Patents by Inventor Sami Alakurtti

Sami Alakurtti 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).

  • Extraction of valuable components from bark
    Publication number: 20210395466
    Abstract: The present invention relates to a process for the extraction of valuable components from a tannin-rich bark raw-material, by carrying out an alkaline cooking step, followed by acid precipitation to separate the valuable components from the remaining bark pulp. The invention also relates to the use of said process on a bark side stream of a chemical pulping plant, whereby the liquor remaining after the extraction of the present process is returned to a stream of the wood pulping process, typically to a black liquor stream, while the spent pulp can be processed further, e.g. by bleaching to give dissolved pulp.
    Type: Application
    Filed: October 23, 2019
    Publication date: December 23, 2021
    Inventors: Tarja Tamminen, Klaus Niemelä, Stina Grönqvist, Sami Alakurtti, Miikka Ruuskanen, Anna Kalliola
  • Betulin derived compounds as anti-feedants for plant pests
    Publication number: 20120035224
    Abstract: The invention relates to compounds derived from betulin, and to the use thereof in plant pest control, particularly as antifeedants for butterfly larvae, beetles and snails. Further, the invention relates to novel betulin derivatives and methods for the production thereof either directly from betulin, or via intermediates derived therefrom.
    Type: Application
    Filed: June 1, 2007
    Publication date: February 9, 2012
    Applicant: Valtion teknillinen tutkimuskeskus
    Inventors: Sami Alakurtti, Jari Yli-Kauhaluoma, Taru Mäkelä, Salem Koskimies, Pia Bergström, Heikki Hokkanen, Ingeborg Menzler-Hokkanen
  • BETULIN DERIVED COMPOUNDS USEFUL AS ANTIBACTERIAL AGENTS
    Publication number: 20100273801
    Abstract: The invention relates to compouns derived from betulin, and to the use thereof as antibacterial agents in pharmaceutical and cosmetic applications.
    Type: Application
    Filed: June 6, 2007
    Publication date: October 28, 2010
    Applicant: Valition teknillinen tutikimuskeskus
    Inventors: Jari Yli-Kauhaluoma, Salme Koskimies, Sami Alakurtti, Taru Mäkelä, Päivi Tammela
  • COMPOSITIONS COMPRISING BETULONIC ACID
    Publication number: 20100196290
    Abstract: The invention relates to compositions of cosmetic and pharmaceutical industries comprising betulonic acid for humans and animals, and further, to the use of betulonic acid in compositions of cosmetic and pharmaceutical industries. The invention is also directed to compositions containing, besides betulonic acid, optionally other compounds derived from betulin.
    Type: Application
    Filed: June 6, 2007
    Publication date: August 5, 2010
    Applicant: Valtion teknillinen tutkimuskeskus
    Inventors: Jari Yli-Kauhaluoma, Salme Koskimies, Sami Alakurtti, Pia Bergström, Thomas Ahlnäs, Kristian Meinander, Päivi Tammela
  • BETULIN DERIVED COMPOUNDS USEFUL AS ANTIPROTOZOAL AGENTS
    Publication number: 20100190795
    Abstract: The invention relates to betulin derivatives, and to the use thereof as agents against protozoa of the genus Leishmania and against leishmaniasis in applications of pharmaceutical industry.
    Type: Application
    Filed: June 6, 2007
    Publication date: July 29, 2010
    Applicant: Valtion Teknillinen tutkimuskeskus
    Inventors: Jari Yli-Kauhaluoma, Sami Alakurtti, Jaana Minkkinen, Nina Sarcerdoti-Sierra, Charles L. Jaffe, Tuomo Heiska