Patents by Inventor Erkki Virtanen

Erkki Virtanen 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).

  • Methods of enhancing reproductive performance of animals
    Patent number: 6183769
    Abstract: Reproductive performance and growth of non-human animals is enhanced by administering betaine to the animals. Betaine is administered to animals living under nutritional or lactational stress. Animal feeds for the enhancing of reproductive performance of animals contain betaine in addition to ingredients conventionally used in animal diets.
    Type: Grant
    Filed: October 21, 1997
    Date of Patent: February 6, 2001
    Assignee: Cultor Ltd.
    Inventors: Roger Campbell, Erkki Virtanen
  • Compositions for treating coccidiosis
    Patent number: 5876780
    Abstract: The invention is directed to compositions useful in methods for the treatment of coccidiosis. The compositions are designed to be administered to animals infected with coccidiosis-inducing organisms and contain an osmoprotectant, e.g. betaine, and an anticoccidial agent or coccidiostat.
    Type: Grant
    Filed: June 11, 1997
    Date of Patent: March 2, 1999
    Assignee: Cultor, Ltd.
    Inventors: Erkki Virtanen, Mika Koivistoinen, James L. McNaughton
  • Use of an organic acids containing fraction for preserving forage
    Patent number: 5858424
    Abstract: The invention relates to the use of an organic acids containing fraction obtained from vinasses and molasses for preserving forage, stimulating microbial growth and activity, and enhancing forage utilization. The fraction may be used as such, or mixed with forage, or used together with a microbe that resists the acidity of the fraction and produces acid.
    Type: Grant
    Filed: February 18, 1997
    Date of Patent: January 12, 1999
    Assignees: Cultor Oy, Sareko Agro Oy
    Inventors: Markku Virkki, Juha Apajalahti, Erkki Virtanen, Hannu Paananen, Kaj-Erik Monten
  • Yield of plants
    Patent number: 5851953
    Abstract: Exogenous use of betaine on tobacco plants improves the yield, especially tobacco plants grown under stress conditions.
    Type: Grant
    Filed: March 5, 1997
    Date of Patent: December 22, 1998
    Assignee: Cultor OY
    Inventors: Eija Pehu, Erkki Virtanen, Kirsti Jutila
  • Method for treating coccidiosis
    Patent number: 5834473
    Abstract: The invention is directed to methods for the treatment of coccidiosis and compositions designed to be administered to animals infected with coccidiosis-inducing organism. The compositions contain an osmoprotectant, and especially, betaine.
    Type: Grant
    Filed: June 5, 1997
    Date of Patent: November 10, 1998
    Assignee: Cultor, Ltd.
    Inventors: Erkki Virtanen, Mika Koivistoinen, James L. McNaughton, Liisa Rosi
  • Betaine as a substitute for supplementary methionine in animal diets
    Patent number: 5773052
    Abstract: This invention is directed to diets for chicks designed to provide their dietary requirements of methionine. Betaine is used in place of methionine to supply a portion of this requirement.
    Type: Grant
    Filed: April 20, 1995
    Date of Patent: June 30, 1998
    Assignee: Cultor-Ltd
    Inventors: Erkki Virtanen, Mika Koivistoinen, David D. Hall, James L. McNaughton