Patents by Inventor Stephen Lerch

Stephen Lerch 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).

  • Control Of N-(Phosphonomethyl) Iminodiacetic Acid Conversion In Manufacture Of Glyphosate
    Publication number: 20240094120
    Abstract: This invention relates to the preparation of N-(phosphonomethyl)glycine (“glyphosate”) from N-(phosphonomethyl)iminodiacetic acid (“PMIDA”), and more particularly to methods for control of the conversion of PMIDA, for the identification of reaction end points relating to PMIDA conversion and the preparation of glyphosate products having controlled PMIDA content.
    Type: Application
    Filed: September 22, 2023
    Publication date: March 21, 2024
    Inventors: Leonard AYNARDI, David Z. BECHER, Robert E. BYRD, Eduardo Aurelio CASANOVA, James P. COLEMAN, David R. EATON, Walter K. GAVLICK, Eric A. HAUPFEAR, Oliver LERCH, Carl MUMFORD, Alfredo OBA, Stephen D. PROSCH, Peter E. ROGERS, Bart ROOSE, Mark D. SCAIA, Lowell R. SMITH, Donald D. SOLETA, John WAGENKNECHT
  • Method for injection molding a roller body from thermoplastic materials
    Patent number: 6426028
    Abstract: A roller body having a shaft formed from a first thermoplastic material and defining at least one roller. The shaft is a single component injection-molded shaft. A casing at least partially encases the roller and is formed from a second thermoplastic material different from the first thermoplastic material. The casing is bonded to the roller by an injection-molding process.
    Type: Grant
    Filed: February 16, 2000
    Date of Patent: July 30, 2002
    Assignees: Sarnatech Spritzguss AG, Rutishauser Data AG
    Inventors: Stephen Lerch, Thomas Rutishauser