This international patent application
is the basis of many existing national or regional patents under the title:
"Method for fast K- filtering in large dynamic systems"
Canada: pat. pending,
Europe: European patent No. 0639261 for:
Finland: pat. No. 101502 of 30.06.98,
Japan: pat. granted,
United States: Patent 5,654,907 of Aug. 5, 1997.
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