Patents by Inventor Emma Marta Ryde

Emma Marta Ryde 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: 3968201
    Abstract: A composition in the form of a solid shaped body adapted for insertion in the cavity of the eye and containing a substance having a topical effect on the eye, which composition comprises a mixture of 5 - 90 % of at least one lipophilic substance having a melting point of 37.degree. - 75.degree.C, 0 - 40 % of at least one water-soluble or water-swellable polymer in solid, finely-divided form, 0.05 - 30 % of at least one drug having a topical effect on the eye and 0.2 - 20 % of at least one water-insoluble lipophilic polymer having a softening temperature exceeding 70.degree.C and a melting point exceeding 85.degree.C and which is soluble in the lipophilic substance or substances in molten form to serve as stabilizer for the mixture, the percentages relating to percent by weight calculated on the total weight of the mixture.
    Type: Grant
    Filed: November 18, 1974
    Date of Patent: July 6, 1976
    Assignee: Pharmacia Aktiebolag
    Inventors: Emma Marta Ryde, Jan Erik Ekstedt