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903.06 Harmonized Subclasses [R-5] - 900 Prior Art, Classification, and Search
903.06 Harmonized Subclasses [R-5]
The U.S. Patent Classification System (USPC) includes subclasses that have been harmonized with subclasses from the European Patent Office (EPO) and the Japan Patent Office (JPO). These subclasses are regularly populated with documents from the EPO and JPO databases. Subclasses that have been harmonized have a designation of "EPO," "JPO," or "EPO/JPO" in parentheses following the subclass title to indicate if the subclass has been harmonized with the EPO or JPO or with both systems.<
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