Patents by Inventor Andrew K. Schwartz, Jr.

Andrew K. Schwartz, Jr. 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).

  • Energy recovery system
    Patent number: 8753876
    Abstract: An apparatus and method for recovering thermal energy from boiler stack exhaust gases and using the thermal energy in biomaterial processing. The apparatus and method include means to improve the boiler's operation and reduce emission of certain regulated compounds.
    Type: Grant
    Filed: March 16, 2009
    Date of Patent: June 17, 2014
    Inventor: Andrew K. Schwartz, Jr.
  • ENERGY RECOVERY SYSTEM
    Publication number: 20090229595
    Abstract: An apparatus and method for recovering thermal energy from boiler stack exhaust gases and using the thermal energy in biomaterial processing. The apparatus and method include means to improve the boiler's operation and reduce emission of certain regulated compounds.
    Type: Application
    Filed: March 16, 2009
    Publication date: September 17, 2009
    Inventor: Andrew K. Schwartz, JR.
  • Process for the preparation of esters of maleic acid with monohydric alcohols
    Patent number: 3979443
    Abstract: Preparation of esters of maleic acid with monohydric alcohol by forming maleic anhydride by oxidizing a hydrocarbon in a maleic anhydride reaction, scrubbing the gaseous effluent to form aqueous maleic solution which is reacted and dehydrated in a first stage with monohydric alcohol in a distillation column. Reacting the product of the first stage under pressure and under conditions such that boiling occurs.
    Type: Grant
    Filed: August 25, 1972
    Date of Patent: September 7, 1976
    Assignee: Petro-Tex Chemical Corporation
    Inventors: Andrew K. Schwartz, Jr., Stone D. Cooley