Who owns the REEF trademark?

The REEF trademark is owned by Reef.AI, Inc..

What class is the REEF trademark registered in?

The REEF trademark is registered in Class 042 (Scientific, technology & SaaS services).

What is the serial number for REEF?

The USPTO serial number for REEF is 90876828.

What is the registration number for REEF?

REEF is registered under USPTO registration number 6833452.

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Updated Nov 1, 2026·27 searches this week

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Section 8 declaration window

August 30, 2028

668 days remaining

REE

REEF

REGISTERED

Serial: 90876828
Reg: 6833452
Filed: Aug 11, 2021
Owner: Reef.AI, Inc.

Scientific and technological services and research and design relating thereto; industrial analysis, industrial research and industrial design services; quality control and authentication services; design and development of computer hardware and software.

What to file next

Section 8 declaration of continued use

When: Due between the fifth and sixth anniversary of registration.
Extensions and grace: A six-month grace period follows, with an added per-class fee.
If it is missed: A missed Section 8 cancels the registration, and there is no revival route for it.

How the Section 8 deadline works

General information about USPTO practice, not legal advice. The register is the authority, and a filing that has not yet posted can change what is owed.