Patents by Inventor Sirpa Aho

Sirpa Aho 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).

  • Yeast strains producing cellulolytic enzymes and methods and means for constructing them
    Patent number: 5766915
    Abstract: Functional derivatives of endoglucanase I (EGI), and the cloning and recombinant expression thereof, are described.
    Type: Grant
    Filed: January 30, 1995
    Date of Patent: June 16, 1998
    Assignee: Alko-Yhtiot Oy (Alko Group Ltd.)
    Inventors: Jonathan Knowles, Merja Penttila, Tuula Teeri, Helena Nevalainen, Paivi Lehtovaara-Helenius, Sirpa Aho, Sunee Nitisinprasert, Marja Paloheimo, Sirkka Keranen
  • Recombinant production of glucoamylase P in trichoderma
    Patent number: 5665585
    Abstract: The invention is directed to amino acid and DNA sequences of a unique glucoamylase P that has a high debranching activity, a Trichoderma host cell, transformed with such sequences, the expression of such recombinant glucoamylase P, and the industrial uses for the recombinant enzyme and hosts transformed therewith.
    Type: Grant
    Filed: February 7, 1995
    Date of Patent: September 9, 1997
    Assignee: Alko-Yhiot Oy
    Inventors: Tuula Torkkeli, Vesa Joutsjoki, Helena Torkkeli, Arja Vainio, Richard Fagerstrom, Sirpa Aho, Matti Korhola, Helena Nevalainen