Patents by Inventor Harry N. Condos

Harry N. Condos 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).

  • Process for the production of polyalkylaromatic polysulfonic acids and recovery by heavy phase separation
    Patent number: 4943656
    Abstract: This invention relates to novel processes for the production of enhanced yields of polyalkylaromatic polysulfonic acids. More particularly, the invention pertains to processes for sulfonating polyalkylaromatic compounds employing sulfuric acid treatment and recovering the polyalkylaromatic polysulfonic acid produced thereby after formation of a three phase system by the addition of controlled amounts of water, causing the polysulfonic acid to accumulate in the bottom layer, with which it is readily separated.
    Type: Grant
    Filed: July 19, 1984
    Date of Patent: July 24, 1990
    Assignee: King Industries, Inc.
    Inventors: Lawrence V. Gallacher, Harry N. Condos