Patents by Inventor Robert A. Maggio

Robert A. Maggio 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 synthesizing a zeolite catalyst on a pH controlled basis to improve catalyst life
    Patent number: 4804800
    Abstract: A process for preparing a zeolite, e.g. ZSM-5, under controlled conditions of initial pH adjustment with an acid, SiO.sub.2 /Al.sub.2 O.sub.3 mole ratio, and in the presence of sodium cations, is disclosed, as well as a process for using the same to synthesize olefins from methanol and/or dimethyl ether.
    Type: Grant
    Filed: November 16, 1987
    Date of Patent: February 14, 1989
    Assignee: Exxon Research & Engineering Co.
    Inventors: Arie Bortinger, Robert A. Maggio, Wim J. M. Pieters
  • Process for synthesizing a zeolite catalyst on a pH controlled basis to improve catalyst life
    Patent number: 4764356
    Abstract: A process for preparing a zeolite, e.g. ZSM-5, under controlled conditions of initial pH adjustment with an acid, SiO.sub.2 /Al.sub.2 O.sub.3 mole ratio, and in the presence of sodium cations, is disclosed, as well as a process for using the same to synthesize olefins from methanol and/or dimethyl ether.
    Type: Grant
    Filed: December 21, 1984
    Date of Patent: August 16, 1988
    Assignee: Exxon Research & Engineering Co.
    Inventors: Arie Bortinger, Robert A. Maggio, Wim J. M. Pieters
  • Electric display device
    Patent number: 4000437
    Abstract: A solid state light emitting display device utilizing two light emitting elements displayed in a single channel having ends in which each element is disposed closer to the ends of the channel than to each other.
    Type: Grant
    Filed: December 17, 1975
    Date of Patent: December 28, 1976
    Assignee: Integrated Display Systems Incorporated
    Inventors: Saul Lederhandler, Robert Maggio, Winthrop Blythe