Who owns the LIQUITREND trademark?

The LIQUITREND trademark is owned by Endress+Hauser SE+Co. KG.

What is the serial number for LIQUITREND?

The USPTO serial number for LIQUITREND is 79263385.

What is the registration number for LIQUITREND?

LIQUITREND is registered under USPTO registration number 6050274.

LIQUITREND - Owned by Endress+Hauser SE+Co. KG - (Class 009, Class 042)

Q: What class is the LIQUITREND trademark registered in?

The LIQUITREND trademark is registered in Class 009 (Electronics, software & scientific instruments), Class 042 (Scientific, technology & SaaS services).

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.

Full Goods & Services

Class 009Electronics, software & scientific instruments

US codes: 021, 023, 026, 036, 038

Scientific, research, navigation, surveying, photographic, cinematographic, audiovisual, optical, weighing, measuring, signalling, detecting, testing, inspecting, life-saving and teaching apparatus and instruments; apparatus and instruments for conducting, switching, transforming, accumulating, regulating or controlling the distribution or use of electricity; apparatus and instruments for recording, transmitting, reproducing or processing sound, images or data; recorded and downloadable multimedia files, computer software, blank digital or analogue recording and storage media; mechanisms for coin-operated apparatus; cash registers, calculating devices; computers and computer peripheral devices; diving suits, divers' masks, ear plugs for divers, nose clips for divers, gloves for divers, breathing apparatus for underwater swimming; fire-extinguishing apparatus.

Class 042Scientific, technology & SaaS services

US codes: 100, 101

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.

Filing Basis & Declarations

Standard Characters ClaimedSection 15 AcknowledgedTrademark

Status History

36 events

REGISTERED - SEC. 71 ACCEPTED & SEC. 15 ACK.

Sep 11, 2026

Code C75A

NOTICE OF ACCEPTANCE OF SEC. 71 & 15 - E-MAILED

Sep 11, 2026

Code NA75

CASE ASSIGNED TO POST REGISTRATION PARALEGAL

Sep 07, 2026

Code APRE

TEAS SECTION 71 & 15 RECEIVED

Jun 25, 2026

Code ES75

COURTESY REMINDER - SEC. 71 (6-YR) E-MAILED

May 12, 2025

Code REM3

NEW REPRESENTATIVE AT IB RECEIVED

Jan 02, 2021

Code NREP

FINAL DECISION TRANSACTION PROCESSED BY IB

Oct 11, 2020

Code FINO

FINAL DISPOSITION NOTICE SENT TO IB

Sep 17, 2020

Code FICS

FINAL DISPOSITION PROCESSED

Sep 16, 2020

Code FIMP

FINAL DISPOSITION NOTICE CREATED, TO BE SENT TO IB

Aug 12, 2020

Code FICR

REGISTERED-PRINCIPAL REGISTER

May 12, 2020

Code R.PR

PUBLISHED FOR OPPOSITION

Feb 25, 2020

Code PUBO

OFFICIAL GAZETTE PUBLICATION CONFIRMATION E-MAILED

Feb 25, 2020

Code NPUB

NOTIFICATION PROCESSED BY IB

Feb 22, 2020

Code GPNX

NOTIFICATION OF NOTICE OF PUBLICATION E-MAILED

Feb 05, 2020

Code NONP

NOTICE OF START OF OPPOSITION PERIOD CREATED, TO BE SENT TO IB

Feb 05, 2020

Code OP2R

NOTIFICATION OF POSSIBLE OPPOSITION SENT TO IB

Feb 05, 2020

Code OPNS

APPROVED FOR PUB - PRINCIPAL REGISTER

Jan 23, 2020

Code CNSA

TEAS REQUEST FOR RECONSIDERATION RECEIVED

Jan 22, 2020

Code ERFR

CORRESPONDENCE RECEIVED IN LAW OFFICE

Jan 22, 2020

Code CRFA

TEAS/EMAIL CORRESPONDENCE ENTERED

Jan 22, 2020

Code TEME

FINAL REFUSAL WRITTEN

Dec 18, 2019

Code CNFR

FINAL REFUSAL E-MAILED

Dec 18, 2019

Code GNFR

NOTIFICATION OF FINAL REFUSAL EMAILED

Dec 18, 2019

Code GNFN

TEAS RESPONSE TO OFFICE ACTION RECEIVED

Dec 17, 2019

Code TROA

CORRESPONDENCE RECEIVED IN LAW OFFICE

Dec 17, 2019

Code CRFA

TEAS/EMAIL CORRESPONDENCE ENTERED

Dec 17, 2019

Code TEME

REFUSAL PROCESSED BY IB

Sep 06, 2019

Code RFNT

NON-FINAL ACTION MAILED - REFUSAL SENT TO IB

Aug 18, 2019

Code RFCS

REFUSAL PROCESSED BY MPU

Aug 17, 2019

Code RFRR

NON-FINAL ACTION (IB REFUSAL) PREPARED FOR REVIEW

Jul 25, 2019

Code RFCR

APPLICATION FILING RECEIPT MAILED

Jul 24, 2019

Code MAFR

NON-FINAL ACTION WRITTEN

Jul 24, 2019

Code CNRT

NEW APPLICATION OFFICE SUPPLIED DATA ENTERED

Jul 20, 2019

Code NWOS

ASSIGNED TO EXAMINER

Jul 20, 2019

Code DOCK

SN ASSIGNED FOR SECT 66A APPL FROM IB

Jul 18, 2019

Code REPR

Other Marks by Endress+Hauser SE+Co. KG

Additional USPTO filings from the same owner.

SOL

SOLITREND

79267176

Endress+Hauser SE+Co. KG

REGISTERED

DEL

DELTATOP

79422502

Endress+Hauser SE+Co. KG

REGISTERED

LIQ

LIQUICAP

79005963

Endress+Hauser SE+Co. KG

REGISTERED

SOL

SOLIPHANT

79410654

Endress+Hauser SE+Co. KG

REGISTERED

Other Marks by Daniel M. Gurfinkel

Additional USPTO filings handled by the same attorney of record.

MCC

MC-COS

74579446

REGISTERED

LOG

LogoMark

74730143

REGISTERED

BIO

BIOBASE

76064588

REGISTERED

SIX

SIXTER

76596114

REGISTERED

LIQUITREND

What to file next

Full Goods & Services

Filing Basis & Declarations

Other Marks by Endress+Hauser SE+Co. KG

Other Marks by Daniel M. Gurfinkel

Get pre-filing clearance

Search 14M+ trademarks

Run a conflict check

Industries

USPTO Deadlines

Compare

Resources

Company

Exceptions