Patents by Inventor Joseph T. Mullhaupt

Joseph T. Mullhaupt 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).

  • Enhanced gas separations and zeolite compositions therefor
    Patent number: 5554208
    Abstract: Pressure swing adsorption of air and other gas separation operations are carried out using specific preferred zeolite adsorbent compositions based on the symmetry of the framework atoms and cations therein. Specific SiO.sub.2 /Al.sub.2 O.sub.3 and cation/cation ratios for enhanced performance are identified. LiX adsorbent having a silica to alumina ratio on the order of 2.364 provides enhanced PSA performance.
    Type: Grant
    Filed: August 7, 1995
    Date of Patent: September 10, 1996
    Assignee: Praxair Technology, Inc.
    Inventors: Joseph T. Mullhaupt, Paula C. Stephenson
  • Enhanced gas separations and zeolite compositions therefor
    Patent number: 5441557
    Abstract: Pressure swing adsorption air and other gas separation operations are carried out using specific preferred zeolite adsorbent compositions based on the symmetry of the framework atoms and cations therein. Specific SiO.sub.2 /Al.sub.2 O.sub.3 and cation/cation ratios for enhanced performance are identified. LiX adsorbent having a silica to alumina ratio on the order of 2.364 provides enhanced PSA performance.
    Type: Grant
    Filed: December 14, 1993
    Date of Patent: August 15, 1995
    Assignee: Praxair Technology, Inc.
    Inventors: Joseph T. Mullhaupt, Paula C. Stephenson
  • Mixed ion-exchanged zeolites and processes for the use thereof in gas separations
    Patent number: 5413625
    Abstract: Lithium/alkaline earth metal X zeolites in which the lithium:alkaline earth metal equivalent ratio is from about 95:5 to about 50:50 and lithium/alkaline earth metal A zeolites in which the lithium:alkaline earth metal equivalent ratio is from about 10:90 to about 70:30 are useful for separating oxygen and nitrogen from mixtures because they combine high adsorption capacity with high thermal stability.
    Type: Grant
    Filed: December 17, 1992
    Date of Patent: May 9, 1995
    Assignee: Praxair, Inc.
    Inventors: Chien C. Chao, John D. Sherman, Joseph T. Mullhaupt, Cornelius M. Bolinger
  • Method for storing methane using a halogenating agent treated activated carbon
    Patent number: 5372619
    Abstract: A halogenated or sulfonated active carbon which has a high storage capacity for methane is provided from selected halogens in elemental form or solutions of such halogens or from solutions of sulfuric acid, fuming sulfuric acid, sulfur trioxide.
    Type: Grant
    Filed: October 14, 1992
    Date of Patent: December 13, 1994
    Assignee: Ucar Carbon Technology Corporation
    Inventors: Ronald A. Greinke, Richard I. Bretz, Joseph T. Mullhaupt
  • Mixed ion-exchanged zeolites and processes for the use thereof in gas separations
    Patent number: 5174979
    Abstract: Lithium/alkaline earth metal X zeolites in which the lithium:alkaline earth metal equivalent ratio is from about 95:5 to about 50:50 and lithium/alkaline earth metal A zeolites in which the lithium:alkaline earth metal equivalent ratio is from about 10:90 to about 70:30 are useful for separating oxygen and nitrogen from mixtures because they combine high adsorption capacity with high thermal stability.
    Type: Grant
    Filed: October 6, 1989
    Date of Patent: December 29, 1992
    Assignee: UOP
    Inventors: Chien C. Chao, John D. Sherman, Joseph T. Mullhaupt, Cornelius M. Bolinger
  • Process for adsorption
    Patent number: 4477418
    Abstract: In a process for the separation of oxygen from a gas stream by adsorption, the improvement comprising using, as the adsorbent, a compound have the formula M.sub.x [M'(CN).sub.6 ].sub.ywherein M is an element having an atomic number of 21, 25 to 30, 39, 50, or 57 to 59;M' is an element having an atomic number from 24 to 27; andx and y are positive whole numbers such that the sum of the valence of M times x plus the valence of [M'(CN.sub.6)] times y is equal to zero.
    Type: Grant
    Filed: August 23, 1983
    Date of Patent: October 16, 1984
    Assignee: Union Carbide Corporation
    Inventors: Joseph T. Mullhaupt, Oren E. Berwaldt