Patents by Inventor Marianne Skvorecz nee Hajnoczy

Marianne Skvorecz nee Hajnoczy 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).

Coating ensuring a controlled release of active ingredients of biologically active compositions, particularly pharmaceutical compositions and a process for preparation of biologically active compositions ensuring controlled release of active ingredients

Patent number: 4267138

Abstract: A coating ensuring the controlled release of a biological active ingredient, which can be incorporated in the coating or is surrounded thereby, consists of a varnish-forming polymer selected from the group which consists of cellulose triacetate containing polyethylene glycol as an emollient and vinyl chloride-vinyl acetate copolymer with glycerol as an emollient, and an aqueous phase dispersed in the polymer and consisting of particles of a diameter up to 20 microns, the aqueous phase making up 2% to 30% of the volume of the coating. The active ingredient is preferably a pharmaceutical agent affecting the circulatory system or a psychotropic agent.

Type: Grant

Filed: September 19, 1977

Date of Patent: May 12, 1981

Assignee: Richter Gedeon Vegyeszeti Gyar Rt.

Inventors: Janos Dobo, Erzsebet Takacs, Gyozo Hortobagyi, Marianne Skvorecz nee Hajnoczy, Ilona Kolbe, Katalin Hoffmann nee Vas

Coating ensuring a controlled release of active ingredients of biologically active compositions, particularly pharmaceutical compositions and a process for preparation of biologically active compositions ensuring controlled release of active ingredients