‘Hidden’ USPTO patent assignment data clouds IP business deals
By Nick Robertson ( May 28, 2026, 16:10 GMT | Comment) -- The discovery of over 1.4 million patent assignment records that were previously not published in US Patent and Trademark Office data highlights the importance of data transparency and reliability for businesses involved in IP sales, insurance and strategy.Patent data researchers recently discovered that the US Patent and Trademark Office withheld over 1.4 million patent assignment records from the public for years, raising concerns about the reliability of government records and how incomplete data could impact IP transactions and valuations....
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