Searching Company portfolios in PatSeer – Best Practices for using USPTO Reassignments data and Corporate Tree

When building a set of all records held by a company, a searcher is faced with multiple challenges such as non-standardized Assignee names, Missing data on current ownership of records, Patents held by subsidiary companies or holding entities whose names are entirely different form the operating name and finally Blank Assignees (Unassigned applications). Simply searching [...]