Trademark Screen puts a first-pass check on startup names

Field notes

Users enter a name and what they sell; class selection is optional, but the page says it will ask for input rather than guess if it cannot determine classes. The watch feature screens existing register entries first, then checks for new filings every Tuesday after the USPTO Gazette publishes. Access to saved watches uses an emailed six-digit code. The site says recent filings may take days to appear and that its checks omit state registers, common-law use, and social handles.