Patents by Inventor Roberta Buma Bursi

Roberta Buma Bursi 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).

  • Orally active 7.alpha.-alkyl androgens
    Publication number: 20040209853
    Abstract: Orally Active androgens are derivative of 7&agr;-methyl-19-nortestosterone. The compounds satisfy formula (I) wherein R1 is O, (H,H), (H,OR), NOR, with R being hydrogen, (C1-6) alkyl, or (C1-6) acyl; R2 is ethyl optionally substituted by halogen; R3 is hydrogen, (C1-2) alkyl, or ethenyl; R4 is (C1-2) alkyl; R5 is hydrogen, or (C1-15)acyl; and the dotted lines indicate optional bonds.
    Type: Application
    Filed: April 29, 2004
    Publication date: October 21, 2004
    Inventors: Jaap Louw van der, Dirk Leysen, Roberta Buma Bursi
  • 14&bgr;,15&bgr;-methylene-17&agr;-hydroxymethyl-androgens
    Patent number: 6706700
    Abstract: The disclosed invention relates to the unexpected finding of novel steroids which are characterized by a 14&bgr;,15&bgr;-cyclopropane ring and a 17&agr; hydroxymethyl group. These steroids according to the invention are found to have in common an androgenic activity. They can be used for the preparation of an agent for male contraception, as well as for the preparation of a medicament for the treatment of androgen insufficiency.
    Type: Grant
    Filed: September 11, 2002
    Date of Patent: March 16, 2004
    Assignee: Akzo-Nobel, N.V.
    Inventors: Dirk Leysen, Jaap Van der Louw, Roberta Buma Bursi, Marcel Evert De Gooyer
  • Novel androgens
    Publication number: 20030100543
    Abstract: The disclosed invention relates to the unexpected finding of novel steroids which are characterized by a 14&bgr;,15&bgr;-cyclopropane ring and a 17&agr; hydroxymethyl group. These steroids according to the invention are found to have in common an androgenic activity. They can be used for the preparation of an agent for male contraception, as well as for the preparation of a medicament for the treatment of androgen insufficiency.
    Type: Application
    Filed: September 11, 2002
    Publication date: May 29, 2003
    Inventors: Dirk Leysen, Jaap Van der Louw, Roberta Buma Bursi, Marcel Evert De Gooyer