I would like to do patent search, let's say for patents related to windshield wipers, and have the search results include the number of times a patent has been referenced as prior art in other patent applications. In my mind, many such references indicates a patent is "important". Ideally I could even filter my search to only return frequently-referenced patents.
Can any search tool do this? Especially free ones like Google patents, freepatentsonline, etc.?