Patents by Inventor John L. Maddocks

John L. Maddocks 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).

  • Immunosuppressive agents
    Patent number: 5635522
    Abstract: A suppression of the human immune system is accomplished by administering to the person an effective amount of a non-toxic thioheterocycle compound having the formula ##STR1## wherein R1 is a heterocycle ring system, R2 is a hydrogen, alkyl or aryl group, and R3 is a hydrogen, alkyl, aryl or nitroaryl group.
    Type: Grant
    Filed: February 23, 1996
    Date of Patent: June 3, 1997
    Assignee: The University of Sheffield
    Inventors: David N. Jones, John L. Maddocks
  • Immunosuppressive agents
    Patent number: 5514697
    Abstract: A compound with immunosuppressive properties having formula (I), in which R.sup.1 represents a heterocyclic ring system, a combined heterocyclic ring system and homocyclic ring system, or an ethoxycarbonylmethyl group. R.sup.2 and R.sup.3 represent hydrogen or lower alkyl groups.
    Type: Grant
    Filed: April 1, 1994
    Date of Patent: May 7, 1996
    Assignee: The University of Sheffield
    Inventors: David N. Jones, John L. Maddocks
  • Immunosuppressive agents
    Patent number: 5300519
    Abstract: A compound with immunosuppressive properties having formula (I), in which R.sup.1 represents a heterocyclic ring system, a combined heterocyclic ring system and homocyclic ring system, or an ethoxycarbonylmethyl group. R.sup.2 and R.sup.3 represent hydrogen or lower alkyl groups.
    Type: Grant
    Filed: February 19, 1993
    Date of Patent: April 5, 1994
    Assignee: The University of Sheffield
    Inventors: David N. Jones, John L. Maddocks