null/null Locations

There are locations where the city and state have no value yet patents are associated with these locations as shown below. The api does not allow searches for null values (unset values) but when sorted they float to the top. Currently there is only one row where the city and state are both null. When I originally wrote this there were more.

CityStateCountry latitudelongitudeLocation_id
Requesting data from Patentsview. Results will appear here in a few seconds!
¹Number of patents associated with this location
Rows returned: ?