Patents by Inventor Narayana Venkata KALEVARU

Narayana Venkata KALEVARU 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 for preparation of dicarboxylic acids from saturated hydrocarbons or cycloaliphatic hydrocarbons by catalytic oxidation
    Patent number: 8536374
    Abstract: The present invention relates to a method for preparing dicarboxylic acids from saturated and cycloaliphatic hydrocarbons by oxidation at a reaction temperature comprised in the range of 25 to 300° C. in an autoclave using a solid heterogeneous catalyst. More particularly, the method of the invention relates to a method for preparing adipic acid (AA) from cyclohexane (CH) by selective oxidation.
    Type: Grant
    Filed: October 10, 2011
    Date of Patent: September 17, 2013
    Assignee: King Abdulaziz City for Science and Technology
    Inventors: Ahmad Alshammari, Narayana Venkata Kalevaru, Angela Koeckritz, Andreas Martin
  • METHOD FOR PREPARATION OF DICARBOXYLIC ACIDS FROM SATURATED HYDROCARBONS OR CYCLOALIPHATIC HYDROCARBONS BY CATALYTIC OXIDATION
    Publication number: 20120095258
    Abstract: The present invention relates to a method for preparing dicarboxylic acids from saturated and cycloaliphatic hydrocarbons by oxidation at a reaction temperature comprised in the range of 25 to 300° C. in an autoclave using a solid heterogeneous catalyst. More particularly, the method of the invention relates to a method for preparing adipic acid (AA) from cyclohexane (CH) by selective oxidation.
    Type: Application
    Filed: October 10, 2011
    Publication date: April 19, 2012
    Applicant: KING ABDULAZIZ CITY FOR SCIENCE AND TECHNOLOGY
    Inventors: Ahmad ALSHAMMARI, Narayana Venkata KALEVARU, Angela KOECKRITZ, Andreas MARTIN