Information on changes for patent searching from U.S. Patent Classification to Cooperative Patent Classification (CPC).
Why the switch to CPC:
The EPO and USPTO both had highly developed patent classification systems, the European CLAssification (ECLA) and the United States Patent Classification (USPC) respectively. CPC is the outcome of an ambitious harmonization effort to bring the best practices from each office together. In fact, most U.S. patent documents are already classified in ECLA. The conversion from ECLA to CPC at the EPO will ensure IPC compliance and eliminate the need for the EPO to classify U.S. patent documents. At the USPTO, the conversion will provide an up-to-date classification system that is internationally compatible.
For additional information:
To better understand the new law, click on the following links: