Patents by Inventor Walter E. Rogers

Walter E. Rogers 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
  • Underground heating and cooling system
    Patent number: 4234037
    Abstract: The present invention relates to a heating and cooling system for structures such as residential dwellings. More particularly, the heating and cooling system includes one or more conduits disposed approximately six (6) feet underground and having opposite end extremities communicatively connected to the structure so as to define a closed air circulation system through the structure and one or more conduits. A fan assembly including appropriate controls is provided to induce and circulate air through the structure and through the one or more conduits such that a system of air may be continuously circulated from the structure through the underground disposed conduits and back through the structure.
    Type: Grant
    Filed: February 21, 1978
    Date of Patent: November 18, 1980
    Inventors: Walter E. Rogers, Preston C. Midgett