PatSeer Search Recall™ – Don’t review the same record twice!
When searching for patents, there are always noise patents that show up in your search query. Even after multiple iterations of your keyword search, there will be a few records that are found to be irrelevant after reading through their text. The usual next step for you is to figure out a way to exclude such records by adding a “NOT” segment to your query. And when you run out of safe “text patterns” to NOT out from your search query, the only remaining option is to create a long list of such numbers that are NOT’ed from the original query. Even then there may be family equivalents that still show up!