.
    Type: Application
    Filed: November 18, 2005
    Publication date: June 29, 2006
    Inventors: Gerrit Ettema, Raymond Westheim, Faysal Kalmoua