Who owns the K-FLEX trademark?

The K-FLEX trademark is owned by LANXESS CORPORATION.

What class is the K-FLEX trademark registered in?

The K-FLEX trademark is registered in Class 001 (Chemicals for industrial, scientific & agricultural use).

What is the serial number for K-FLEX?

The USPTO serial number for K-FLEX is 74540133.

What is the registration number for K-FLEX?

K-FLEX is registered under USPTO registration number 1909629.

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USPTO Trademark Record

REGISTERED

K-FLEX

SN 74540133·Reg 1909629·Filed Jun 20, 1994

Owner LANXESS CORPORATION

Chemicals for use in industry, science and photography, as well as in agriculture, horticulture and forestry; unprocessed artificial resins, unprocessed plastics; fire extinguishing and fire prevention compositions; tempering and soldering preparations; substances for tanning animal skins and hides; adhesives for use in industry; compost, manures, fertilizers; biological preparations for use in industry and science.

K-FLEX (Serial No. 74540133), Registration No. 1909629, is a registered US trademark filed on Jun 20, 1994 by LANXESS CORPORATION. This trademark covers Class 001 (Chemicals for industrial, scientific & agricultural use).

Section 8/9 declaration window: August 08, 2035

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Mark Intelligence

K-FLEX (Reg. #1909629) is a registered US trademark that has been protecting its owner, LANXESS CORPORATION, since 1994. The mark covers Class 001 (Chemicals for industrial, scientific & agricultural use). Goods and services include Chemicals for use in industry, science and photography, as well as in agriculture, horticulture and forestry; unprocesse.... The mark faced 1 opposition proceeding during prosecution.

FILED

Jun 20, 1994

SERIAL

74540133

REG#

1909629

REGISTERED

Aug 08, 1995

Filing Information

StatusREGISTERED

Filing DateJun 20, 1994

Serial Number74540133

Registration No.1909629

Registration DateAug 08, 1995

Status DateSep 19, 2025

Published for OppositionMay 16, 1995

Filing Basis & Declarations

Standard Characters ClaimedFiled as Use ApplicationUse Application CurrentlySection 8 AcceptedSection 15 AcknowledgedTrademark

Full Goods & Services

CLASSES

OFFICE

USPTO

COUNTRY

Class 001Chemicals for industrial, scientific & agricultural use

US codes: 006

First use anywhere: Apr 20, 1981

First use in commerce: Apr 20, 1981

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

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Status History

39 events

CASE ASSIGNED TO POST REGISTRATION PARALEGAL

Sep 19, 2025

CASE ASSIGNED TO POST REGISTRATION PARALEGAL

REGISTERED - SEC. 8 (10-YR) ACCEPTED/SEC. 9 GRANTED

Sep 19, 2025

REGISTERED - SEC. 8 (10-YR) ACCEPTED/SEC. 9 GRANTED

REGISTERED AND RENEWED (THIRD RENEWAL - 10 YRS)

Sep 19, 2025

REGISTERED AND RENEWED (THIRD RENEWAL - 10 YRS)

NOTICE OF ACCEPTANCE OF SEC. 8 & 9 - E-MAILED

Sep 19, 2025

NOTICE OF ACCEPTANCE OF SEC. 8 & 9 - E-MAILED

TEAS SECTION 8 & 9 RECEIVED

May 27, 2025

TEAS SECTION 8 & 9 RECEIVED

AUTOMATIC UPDATE OF ASSIGNMENT OF OWNERSHIP

Sep 11, 2024

AUTOMATIC UPDATE OF ASSIGNMENT OF OWNERSHIP

COURTESY REMINDER - SEC. 8 (10-YR)/SEC. 9 E-MAILED

Aug 08, 2024

COURTESY REMINDER - SEC. 8 (10-YR)/SEC. 9 E-MAILED

ASSIGNMENT OF OWNERSHIP NOT UPDATED AUTOMATICALLY

Aug 11, 2021

ASSIGNMENT OF OWNERSHIP NOT UPDATED AUTOMATICALLY

Sep 02, 2020

ASSIGNMENT OF OWNERSHIP NOT UPDATED AUTOMATICALLY

NOTICE OF ACCEPTANCE OF SEC. 8 & 9 - MAILED

Sep 17, 2014

NOTICE OF ACCEPTANCE OF SEC. 8 & 9 - MAILED

REGISTERED - SEC. 8 (10-YR) ACCEPTED/SEC. 9 GRANTED

Sep 12, 2014

REGISTERED - SEC. 8 (10-YR) ACCEPTED/SEC. 9 GRANTED

REGISTERED AND RENEWED (SECOND RENEWAL - 10 YRS)

Sep 12, 2014

REGISTERED AND RENEWED (SECOND RENEWAL - 10 YRS)

NOTICE OF ACCEPTANCE OF SEC. 8 & 9 - E-MAILED

Sep 12, 2014

NOTICE OF ACCEPTANCE OF SEC. 8 & 9 - E-MAILED

TEAS SECTION 8 & 9 RECEIVED

Sep 11, 2014

TEAS SECTION 8 & 9 RECEIVED

ASSIGNMENT OF OWNERSHIP NOT UPDATED AUTOMATICALLY

Aug 13, 2014

ASSIGNMENT OF OWNERSHIP NOT UPDATED AUTOMATICALLY

Aug 06, 2014

ASSIGNMENT OF OWNERSHIP NOT UPDATED AUTOMATICALLY

Jul 13, 2011

ASSIGNMENT OF OWNERSHIP NOT UPDATED AUTOMATICALLY

CASE FILE IN TICRS

Apr 08, 2011

CASE FILE IN TICRS

Apr 04, 2011

CASE FILE IN TICRS

TEAS REVOKE/APP/CHANGE ADDR OF ATTY/DOM REP RECEIVED

Oct 24, 2006

TEAS REVOKE/APP/CHANGE ADDR OF ATTY/DOM REP RECEIVED

ATTORNEY/DOM.REP.REVOKED AND/OR APPOINTED

Oct 24, 2006

ATTORNEY/DOM.REP.REVOKED AND/OR APPOINTED

ASSIGNMENT OF OWNERSHIP NOT UPDATED AUTOMATICALLY

Aug 23, 2006

ASSIGNMENT OF OWNERSHIP NOT UPDATED AUTOMATICALLY

Jun 07, 2006

ASSIGNMENT OF OWNERSHIP NOT UPDATED AUTOMATICALLY

TEAS REVOKE/APP/CHANGE ADDR OF ATTY/DOM REP RECEIVED

Aug 19, 2005

TEAS REVOKE/APP/CHANGE ADDR OF ATTY/DOM REP RECEIVED

ATTORNEY/DOM.REP.REVOKED AND/OR APPOINTED

Aug 19, 2005

ATTORNEY/DOM.REP.REVOKED AND/OR APPOINTED

REGISTERED - SEC. 8 (10-YR) ACCEPTED/SEC. 9 GRANTED

Oct 21, 2004

REGISTERED - SEC. 8 (10-YR) ACCEPTED/SEC. 9 GRANTED

REGISTERED AND RENEWED (FIRST RENEWAL - 10 YRS)

Oct 21, 2004

REGISTERED AND RENEWED (FIRST RENEWAL - 10 YRS)

TEAS SECTION 8 & 9 RECEIVED

Sep 15, 2004

TEAS SECTION 8 & 9 RECEIVED

REGISTERED - COMBINED SECTION 8 (10-YR) & SEC. 9 FILED

Sep 15, 2004

REGISTERED - COMBINED SECTION 8 (10-YR) & SEC. 9 FILED

TEAS CHANGE OF CORRESPONDENCE RECEIVED

Jan 23, 2003

TEAS CHANGE OF CORRESPONDENCE RECEIVED

REGISTERED - SEC. 8 (6-YR) ACCEPTED & SEC. 15 ACK.

Oct 19, 2001

REGISTERED - SEC. 8 (6-YR) ACCEPTED & SEC. 15 ACK.

RESPONSE RECEIVED TO POST REG. ACTION - SEC. 8 & 15

Oct 05, 2001

RESPONSE RECEIVED TO POST REG. ACTION - SEC. 8 & 15

POST REGISTRATION ACTION MAILED - SEC. 8 & 15

Sep 19, 2001

POST REGISTRATION ACTION MAILED - SEC. 8 & 15

REGISTERED - SEC. 8 (6-YR) & SEC. 15 FILED

Aug 03, 2001

REGISTERED - SEC. 8 (6-YR) & SEC. 15 FILED

REGISTERED-PRINCIPAL REGISTER

Aug 08, 1995

REGISTERED-PRINCIPAL REGISTER

PUBLISHED FOR OPPOSITION

May 16, 1995

PUBLISHED FOR OPPOSITION

NOTICE OF PUBLICATION

Apr 14, 1995

NOTICE OF PUBLICATION

APPROVED FOR PUB - PRINCIPAL REGISTER

Dec 21, 1994

APPROVED FOR PUB - PRINCIPAL REGISTER

ASSIGNED TO EXAMINER

Dec 12, 1994

ASSIGNED TO EXAMINER

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