USPTO trademark record

NO BLOK

Live registered mark · Owner Dresser Industries, Inc. · Classes 1

Mark details

Owner: Dresser Industries, Inc.
Serial number: 75560258
Registration number: 2292677
Status: REGISTERED AND RENEWED
Classes: 1 (Chemicals)
Filed: 1998-09-28
Registered: 1999-11-16
Goods / services: drilling fluid additive, namely, a blend of chemical agents designed for prevention of brine-oil emulsions during well completion operations in the drilling of oil and gas wells

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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