Patents by Inventor Hiroyuki Mathura

Hiroyuki Mathura 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 treating ammonium nitrate-containing waste water
    Patent number: 4654149
    Abstract: This invention provides a process for treating ammonium nitrate-containing waste water which comprises subjecting the waste water to wet thermal decomposition in the presence of a catalyst supported by a carrier and containing as an active component at least one of precious metals and compounds thereof insoluble or sparingly soluble in water while maintaining the waste water at a pH of about 3 to about 11.5 and a temperature of about 100.degree. to about 370.degree. C.
    Type: Grant
    Filed: March 25, 1986
    Date of Patent: March 31, 1987
    Assignee: Osaka Gas Company Limited
    Inventors: Yoshiaki Harada, Teizou Okino, Hiroyuki Mathura, Yasuhumi Doi, Kenichi Yamasaki