Who owns the ERN trademark?

The ERN trademark is owned by Dr. Johannes Heidenhain GmbH.

What class is the ERN trademark registered in?

The ERN trademark is registered in Class 009 (Electronics, software & scientific instruments).

What is the serial number for ERN?

The USPTO serial number for ERN is 74462387.

What is the registration number for ERN?

ERN is registered under USPTO registration number 1904172.

ERN

USPTO Trademark Record

REGISTERED

ERN

SN 74462387·Reg 1904172·Filed Nov 23, 1993

Owner Dr. Johannes Heidenhain GmbH

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.

ERN (Serial No. 74462387), Registration No. 1904172, is a registered US trademark filed on Nov 23, 1993 by Dr. Johannes Heidenhain GmbH. This trademark covers Class 009 (Electronics, software & scientific instruments).

Section 8/9 declaration window: July 11, 2035

Mark Intelligence

ERN (Reg. #1904172) is a registered US trademark that has been protecting its owner, Dr. Johannes Heidenhain GmbH, since 1993. The mark covers Class 009 (Electronics, software & scientific instruments). Goods and services include Scientific, research, navigation, surveying, photographic, cinematographic, audiovisual, optical, weighing, measuring, s.... The mark faced 1 opposition proceeding during prosecution.

FILED

Nov 23, 1993

SERIAL

74462387

REG#

1904172

REGISTERED

Jul 11, 1995

Owner

Applicant

Dr. Johannes Heidenhain GmbH

Entity

Not Provided

Address

Dr.-Johannes-Heidenhain-Strasse 5, Traunreut, D-83301

Country

Attorney

NameDaniel M. Gurfinkel

Law firm

Daniel M. Gurfinkel Dennemeyer & Associates, LLC

Docket

10171565TR

Address

230 W. Monroe St., Suite 2100, Chicago, IL 60606, United States

Get pre-filing clearance

AI attorney analyzes your proposed mark against USPTO — Go/No-Go verdict, class-by-class risks, and strategy recommendations.

Run clearance

Filing Information

StatusREGISTERED

Filing DateNov 23, 1993

Serial Number74462387

Registration No.1904172

Registration DateJul 11, 1995

Status DateOct 22, 2025

Published for OppositionApr 18, 1995

Next RenewalJuly 11, 2035

Mark TypeTypeset (words/letters/numbers)

Attorney Docket10171565TR

Status DescriptionLive and registered, renewed

Filing Signals

FILED

1993

YEARS AGO

33y

CLASSES

MADRID FILINGS

—

Opposed 1× during prosecution

Search 15M+ trademarks

Free USPTO lookups by name, owner, or serial number. No account needed.

Search now

Full Goods & Services

CLASSES

OFFICE

USPTO

COUNTRY

Class 009Electronics, software & scientific instruments

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

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

Status History

41 events

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

Oct 22, 2025

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

REGISTERED AND RENEWED (THIRD RENEWAL - 10 YRS)

Oct 22, 2025

REGISTERED AND RENEWED (THIRD RENEWAL - 10 YRS)

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

Oct 22, 2025

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

CASE ASSIGNED TO POST REGISTRATION PARALEGAL

Oct 20, 2025

CASE ASSIGNED TO POST REGISTRATION PARALEGAL

TEAS SECTION 8 & 9 RECEIVED

Jun 30, 2025

TEAS SECTION 8 & 9 RECEIVED

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

Jul 11, 2024

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

TEAS CHANGE OF OWNER ADDRESS RECEIVED

May 24, 2022

TEAS CHANGE OF OWNER ADDRESS RECEIVED

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

May 24, 2022

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

ATTORNEY/DOM.REP.REVOKED AND/OR APPOINTED

May 24, 2022

ATTORNEY/DOM.REP.REVOKED AND/OR APPOINTED

TEAS CHANGE OF CORRESPONDENCE RECEIVED

May 24, 2022

TEAS CHANGE OF CORRESPONDENCE RECEIVED

APPLICANT/CORRESPONDENCE CHANGES (NON-RESPONSIVE) ENTERED

May 24, 2022

APPLICANT/CORRESPONDENCE CHANGES (NON-RESPONSIVE) ENTERED

TEAS CHANGE OF OWNER ADDRESS RECEIVED

Jul 22, 2021

TEAS CHANGE OF OWNER ADDRESS RECEIVED

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

Jul 22, 2021

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

ATTORNEY/DOM.REP.REVOKED AND/OR APPOINTED

Jul 22, 2021

ATTORNEY/DOM.REP.REVOKED AND/OR APPOINTED

TEAS WITHDRAWAL OF ATTORNEY RECEIVED-FIRM RETAINS

Jul 22, 2021

TEAS WITHDRAWAL OF ATTORNEY RECEIVED-FIRM RETAINS

TEAS CHANGE OF DOMESTIC REPRESENTATIVES ADDRESS

Jul 22, 2021

TEAS CHANGE OF DOMESTIC REPRESENTATIVES ADDRESS

TEAS CHANGE OF CORRESPONDENCE RECEIVED

Jul 22, 2021

TEAS CHANGE OF CORRESPONDENCE RECEIVED

APPLICANT/CORRESPONDENCE CHANGES (NON-RESPONSIVE) ENTERED

Jul 22, 2021

APPLICANT/CORRESPONDENCE CHANGES (NON-RESPONSIVE) ENTERED

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

Jul 16, 2015

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

REGISTERED AND RENEWED (SECOND RENEWAL - 10 YRS)

Jul 16, 2015

REGISTERED AND RENEWED (SECOND RENEWAL - 10 YRS)

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

Jul 16, 2015

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

CASE ASSIGNED TO POST REGISTRATION PARALEGAL

Jul 15, 2015

CASE ASSIGNED TO POST REGISTRATION PARALEGAL

TEAS SECTION 8 & 9 RECEIVED

Jun 23, 2015

TEAS SECTION 8 & 9 RECEIVED

CASE FILE IN TICRS

Jun 22, 2007

CASE FILE IN TICRS

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

Aug 26, 2005

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

REGISTERED AND RENEWED (FIRST RENEWAL - 10 YRS)

Aug 26, 2005

REGISTERED AND RENEWED (FIRST RENEWAL - 10 YRS)

ASSIGNED TO PARALEGAL

Aug 17, 2005

ASSIGNED TO PARALEGAL

TEAS SECTION 8 & 9 RECEIVED

May 11, 2005

TEAS SECTION 8 & 9 RECEIVED

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

May 11, 2005

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

TEAS CHANGE OF CORRESPONDENCE RECEIVED

Feb 25, 2003

TEAS CHANGE OF CORRESPONDENCE RECEIVED

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

Aug 14, 2001

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

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

Jul 09, 2001

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

REGISTERED-PRINCIPAL REGISTER

Jul 11, 1995

REGISTERED-PRINCIPAL REGISTER

PUBLISHED FOR OPPOSITION

Apr 18, 1995

PUBLISHED FOR OPPOSITION

NOTICE OF PUBLICATION

Mar 17, 1995

NOTICE OF PUBLICATION

APPROVED FOR PUB - PRINCIPAL REGISTER

Dec 08, 1994

APPROVED FOR PUB - PRINCIPAL REGISTER

CORRESPONDENCE RECEIVED IN LAW OFFICE

Nov 14, 1994

CORRESPONDENCE RECEIVED IN LAW OFFICE

LETTER OF SUSPENSION MAILED

Oct 31, 1994

LETTER OF SUSPENSION MAILED

CORRESPONDENCE RECEIVED IN LAW OFFICE

Sep 29, 1994

CORRESPONDENCE RECEIVED IN LAW OFFICE

NON-FINAL ACTION MAILED

Apr 20, 1994

NON-FINAL ACTION MAILED

ASSIGNED TO EXAMINER

Apr 07, 1994

ASSIGNED TO EXAMINER

ERN

Get pre-filing clearance

Search 15M+ trademarks

Run a conflict check

Other Marks by Dr. Johannes Heidenhain GmbH

Other Marks in Class 009 — Electronics, software & scientific instruments

Other Marks by Daniel M. Gurfinkel

Resources

Company