Patents by Inventor Panu O. Jikka

Panu O. Jikka 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).

  • Method for controlling sulphite pulping and hydrolytic processes by means of rapid furfural analyzer
    Patent number: 4842689
    Abstract: A method of controlling sulphite pulping or hydrolytic processes by means of a rapid furfural analyzer. Furfural and 5-hydroxymethylfurfural are separated from the other UV-absorbing compounds of a process liquor sample. The concentration measurements are carried out by menas of an UV-method. The obtained measuring results are utilized for on-line controlling of the process in question.
    Type: Grant
    Filed: September 1, 1987
    Date of Patent: June 27, 1989
    Assignee: Oy Advanced Forest Automation Ab
    Inventors: Panu O. Jikka, Nils-Erik Virkola