Patents by Inventor Ralph L. Fogwell

Ralph L. Fogwell 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: 4610687
    Abstract: A method for reducing the time to estrus onset and duration of estrus in female bovines, is described. The method involves a sustained low level release of progestin over time with injection of a luteolytic agent, particularly a prostaglandin, towards the end of the time such that there is an overlap of progestin and prostaglandin administration. The sustained release is preferably by means of a vaginal implant. The method is faster and easier to use than prior art methods.
    Type: Grant
    Filed: August 6, 1984
    Date of Patent: September 9, 1986
    Assignee: Board of Trustees Operating Michigan State University
    Inventor: Ralph L. Fogwell