Patents by Inventor Renata M. Cox

Renata M. Cox 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).

  • Manufacture of alkylbenzenes
    Patent number: 5003119
    Abstract: A process for the manufacture of alkylbenzenes wherein a feed of fresh and recycle benzene and fresh olefin are reacted in the presence of an alkylation catalyst in an alkylator having at least two reaction stages wherein each stage is adiabatic. Essentially all of the olefin is completely reacted in each stage of the alkylator. Fresh olefin is fed into each stage of the alkylator. Preferred alkylbenzenes which are produced by this process are ethylbenzene and cumene.
    Type: Grant
    Filed: February 12, 1990
    Date of Patent: March 26, 1991
    Assignee: Lummus Crest, Inc.
    Inventors: Helion H. Sardina, Roger C. Johnson, John E. Paustian, Renata M. Cox