Patents by Inventor Andrew Michael Semple

Andrew Michael Semple 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).

  • Increased longevity of the nitrogen content of soil through improved liquid delivery formulations of urease inhibitors and/or nitrification inhibitors designed for urea and manure based fertilizers
    Patent number: 9637420
    Abstract: Increasing longevity of the nitrogen content of soil through improved liquid delivery formulations of urease inhibitors and/or nitrification inhibitors designed to apply to fertilizers, especially urea and manure based fertilizers These delivery formulations provide an environmentally sound and inherently safe solvating system that improves the storage stability of the urease inhibitors by utilizing aprotic solvents, maintain the urease inhibitors and/or nitrification inhibitors in solution to storage temperatures of at least 10° C. and provides improved application to fertilizer of urease and/or nitrification inhibitors. These delivery formulations enable safe storage, transport and subsequent application or blending with urea based or manure based fertilizers that can be applied to soil in either a liquid or granular form to provide improved nitrogen retention in the soil for uptake for plant life.
    Type: Grant
    Filed: November 25, 2014
    Date of Patent: May 2, 2017
    Inventors: Gary David McKnight, Randall Linwood Rayborn, David Bruce Parker, Wei Xu, Zehui Yang, Raymond Patrick Perkins, Andrew Michael Semple
  • INCREASED LONGEVITY OF THE NITROGEN CONTENT OF SOIL THROUGH IMPROVED LIQUID DELIVERY FORMULATIONS OF UREASE INHIBITORS AND/OR NITRIFICATION INHIBITORS DESIGNED FOR UREA AND MANURE BASED FERTILIZERS
    Publication number: 20150143860
    Abstract: Increasing longevity of the nitrogen content of soil through improved liquid delivery formulations of urease inhibitors and/or nitrification inhibitors designed to apply to fertilizers, especially urea and manure based fertilizers These delivery formulations provide an environmentally sound and inherently safe solvating system that improves the storage stability of the urease inhibitors by utilizing aprotic solvents, maintain the urease inhibitors and/or nitrification inhibitors in solution to storage temperatures of at least 10° C. and provides improved application to fertilizer of urease and/or nitrification inhibitors. These delivery formulations enable safe storage, transport and subsequent application or blending with urea based or manure based fertilizers that can be applied to soil in either a liquid or granular form to provide improved nitrogen retention in the soil for uptake for plant life.
    Type: Application
    Filed: November 25, 2014
    Publication date: May 28, 2015
    Inventors: Gary David McKnight, Randall Linwood Rayborn, David Bruce Parker, Wei Xu, Zehui Yang, Raymond Patrick Perkins, Andrew Michael Semple