![]() /low selects the classification AND the classifications under it in the hierarchy - sometimes there are no classification under the one selected.Notice that clicking in the box fills in a a search form to the right. Select the classification of interest with a click in its box (this selected classification is for example only):Ĥ.To see the patents assigned to the classification we: ) structure showing a hierarchical arrangement of the headings.ģ.Notice notes pointing to other classes or places and giving clarification.Ask yourself if this seems like the correct area for computer mice.Click on the classification to expand the CPC scheme for that section. ![]() Looks as though we will want to consider the broad category of G06F3/00: The language of patents is not always obvious."Computer mouse" finds a quick match but the usual advice is to try various term related to your interest. ![]() For example, we can search "computer mouse" to find where that fits in the CPC: Search by keyword or, if you have it, by classification to find a location within the classification scheme.ġ.Browse the tables (this is a challenging task for most of us).Go directly to the classification tables to figure out the best codes.Use subject classifications on known patents found from other work for example, finding patents from company or keyword searches.In classification searching, it is your job to match your area of interest to the right subject classification(s). The Cooperative Patent Classification (CPC) System is the patent classification system used in Europe, the U.S., and in various other parts of the world. Here is a video on classification searching in Espacenet from the Open Source Patent Analytics Project. Examine the patents in the list the examination will be both for information about that patent and for cited literature.Get the list of patents assigned (by various patent offices) to that subject classification.Figure out the matching subject classification(s) for your area of interest.Search by keyword, classification, title, author, or use advanced search to limit to country of origin and patent type.For careful, comprehensive subject searching, patent examiners emphasize searching by patent classification. ![]()
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