Patents by Inventor William Lechter

William Lechter 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).

  • HIP method of making high temperature mercury-containing superconductors
    Patent number: 5952272
    Abstract: Hg,Tl-based superconductors are produced by HIPping. A new superconducting phase, having a double (Hg,Tl)-layer and the nominal composition:(Hg.sub.1-x Tl.sub.x).sub.2 (Ba.sub.1-a Sr.sub.a).sub.2 (Ca.sub.1-b Y.sub.b).sub.2 Cu.sub.3 O.sub.zwhere 0.ltoreq.x.ltoreq.0.95, 0.ltoreq.a.ltoreq.1, 0.ltoreq.b.ltoreq.1, and z is sufficient to provide said phase with a resistive and magnetic superconducting transition of 100 K or above, can be produced. Either precursor oxides, or partially or fully reacted mixed oxides, can be used in the HIPping mixture.
    Type: Grant
    Filed: April 16, 1998
    Date of Patent: September 14, 1999
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventors: Louis E. Toth, William Lechter, Earl F. Skelton, Michael Osofsky
  • High temperature mercury-containing superconductors and method of making the same
    Patent number: 5776861
    Abstract: Hg,Tl-based superconductors are produced by HIPping. A new superconducting phase, having a double (Hg,Tl)-layer and the nominal composition:(Hg.sub.1-x Tl.sub.x).sub.2 (Ba.sub.1-a Sr.sub.a).sub.2 (Ca.sub.1-b Y.sub.b).sub.2 Cu.sub.3 O.sub.zwhere 0.ltoreq.x.ltoreq.0.95, 0.ltoreq.a.ltoreq.1, 0.ltoreq.b.ltoreq.1, and z is sufficient to provide said phase with a resistive and magnetic superconducting transition of 100K or above, can be produced. Either precursor oxides, or partially or fully reacted mixed oxides, can be used in the HIPping mixture.
    Type: Grant
    Filed: April 28, 1995
    Date of Patent: July 7, 1998
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventors: Louis E. Toth, William Lechter, Earl F. Skelton, Michael Osofsky