Who owns the SIUFOU trademark?

The SIUFOU trademark is owned by Liu Haoxuan.

What class is the SIUFOU trademark registered in?

The SIUFOU trademark is registered in Class 010 (Surgical, medical, dental & veterinary apparatus).

What is the serial number for SIUFOU?

The USPTO serial number for SIUFOU is 99619451.

What is the registration number for SIUFOU?

SIUFOU is registered under USPTO registration number 8391309.

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Updated Oct 17, 2026·26 searches this week

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USPTO Trademark Record

REGISTERED

SIUFOU

SN 99619451·Reg 8391309·Filed Jan 28, 2026

Owner Liu Haoxuan

Surgical, medical, dental and veterinary apparatus and instruments; artificial limbs, eyes and teeth; spectacles, contact lenses and sunglasses; orthopaedic articles; suture materials; therapeutic and assistive devices adapted for persons with disabilities; massage apparatus; apparatus, devices and articles for nursing infants; sexual activity apparatus, devices and articles.

SIUFOU (Serial No. 99619451), Registration No. 8391309, is a registered US trademark filed on Jan 28, 2026 by Liu Haoxuan. This trademark covers Class 010 (Surgical, medical, dental & veterinary apparatus).

early section 8: August 11, 2032

Mark Intelligence

SIUFOU (Reg. #8391309) is a registered US trademark that has been protecting its owner, Liu Haoxuan, since 2026. The mark covers Class 010 (Surgical, medical, dental & veterinary apparatus). Goods and services include Surgical, medical, dental and veterinary apparatus and instruments; artificial limbs, eyes and teeth; spectacles, contac.... The mark faced 1 opposition proceeding during prosecution.

FILED

Jan 28, 2026

SERIAL

99619451

REG#

8391309

REGISTERED

Aug 11, 2026

Filing Information

StatusREGISTERED

Filing DateJan 28, 2026

Serial Number99619451