Patents by Inventor James M. O'Donnell, Sr.

James M. O'Donnell, Sr. 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).

  • Method of coating materials and materials formed thereby
    Patent number: 6515177
    Abstract: A method of forming a methylol urea prepolymer and a particle coated in with the prepolymer. The method involves providing a source of methylol urea and a source of aldehyde and reacting the urea and the aldehyde in the presence of an excess of urea to form the methylol urea prepolymer. The coated particle is preferably a controlled-release fertilizer particle. The particle is a substrate coated with a substantially uniform coating comprising a total nitrogen content ranging from about 39N to about 42N. The coating includes a low molecular weight methylene urea compounds.
    Type: Grant
    Filed: July 2, 2001
    Date of Patent: February 4, 2003
    Assignee: The Homestead Corporation
    Inventor: James M. O'Donnell, Sr.
  • Method of coating materials and materials formed thereby
    Patent number: 6432156
    Abstract: A method of forming a methylol prepolymer and a particle coated in with the prepolymer. The method involves providing a source of methylol urea and a source of aldehyde and reacting the urea and the aldehyde in the presence of an excess of urea to form the methylol urea prepolymer. The coated particle is preferably a controlled-release fertilizer particle. The particle is a substrate coated with a substantially uniform coating compromising a total nitrogen content ranging from about 39N to about 42N. The coating includes a low molecular weight methylene urea compounds.
    Type: Grant
    Filed: November 17, 2000
    Date of Patent: August 13, 2002
    Assignee: The Homestead Corp.
    Inventor: James M. O'Donnell, Sr.