The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 11, 2006
Filed:
Jan. 19, 2001
Eberhard Nieschlag, Muenster, DE;
Axel Kamischke, Muenster, DE;
Michael Oettel, Jena, DE;
Alexander Ruebig, Berlin, DE;
Ekkerhard Schillinger, Berlin, DE;
Ursula-friederike Habenicht, Berlin, DE;
Eberhard Nieschlag, Muenster, DE;
Axel Kamischke, Muenster, DE;
Michael Oettel, Jena, DE;
Alexander Ruebig, Berlin, DE;
Ekkerhard Schillinger, Berlin, DE;
Ursula-Friederike Habenicht, Berlin, DE;
Schering AG, Berlin, DE;
Abstract
A formulation for male contraception comprising a progestin possessing both estrogenic and androgenic properties is remarkably effective for spermatogenesis suppression in males. The progestin Norethisterone (NET), particularly its derivatives Norethisterone acetate and Norethisterone enanthate in sufficient doses induce oligozoospermia or azoospermia in males. Formulations further comprising an androgen, such as a testosterone derivative such as a testosterone ester, particularly testosterone undecanoate, are especially effective male contraceptive formulations.