Patents by Inventor Krishnaiah Abburi

Krishnaiah Abburi 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).

  • Adjusting yield of a manufacturing process for energetic compounds through solubility modification
    Patent number: 8002917
    Abstract: A method of adjusting the yield of a manufactured compound comprising primarily two energetic materials to yield a product comprising primarily one of the two energetic materials. Specifically, embodiments of the present invention provide a method of purifying a compound primarily comprising RDX and HMX to achieve a desired purity of RDX with an acceptable yield percentage. By adding sufficient acetonitrile (ACN) to the manufactured compound to dissolve it and form a solution; adding a pre-specified volume of water to the resultant solution and stirring sufficiently to precipitate at least the RDX; separating and drying the precipitate, a pre-specified purity and yield percentage of RDX may be obtained by varying the volume of water added. The process uses relatively environmentally benign recyclable solvents at ambient temperature and pressure reducing both environmental impact and energy costs.
    Type: Grant
    Filed: February 9, 2009
    Date of Patent: August 23, 2011
    Assignee: The United States of America as represented by the Secretary of the Army
    Inventors: Veera M. Boddu, Reddy Damavarapu, Krishnaiah Abburi
  • ADJUSTING YIELD OF A MANUFACTURING PROCESS FOR ENERGETIC COMPOUNDS THROUGH SOLUBILITY MODIFICATION
    Publication number: 20100200128
    Abstract: A method of adjusting the yield of a manufactured compound comprising primarily two energetic materials to yield a product comprising primarily one of the two energetic materials. Specifically, embodiments of the present invention provide a method of purifying a compound primarily comprising RDX and HMX to achieve a desired purity of RDX with an acceptable yield percentage. By adding sufficient acetonitrile (ACN) to the manufactured compound to dissolve it and form a solution; adding a pre-specified volume of water to the resultant solution and stirring sufficiently to precipitate at least the RDX; separating and drying the precipitate, a pre-specified purity and yield percentage of RDX may be obtained by varying the volume of water added. The process uses relatively environmentally benign recyclable solvents at ambient temperature and pressure reducing both environmental impact and energy costs.
    Type: Application
    Filed: February 9, 2009
    Publication date: August 12, 2010
    Inventors: VEERA M BODDU, Reddy Damavarapu, Krishnaiah Abburi