Patents by Inventor Frederic W. Chapin

Frederic W. Chapin 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).

  • Virginiamycin mixture
    Patent number: 6548478
    Abstract: A mixture comprising: a) virginiamycin; b) a pharmaceutically acceptable and substantially anhydrous wetting agent including sodium lauryl sulfate; c) a sufficient amount of pharmaceutically acceptable buffering agent to provide a pH of from about 3 0 to about 7.0 when said mixture is added to water; and d) from about 0.5 weight percent to about 10 0 weight percent colloidal silicon dioxide, wherein the ratio of the weight percent of (b) to the weight percent of (a) percent by weight is at least about 1.5:1. The mixture is designed to be added to water to produce a stable suspension of the virginiamycin, which can then be applied to, for example, feed grain.
    Type: Grant
    Filed: October 24, 2001
    Date of Patent: April 15, 2003
    Assignee: Pfizer Inc.
    Inventors: James W. Carson, Frederic W. Chapin, Charles H. Fahrenholz
  • Virginiamycin mixture
    Publication number: 20020082201
    Abstract: A mixture comprising:
    Type: Application
    Filed: October 24, 2001
    Publication date: June 27, 2002
    Inventors: James W. Carson, Frederic W. Chapin
  • Virginiamycin mixture
    Publication number: 20010018417
    Abstract: A mixture comprising:
    Type: Application
    Filed: April 10, 2001
    Publication date: August 30, 2001
    Inventors: James W. Carson, Frederic W. Chapin, Charles H. Fahrenholz