USPTO trademark record

ECOBIO-BLOCK

Live registered mark · Owner Koyoh Co., Ltd. · Classes 19

Mark details

Owner: Koyoh Co., Ltd.
Serial number: 77351837
Registration number: 3507631
Status: REGISTERED AND RENEWED
Classes: 19 (Building materials)
Filed: 2007-12-13
Registered: 2008-09-30
Goods / services: Concrete block containing beneficial bacteria used for water treatment and purification

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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