Erkki Virtanen

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Helsinki, FI

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Patents Grantslast 30 patents

Information Patent Grant
Methods of enhancing reproductive performance of animals
- Patent number 6,183,769
- Issue date Feb 6, 2001
- Cultor Ltd.
- Roger Campbell
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information Patent Grant
Compositions for treating coccidiosis
- Patent number 5,876,780
- Issue date Mar 2, 1999
- Cultor, Ltd.
- Erkki Virtanen
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information Patent Grant
Use of an organic acids containing fraction for preserving forage
- Patent number 5,858,424
- Issue date Jan 12, 1999
- Cultor Oy
- Markku Virkki
- A23 - FOODS OR FOODSTUFFS THEIR TREATMENT, NOT COVERED BY OTHER CLASSES
Information Patent Grant
Yield of plants
- Patent number 5,851,953
- Issue date Dec 22, 1998
- Cultor OY
- Eija Pehu
- C05 - FERTILISERS MANUFACTURE THEREOF
Information Patent Grant
Method for treating coccidiosis
- Patent number 5,834,473
- Issue date Nov 10, 1998
- Cultor, Ltd.
- Erkki Virtanen
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information Patent Grant
Betaine as a substitute for supplementary methionine in animal diets
- Patent number 5,773,052
- Issue date Jun 30, 1998
- Cultor Ltd.
- Erkki Virtanen
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE