Who owns the LET trademark?

The LET trademark is owned by Lemna Environmental Technologies, Inc..

What is the serial number for LET?

The USPTO serial number for LET is 99552377.

What is the registration number for LET?

LET is registered under USPTO registration number 8334161.

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Updated Sep 18, 2026·33 searches this week

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LET

USPTO Trademark Record

REGISTERED

LET

Q: What class is the LET trademark registered in?

The LET trademark is registered in Class 040 (Treatment & processing of materials), Class 042 (Scientific, technology & SaaS services).

SN 99552377·Reg 8334161·Filed Dec 17, 2025

Owner Lemna Environmental Technologies, Inc.

Treatment of materials; recycling of waste and trash; air purification and treatment of water; printing services; food and drink preservation.; 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.

LET (Serial No. 99552377), Registration No. 8334161, is a registered US trademark filed on Dec 17, 2025 by Lemna Environmental Technologies, Inc.. This trademark covers Class 040 (Treatment & processing of materials), Class 042 (Scientific, technology & SaaS services).

early section 8: July 07, 2032

Conflict Analysis

Full conflict analysis for LET (SN 99552377) against the USPTO database with detailed risk factor explanations. AI-powered — takes ~1-2 min.

Mark Intelligence

LET (Reg. #8334161) is a registered US trademark that has been protecting its owner, Lemna Environmental Technologies, Inc., since 2025. The mark covers Class 040 (Treatment & processing of materials) and Class 042 (Scientific, technology & SaaS services) respectively. Goods and services include Treatment of materials; recycling of waste and trash; air purification and treatment of water; printing services; food a.... The mark faced 1 opposition proceeding during prosecution.

FILED

Dec 17, 2025

SERIAL

99552377

REG#

8334161

REGISTERED

Jul 07, 2026

Filing Information

StatusREGISTERED

Filing DateDec 17, 2025

Serial Number99552377

Registration No.8334161

Registration DateJul 07, 2026

Status DateJul 07, 2026

Published for OppositionMay 19, 2026

Filing Basis & Declarations

Standard Characters ClaimedFiled as Use ApplicationUse Application Currently

Full Goods & Services

CLASSES

OFFICE

USPTO

COUNTRY

Class 040Treatment & processing of materials

US codes: 100, 103, 106

First use anywhere: Jan 01, 1983

First use in commerce: Jan 01, 1983

Treatment of materials; recycling of waste and trash; air purification and treatment of water; printing services; food and drink preservation.

Class 042Scientific, technology & SaaS services

US codes: 100, 101

First use anywhere: Jan 01, 1983

First use in commerce: Jan 01, 1983

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.

This description is as filed with the USPTO and defines the scope of trademark protection.