Patents by Inventor Ulla Happonen

Ulla Happonen 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).

  • Feed section of a separation column
    Patent number: 8974640
    Abstract: The present invention relates to a feed distribution device in separation columns and a method of operation. In particular it relates to distillation columns in which the feed stream is substantially liquid phase, or a mixture of gas and liquid upstream of the column, but where the feed vaporizes or vaporizes more when it enters the column. More specifically, the feed distribution device contains a plurality of opening which allow the feed to vaporize inside the column and where the openings are maintained in critical condition during operation. Significant advantage is achieved through the implementation and use of the present feed distribution device.
    Type: Grant
    Filed: June 17, 2011
    Date of Patent: March 10, 2015
    Assignee: Neste Oil Oyj
    Inventors: Esa Tamminen, Simo Jortikka, Martti Ruskoaho, Ulla Happonen
  • Feed section of a separation column
    Publication number: 20110308932
    Abstract: The present invention relates to a feed distribution device in separation columns and a method of operation. In particular it relates to distillation columns in which the feed stream is substantially liquid phase, or a mixture of gas and liquid upstream of the column, but where the feed vaporizes or vaporizes more when it enters the column. More specifically, the feed distribution device contains a plurality of opening which allow the feed to vaporize inside the column and where the openings are maintained in critical condition during operation. Significant advantage is achieved through the implementation and use of the present feed distribution device.
    Type: Application
    Filed: June 17, 2011
    Publication date: December 22, 2011
    Applicant: Neste Oil Oyj
    Inventors: Esa Tamminen, Matti Happonen, Ulla Happonen, Simo Jortikka, Martti Ruskoaho