Who owns the HT trademark?

The HT trademark is owned by HALDOR TOPSOE, INC..

What class is the HT trademark registered in?

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

What is the serial number for HT?

The USPTO serial number for HT is 73523490.

What is the registration number for HT?

HT is registered under USPTO registration number 0.

Sealvo

Home Search: HTHT #73523490

Back

Updated Oct 3, 2026·21 searches this week

View on USPTO TSDR Find similar marks

USPTO Trademark Record

ABANDONED

HT

SN 73523490·Reg 0·Filed Feb 22, 1985

Owner HALDOR TOPSOE, 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.

HT (Serial No. 73523490), Registration No. 0, is a abandoned US trademark filed on Feb 22, 1985 by HALDOR TOPSOE, INC.. This trademark covers Class 042 (Scientific, technology & SaaS services).

Conflict Analysis

Full conflict analysis for HT (SN 73523490) against the USPTO database with detailed risk factor explanations. AI-powered — takes ~1-2 min.

Mark Intelligence

HT (Reg. #0) is an abandoned US trademark that was filed in 1985 but has since been abandoned. The mark covers Class 042 (Scientific, technology & SaaS services). Goods and services include Scientific and technological services and research and design relating thereto; industrial analysis, industrial research....

FILED

Feb 22, 1985

SERIAL

73523490

REG#

REGISTERED

Dec 31, 1969

Filing Information

StatusABANDONED

Filing DateFeb 22, 1985

Serial Number73523490

Registration No.0