Who owns the GAMMA KNIFE trademark?

The GAMMA KNIFE trademark is owned by ELEKTA AB (PUBL).

What class is the GAMMA KNIFE trademark registered in?

The GAMMA KNIFE trademark is registered in Class 010 (Surgical, medical, dental & veterinary apparatus).

What is the serial number for GAMMA KNIFE?

The USPTO serial number for GAMMA KNIFE is 74162711.

What is the registration number for GAMMA KNIFE?

GAMMA KNIFE is registered under USPTO registration number 1723535.

Sealvo

Home Search: GAMMA KNIFEGAMMA KNIFE #74162711

Back

Updated Sep 16, 2026·35 searches this week

View on USPTO TSDR Find similar marks

GAM

USPTO Trademark Record

REGISTERED

GAMMA KNIFE

SN 74162711·Reg 1723535·Filed May 01, 1991

Owner ELEKTA AB (PUBL)

Surgical, medical, dental and veterinary apparatus and instruments; artificial limbs, eyes and teeth; spectacles, contact lenses and sunglasses; orthopaedic articles; suture materials; therapeutic and assistive devices adapted for persons with disabilities; massage apparatus; apparatus, devices and articles for nursing infants; sexual activity apparatus, devices and articles.

GAMMA KNIFE (Serial No. 74162711), Registration No. 1723535, is a registered US trademark filed on May 01, 1991 by ELEKTA AB (PUBL). This trademark covers Class 010 (Surgical, medical, dental & veterinary apparatus).

Section 8/9 declaration window: October 13, 2032

Conflict Analysis

Full conflict analysis for GAMMA KNIFE (SN 74162711) against the USPTO database with detailed risk factor explanations. AI-powered — takes ~1-2 min.

Mark Intelligence

GAMMA KNIFE (Reg. #1723535) is a registered US trademark that has been protecting its owner, ELEKTA AB (PUBL), since 1991. The mark covers Class 010 (Surgical, medical, dental & veterinary apparatus). Goods and services include Surgical, medical, dental and veterinary apparatus and instruments; artificial limbs, eyes and teeth; spectacles, contac.... The mark faced 1 opposition proceeding during prosecution.

FILED

May 01, 1991

SERIAL

74162711

REG#

1723535

REGISTERED

Oct 13, 1992

Filing Information

StatusREGISTERED

Filing DateMay 01, 1991

Serial Number74162711

Registration No.1723535

Registration DateOct 13, 1992

Status DateApr 18, 2023

Published for OppositionJul 21, 1992

Filing Basis & Declarations

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

Full Goods & Services

CLASSES

OFFICE

USPTO

COUNTRY

Class 010Surgical, medical, dental & veterinary apparatus

US codes: 044

First use anywhere: Nov 30, 1967

First use in commerce: Dec 31, 1986

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

Run a conflict check

Search by serial number, mark name, or logo. See conflicting marks ranked by risk with clear explanations of what contributed.

Run conflict check

Status History

42 events

TEAS CHANGE OF OWNER ADDRESS RECEIVED

Jul 15, 2026

TEAS CHANGE OF OWNER ADDRESS RECEIVED

APPLICANT/CORRESPONDENCE CHANGES (NON-RESPONSIVE) ENTERED

Jul 15, 2026

APPLICANT/CORRESPONDENCE CHANGES (NON-RESPONSIVE) ENTERED

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

Jul 15, 2026

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

ATTORNEY/DOM.REP.REVOKED AND/OR APPOINTED

Jul 15, 2026

ATTORNEY/DOM.REP.REVOKED AND/OR APPOINTED

TEAS WITHDRAWAL AS DOMESTIC REPRESENTATIVE RECEIVED

Jul 15, 2026

TEAS WITHDRAWAL AS DOMESTIC REPRESENTATIVE RECEIVED

TEAS CHANGE OF DOMESTIC REPRESENTATIVES ADDRESS

Jul 15, 2026

TEAS CHANGE OF DOMESTIC REPRESENTATIVES ADDRESS

TEAS CHANGE OF CORRESPONDENCE RECEIVED

Jul 15, 2026

TEAS CHANGE OF CORRESPONDENCE RECEIVED

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

Apr 19, 2026

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

ATTORNEY/DOM.REP.REVOKED AND/OR APPOINTED

Apr 19, 2026

ATTORNEY/DOM.REP.REVOKED AND/OR APPOINTED

TEAS CHANGE OF CORRESPONDENCE RECEIVED

Apr 19, 2026

TEAS CHANGE OF CORRESPONDENCE RECEIVED

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

Apr 18, 2023

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

REGISTERED AND RENEWED (THIRD RENEWAL - 10 YRS)

Apr 18, 2023

REGISTERED AND RENEWED (THIRD RENEWAL - 10 YRS)

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

Apr 18, 2023

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

CASE ASSIGNED TO POST REGISTRATION PARALEGAL

Apr 17, 2023

CASE ASSIGNED TO POST REGISTRATION PARALEGAL

TEAS SECTION 8 & 9 RECEIVED

Oct 05, 2022

TEAS SECTION 8 & 9 RECEIVED

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

Oct 13, 2021

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

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

Jan 16, 2015

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

ATTORNEY/DOM.REP.REVOKED AND/OR APPOINTED

Jan 16, 2015

ATTORNEY/DOM.REP.REVOKED AND/OR APPOINTED

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

Oct 16, 2012

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

REGISTERED AND RENEWED (SECOND RENEWAL - 10 YRS)

Oct 16, 2012

REGISTERED AND RENEWED (SECOND RENEWAL - 10 YRS)

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

Oct 16, 2012

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

TEAS SECTION 8 & 9 RECEIVED

Oct 11, 2012

TEAS SECTION 8 & 9 RECEIVED

CASE FILE IN TICRS

Mar 12, 2008

CASE FILE IN TICRS

REVIEW OF CORRESPONDENCE COMPLETE

Oct 04, 2006

REVIEW OF CORRESPONDENCE COMPLETE

PAPER RECEIVED

Aug 01, 2005

PAPER RECEIVED

TEAS CHANGE OF CORRESPONDENCE RECEIVED

Apr 28, 2004

TEAS CHANGE OF CORRESPONDENCE RECEIVED

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

May 19, 2003

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

REGISTERED AND RENEWED (FIRST RENEWAL - 10 YRS)

May 19, 2003

REGISTERED AND RENEWED (FIRST RENEWAL - 10 YRS)

PAPER RECEIVED

Apr 11, 2003

PAPER RECEIVED

RESPONSE RECEIVED TO POST REG. ACTION - SEC. 8 & 9

Apr 11, 2003

RESPONSE RECEIVED TO POST REG. ACTION - SEC. 8 & 9

POST REGISTRATION ACTION MAILED - SEC. 8 & 9

Jan 29, 2003

POST REGISTRATION ACTION MAILED - SEC. 8 & 9

PAPER RECEIVED

Oct 10, 2002

PAPER RECEIVED

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

Oct 10, 2002

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

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

Feb 11, 1999

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

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

Oct 07, 1998

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

REGISTERED-PRINCIPAL REGISTER

Oct 13, 1992

REGISTERED-PRINCIPAL REGISTER

PUBLISHED FOR OPPOSITION

Jul 21, 1992

PUBLISHED FOR OPPOSITION

NOTICE OF PUBLICATION

Jun 19, 1992

NOTICE OF PUBLICATION

APPROVED FOR PUB - PRINCIPAL REGISTER

Mar 31, 1992

APPROVED FOR PUB - PRINCIPAL REGISTER

CORRESPONDENCE RECEIVED IN LAW OFFICE

Feb 20, 1992

CORRESPONDENCE RECEIVED IN LAW OFFICE

NON-FINAL ACTION MAILED

Sep 03, 1991

NON-FINAL ACTION MAILED

ASSIGNED TO EXAMINER

Aug 08, 1991

ASSIGNED TO EXAMINER

Other Marks by ELEKTA AB (PUBL)

Additional USPTO filings from the same owner.

IRI

IRIS

79410294

Elekta AB (publ)

REGISTERED

ELE

ELEKTA

79230506

Elekta AB (publ)

REGISTERED

ELE

ELEKTA ONE

79385422

Elekta AB (publ)

REGISTERED

LEK

LEKSELL GAMMA KNIFE

76549434

Elekta AB (publ)

REGISTERED

Other Marks in Class 010 — Surgical, medical, dental & veterinary apparatus

Recently filed and registered marks in the same international class.

LEK

LEKSELL GAMMA KNIFE

76549434

Elekta AB (publ)

REGISTERED

GAM

GAMMA

79350079

Incombalt SIA

REGISTERED

GAM

GAMMA

78152710

HOWMEDICA OSTEONICS CORP.

REGISTERED

GAM

GAMMA-BSM

77834591

ETEX CORPORATION

REGISTERED

Other Marks by Stephanie H. Bald

Additional USPTO filings handled by the same attorney of record.

AME

AMERICA'S SMALL BUSINESS CHAMPION

99605379

REGISTERED

KOG

KOGOD MADE IN AMERICA AUTO INDEX

86505424

REGISTERED

INT

INTELLITRAIN

86687662

REGISTERED

ENT

ENTRADA

99544818

REGISTERED

GAMMA KNIFE

Run a conflict check

Other Marks by ELEKTA AB (PUBL)

Other Marks in Class 010 — Surgical, medical, dental & veterinary apparatus

Other Marks by Stephanie H. Bald

Get pre-filing clearance

Search 15M+ trademarks

Resources

Company