Patents by Inventor John O. H. Newman

John O. H. Newman 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).

  • Patent number: 4330394
    Abstract: The tar vapors from carbonizing coal, preferably in a fluidized bed, are treated by quenching with a hydrogen-donor solvent. Tar molecules prone to polymerization upon condensation and upon distillation are partially hydrogenated; the resulting tar solution is of lower viscosity and less likely to coke or form pitch.
    Type: Grant
    Filed: October 7, 1980
    Date of Patent: May 18, 1982
    Assignee: Coal Industry (Patents) Limited
    Inventor: John O. H. Newman
  • Patent number: 4218303
    Abstract: Hydropyrolysis of coal can be done as a two stage process, offering good yields of benzene. The first stage is carbonization of coal in the presence of hydrogen or reactive gas at elevated pressure. The volatile products, without cooling or condensing, are then subjected to cracking at a temperature above the carbonization temperature, in the absence of catalyst, in the presence of hydrogen or reactive gas. The char remaining is reactive and can be gasified. The process is e asier to control and offers many advantages compared to prior proposed single stage hydropyrolysis.
    Type: Grant
    Filed: October 19, 1978
    Date of Patent: August 19, 1980
    Assignee: Coal Industry (Patents) Limited
    Inventors: Michael J. Finn, William R. Ladner, John O. H. Newman