How often is the Patent Classification Retrieval System (PCRS) updated?

The Patent Classification Retrieval System (PCRS) is regularly updated to ensure the most current classification information is available. According to MPEP 902.03(b): “This data is updated bimonthly with new issues, withdrawn patents and reclassifications.“ This bimonthly update schedule ensures that users have access to the latest classification information, including newly issued patents, patents that have…

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What is the Patent Classification Retrieval System (PCRS)?

The Patent Classification Retrieval System (PCRS) is a valuable tool for accessing patent classification information. As described in MPEP 902.03(b): “The Patent Classification Retrieval System (PCRS) provides Original (OR) and Cross-Reference (XR) classification information for individual patents and listings of patents contained in subclasses. This data is updated bimonthly with new issues, withdrawn patents and…

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