USPTO trademark record

DIFFDX

Live registered mark · Owner Castle Biosciences Incorporated · Classes 44

Mark details

Owner: Castle Biosciences Incorporated
Serial number: 90309436
Registration number: 6604224
Status: REGISTERED
Classes: 44 (Medical / veterinary / agriculture services)
Filed: 2020-11-10
Registered: 2021-12-28
Goods / services: Providing medical diagnostic testing services to dermatologists, surgeons, and oncologists for diagnostic and prognostic purposes for dermatologic melanoma, namely genetic expression profiling and ge…

Register data as of 2026-11-08. Records can trail live filings — check the official USPTO search for the latest status before filing.

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