Who owns the SHAMROCK trademark?

The SHAMROCK trademark is owned by Dem-Con Companies, LLC.

What is the serial number for SHAMROCK?

The USPTO serial number for SHAMROCK is 87719302.

What is the registration number for SHAMROCK?

SHAMROCK is registered under USPTO registration number 5999494.

Sealvo

Home Search: SHAMROCKSHAMROCK #87719302

Back

Updated Sep 17, 2026·27 searches this week

View on USPTO TSDR Find similar marks

SHA

USPTO Trademark Record

REGISTERED

SHAMROCK

Q: What class is the SHAMROCK trademark registered in?

The SHAMROCK trademark is registered in Class 035 (Advertising, business management & retail services), Class 039 (Transportation, travel & storage services), Class 040 (Treatment & processing of materials).

SN 87719302·Reg 5999494·Filed Dec 13, 2017

Owner Dem-Con Companies, LLC

Advertising; business management, organization and administration; office functions.; Transport; packaging and storage of goods; travel arrangement.; Treatment of materials; recycling of waste and trash; air purification and treatment of water; printing services; food and drink preservation.

SHAMROCK (Serial No. 87719302), Registration No. 5999494, is a registered US trademark filed on Dec 13, 2017 by Dem-Con Companies, LLC. This trademark covers Class 035 (Advertising, business management & retail services), Class 039 (Transportation, travel & storage services), Class 040 (Treatment & processing of materials).

Section 8/9 declaration window: March 04, 2030

Conflict Analysis

Full conflict analysis for SHAMROCK (SN 87719302) against the USPTO database with detailed risk factor explanations. AI-powered — takes ~1-2 min.

Mark Intelligence

SHAMROCK (Reg. #5999494) is a registered US trademark that has been protecting its owner, Dem-Con Companies, LLC, since 2017. The mark covers Class 035 (Advertising, business management & retail services), Class 039 (Transportation, travel & storage services) and Class 040 (Treatment & processing of materials) respectively. Goods and services include Advertising; business management, organization and administration; office functions.; Transport; packaging and storage o.... The mark faced 1 opposition proceeding during prosecution.

FILED

Dec 13, 2017

SERIAL

87719302

REG#

5999494

REGISTERED

Mar 03, 2020

Owner

Applicant

Dem-Con Companies, LLC

Entity

LLC

State

Address

13020 Dem-Con Drive, Shakopee, MN, 55379

Country

Attorney

NameCourtney Thompson

Law firm

Courtney Thompson Fredrikson & Byron, P.A.

Docket

045091.0020

Address

60 South Sixth Street, Suite 1500, MINNEAPOLIS, MN 55402, 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 DateDec 13, 2017

Serial Number87719302

Registration No.5999494

Registration DateMar 03, 2020

Status DateAug 01, 2025

Published for OppositionDec 17, 2019

Next RenewalMarch 04, 2030

Mark TypeDesign with words

Attorney Docket045091.0020

Status DescriptionLive and registered, Section 8 and 15 accepted

Filing Signals

FILED

2017

YEARS AGO

CLASSES

MADRID FILINGS

—

Opposed 1× during prosecution

Search 15M+ trademarks

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

Search now

Filing Basis & Declarations

Filed as Use ApplicationUse Application CurrentlySection 8 AcceptedSection 15 Acknowledged

Full Goods & Services

CLASSES

OFFICE

USPTO

COUNTRY

Class 035Advertising, business management & retail services

US codes: 100, 101, 102

First use anywhere: Nov 30, 1997

First use in commerce: Nov 30, 1997

Advertising; business management, organization and administration; office functions.

Class 039Transportation, travel & storage services

US codes: 100, 105

First use anywhere: Nov 30, 1997

First use in commerce: Nov 30, 1997

Transport; packaging and storage of goods; travel arrangement.

Class 040Treatment & processing of materials

US codes: 100, 103, 106

First use anywhere: Nov 30, 1997

First use in commerce: Nov 30, 1997

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

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

33 events

CASE ASSIGNED TO POST REGISTRATION PARALEGAL

Aug 01, 2025

CASE ASSIGNED TO POST REGISTRATION PARALEGAL

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

Aug 01, 2025

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

NOTICE OF ACCEPTANCE OF SEC. 8 & 15 - E-MAILED

Aug 01, 2025

NOTICE OF ACCEPTANCE OF SEC. 8 & 15 - E-MAILED

TEAS SECTION 8 & 15 RECEIVED

Mar 27, 2025

TEAS SECTION 8 & 15 RECEIVED

COURTESY REMINDER - SEC. 8 (6-YR) E-MAILED

Mar 03, 2025

COURTESY REMINDER - SEC. 8 (6-YR) E-MAILED

REGISTERED-PRINCIPAL REGISTER

Mar 03, 2020

REGISTERED-PRINCIPAL REGISTER

PUBLISHED FOR OPPOSITION

Dec 17, 2019

PUBLISHED FOR OPPOSITION

OFFICIAL GAZETTE PUBLICATION CONFIRMATION E-MAILED

Dec 17, 2019

OFFICIAL GAZETTE PUBLICATION CONFIRMATION E-MAILED

NOTIFICATION OF NOTICE OF PUBLICATION E-MAILED

Nov 27, 2019

NOTIFICATION OF NOTICE OF PUBLICATION E-MAILED

ASSIGNED TO LIE

Nov 14, 2019

ASSIGNED TO LIE

APPROVED FOR PUB - PRINCIPAL REGISTER

Nov 09, 2019

APPROVED FOR PUB - PRINCIPAL REGISTER

TEAS REQUEST FOR RECONSIDERATION RECEIVED

Nov 08, 2019

TEAS REQUEST FOR RECONSIDERATION RECEIVED

CORRESPONDENCE RECEIVED IN LAW OFFICE

Nov 08, 2019

CORRESPONDENCE RECEIVED IN LAW OFFICE

TEAS/EMAIL CORRESPONDENCE ENTERED

Nov 08, 2019

TEAS/EMAIL CORRESPONDENCE ENTERED

FINAL REFUSAL E-MAILED

May 08, 2019

FINAL REFUSAL E-MAILED

FINAL REFUSAL WRITTEN

May 08, 2019

FINAL REFUSAL WRITTEN

NOTIFICATION OF FINAL REFUSAL EMAILED

May 08, 2019

NOTIFICATION OF FINAL REFUSAL EMAILED

TEAS/EMAIL CORRESPONDENCE ENTERED

Apr 17, 2019

TEAS/EMAIL CORRESPONDENCE ENTERED

CORRESPONDENCE RECEIVED IN LAW OFFICE

Apr 16, 2019

CORRESPONDENCE RECEIVED IN LAW OFFICE

TEAS RESPONSE TO OFFICE ACTION RECEIVED

Apr 16, 2019

TEAS RESPONSE TO OFFICE ACTION RECEIVED

NON-FINAL ACTION E-MAILED

Oct 17, 2018

NON-FINAL ACTION E-MAILED

NOTIFICATION OF NON-FINAL ACTION E-MAILED

Oct 17, 2018

NOTIFICATION OF NON-FINAL ACTION E-MAILED

NON-FINAL ACTION WRITTEN

Oct 17, 2018

NON-FINAL ACTION WRITTEN

TEAS/EMAIL CORRESPONDENCE ENTERED

Sep 25, 2018

TEAS/EMAIL CORRESPONDENCE ENTERED

CORRESPONDENCE RECEIVED IN LAW OFFICE

Sep 24, 2018

CORRESPONDENCE RECEIVED IN LAW OFFICE

TEAS RESPONSE TO OFFICE ACTION RECEIVED

Sep 24, 2018

TEAS RESPONSE TO OFFICE ACTION RECEIVED

NOTIFICATION OF NON-FINAL ACTION E-MAILED

Mar 23, 2018

NOTIFICATION OF NON-FINAL ACTION E-MAILED

ASSIGNED TO EXAMINER

Mar 23, 2018

ASSIGNED TO EXAMINER

NON-FINAL ACTION WRITTEN

Mar 23, 2018

NON-FINAL ACTION WRITTEN

NON-FINAL ACTION E-MAILED

Mar 23, 2018

NON-FINAL ACTION E-MAILED

NOTICE OF DESIGN SEARCH CODE E-MAILED

Dec 27, 2017

NOTICE OF DESIGN SEARCH CODE E-MAILED

NEW APPLICATION OFFICE SUPPLIED DATA ENTERED

Dec 26, 2017

NEW APPLICATION OFFICE SUPPLIED DATA ENTERED

NEW APPLICATION ENTERED

Dec 16, 2017

NEW APPLICATION ENTERED

Other Marks by Dem-Con Companies, LLC

Additional USPTO filings from the same owner.

SHA

SHAMROCK

87719289

Dem-Con Companies, LLC

REGISTERED

DEM

DEM-CON COMPANIES

87719339

Dem-Con Companies, LLC

REGISTERED

DCD

DC DEM-CON COMPANIES

87719433

Dem-Con Companies, LLC

REGISTERED

Other Marks in Class 035 — Advertising, business management & retail services

Recently filed and registered marks in the same international class.

SHA

SHAMROCK

87719289

Dem-Con Companies, LLC

REGISTERED

SHA

SHAMROCK

78141207

Valero Marketing and Supply Company

REGISTERED

SHA

SHAMROCK

78141810

Valero Marketing and Supply Company

REGISTERED

SHA

SHAMROCK

86198275

SHAMROCK TEKSTIL SANAYI VE TICARET ANONIM SIRKETI

ABANDONED

Other Marks by Courtney Thompson

Additional USPTO filings handled by the same attorney of record.

TRA

TRAVEL WELL

99279662

REGISTERED

LOG

LogoMark

99311575

REGISTERED

LOG

LogoMark

99311581

REGISTERED

VEL

VELP

79437460

REGISTERED

Sealvo

Home Search: SHAMROCKSHAMROCK #87719302

Back

Updated Sep 17, 2026·27 searches this week

View on USPTO TSDR Find similar marks

SHA

USPTO Trademark Record

REGISTERED

SHAMROCK

SN 87719302·Reg 5999494·Filed Dec 13, 2017

Owner Dem-Con Companies, LLC

Section 8/9 declaration window: March 04, 2030

Conflict Analysis

Full conflict analysis for SHAMROCK (SN 87719302) against the USPTO database with detailed risk factor explanations. AI-powered — takes ~1-2 min.

Mark Intelligence

FILED

Dec 13, 2017

SERIAL

87719302

REG#

5999494

REGISTERED

Mar 03, 2020

Owner

Applicant

Dem-Con Companies, LLC

Entity

LLC

State

Address

13020 Dem-Con Drive, Shakopee, MN, 55379

Country

Attorney

NameCourtney Thompson

Law firm

Courtney Thompson Fredrikson & Byron, P.A.

Docket

045091.0020

Address

60 South Sixth Street, Suite 1500, MINNEAPOLIS, MN 55402, 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 DateDec 13, 2017

Serial Number87719302

Registration No.5999494

Registration DateMar 03, 2020

Status DateAug 01, 2025

Published for OppositionDec 17, 2019

Next RenewalMarch 04, 2030

Mark TypeDesign with words

Attorney Docket045091.0020

Status DescriptionLive and registered, Section 8 and 15 accepted

Filing Signals

FILED

2017

YEARS AGO

CLASSES

MADRID FILINGS

—

Opposed 1× during prosecution

Search 15M+ trademarks

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

Search now

Filing Basis & Declarations

Filed as Use ApplicationUse Application CurrentlySection 8 AcceptedSection 15 Acknowledged

Full Goods & Services

CLASSES

OFFICE

USPTO

COUNTRY

Class 035Advertising, business management & retail services

US codes: 100, 101, 102

First use anywhere: Nov 30, 1997

First use in commerce: Nov 30, 1997

Advertising; business management, organization and administration; office functions.

Class 039Transportation, travel & storage services

US codes: 100, 105

First use anywhere: Nov 30, 1997

First use in commerce: Nov 30, 1997

Transport; packaging and storage of goods; travel arrangement.

Class 040Treatment & processing of materials

US codes: 100, 103, 106

First use anywhere: Nov 30, 1997

First use in commerce: Nov 30, 1997

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

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

33 events

CASE ASSIGNED TO POST REGISTRATION PARALEGAL

Aug 01, 2025

CASE ASSIGNED TO POST REGISTRATION PARALEGAL

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

Aug 01, 2025

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

NOTICE OF ACCEPTANCE OF SEC. 8 & 15 - E-MAILED

Aug 01, 2025

NOTICE OF ACCEPTANCE OF SEC. 8 & 15 - E-MAILED

TEAS SECTION 8 & 15 RECEIVED

Mar 27, 2025

TEAS SECTION 8 & 15 RECEIVED

COURTESY REMINDER - SEC. 8 (6-YR) E-MAILED

Mar 03, 2025

COURTESY REMINDER - SEC. 8 (6-YR) E-MAILED

REGISTERED-PRINCIPAL REGISTER

Mar 03, 2020

REGISTERED-PRINCIPAL REGISTER

PUBLISHED FOR OPPOSITION

Dec 17, 2019

PUBLISHED FOR OPPOSITION

OFFICIAL GAZETTE PUBLICATION CONFIRMATION E-MAILED

Dec 17, 2019

OFFICIAL GAZETTE PUBLICATION CONFIRMATION E-MAILED

NOTIFICATION OF NOTICE OF PUBLICATION E-MAILED

Nov 27, 2019

NOTIFICATION OF NOTICE OF PUBLICATION E-MAILED

ASSIGNED TO LIE

Nov 14, 2019

ASSIGNED TO LIE

APPROVED FOR PUB - PRINCIPAL REGISTER

Nov 09, 2019

APPROVED FOR PUB - PRINCIPAL REGISTER

TEAS REQUEST FOR RECONSIDERATION RECEIVED

Nov 08, 2019

TEAS REQUEST FOR RECONSIDERATION RECEIVED

CORRESPONDENCE RECEIVED IN LAW OFFICE

Nov 08, 2019

CORRESPONDENCE RECEIVED IN LAW OFFICE

TEAS/EMAIL CORRESPONDENCE ENTERED

Nov 08, 2019

TEAS/EMAIL CORRESPONDENCE ENTERED

FINAL REFUSAL E-MAILED

May 08, 2019

FINAL REFUSAL E-MAILED

FINAL REFUSAL WRITTEN

May 08, 2019

FINAL REFUSAL WRITTEN

NOTIFICATION OF FINAL REFUSAL EMAILED

May 08, 2019

NOTIFICATION OF FINAL REFUSAL EMAILED

TEAS/EMAIL CORRESPONDENCE ENTERED

Apr 17, 2019

TEAS/EMAIL CORRESPONDENCE ENTERED

CORRESPONDENCE RECEIVED IN LAW OFFICE

Apr 16, 2019

CORRESPONDENCE RECEIVED IN LAW OFFICE

TEAS RESPONSE TO OFFICE ACTION RECEIVED

Apr 16, 2019

TEAS RESPONSE TO OFFICE ACTION RECEIVED

NON-FINAL ACTION E-MAILED

Oct 17, 2018

NON-FINAL ACTION E-MAILED

NOTIFICATION OF NON-FINAL ACTION E-MAILED

Oct 17, 2018

NOTIFICATION OF NON-FINAL ACTION E-MAILED

NON-FINAL ACTION WRITTEN

Oct 17, 2018

NON-FINAL ACTION WRITTEN

TEAS/EMAIL CORRESPONDENCE ENTERED

Sep 25, 2018

TEAS/EMAIL CORRESPONDENCE ENTERED

CORRESPONDENCE RECEIVED IN LAW OFFICE

Sep 24, 2018

CORRESPONDENCE RECEIVED IN LAW OFFICE

TEAS RESPONSE TO OFFICE ACTION RECEIVED

Sep 24, 2018

TEAS RESPONSE TO OFFICE ACTION RECEIVED

NOTIFICATION OF NON-FINAL ACTION E-MAILED

Mar 23, 2018

NOTIFICATION OF NON-FINAL ACTION E-MAILED

ASSIGNED TO EXAMINER

Mar 23, 2018

ASSIGNED TO EXAMINER

NON-FINAL ACTION WRITTEN

Mar 23, 2018

NON-FINAL ACTION WRITTEN

NON-FINAL ACTION E-MAILED

Mar 23, 2018

NON-FINAL ACTION E-MAILED

NOTICE OF DESIGN SEARCH CODE E-MAILED

Dec 27, 2017

NOTICE OF DESIGN SEARCH CODE E-MAILED

NEW APPLICATION OFFICE SUPPLIED DATA ENTERED

Dec 26, 2017

NEW APPLICATION OFFICE SUPPLIED DATA ENTERED

NEW APPLICATION ENTERED

Dec 16, 2017

NEW APPLICATION ENTERED

Other Marks by Dem-Con Companies, LLC

Additional USPTO filings from the same owner.

SHA

SHAMROCK

87719289

Dem-Con Companies, LLC

REGISTERED

DEM

DEM-CON COMPANIES

87719339

Dem-Con Companies, LLC

REGISTERED

DCD

DC DEM-CON COMPANIES

87719433

Dem-Con Companies, LLC

REGISTERED

Other Marks in Class 035 — Advertising, business management & retail services

Recently filed and registered marks in the same international class.

SHA

SHAMROCK

87719289

Dem-Con Companies, LLC

REGISTERED

SHA

SHAMROCK

78141207

Valero Marketing and Supply Company

REGISTERED

SHA

SHAMROCK

78141810

Valero Marketing and Supply Company

REGISTERED

SHA

SHAMROCK

86198275

SHAMROCK TEKSTIL SANAYI VE TICARET ANONIM SIRKETI

ABANDONED

Other Marks by Courtney Thompson

Additional USPTO filings handled by the same attorney of record.

TRA

TRAVEL WELL

99279662

REGISTERED

LOG

LogoMark

99311575

REGISTERED

LOG

LogoMark

99311581

REGISTERED

VEL

VELP

79437460

REGISTERED