1. An assignee to identify patents with specific legal status; example, all patents of an assignee that have lapsed in last one year
2. One or more patents for repeated updation of current legal status; example, a patent which was relevant to freedom-to-operate study but had lapsed during the freedom-to-operate search and hence was not considered relevant for the freedom-to-operate study; however, on later updation the patent was restored thereby becoming relevant to the freedom-to-operate study conducted earlier, after the legal status searches were done for such updation.

Typically, this is done with the same intention as that for checking freedom-to-operate with respect to a product or a process claimed in a patent/ patent application. Based on the outcome of this search, strategic approach similar to a freedom-to-operate can be taken.

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