Who owns the PI trademark?

The PI trademark is owned by Prince Innovation Ltd..

What is the serial number for PI?

The USPTO serial number for PI is 88690383.

What is the registration number for PI?

PI is registered under USPTO registration number 6123157.

Sealvo

Home Search: PIPI #88690383

Back

Updated Sep 29, 2026·25 searches this week

View on USPTO TSDR Find similar marks

USPTO Trademark Record

REGISTERED

PI

Q: What class is the PI trademark registered in?

The PI trademark is registered in Class 008 (Hand tools, cutlery & side arms), Class 011 (Lighting, heating, cooling & sanitary apparatus).

SN 88690383·Reg 6123157·Filed Nov 13, 2019

Owner Prince Innovation Ltd.

Hand-operated hand tools and implements; cutlery; side arms, except firearms; razors.; Apparatus and installations for lighting, heating, cooling, steam generating, cooking, drying, ventilating, water supply and sanitary purposes.

PI (Serial No. 88690383), Registration No. 6123157, is a registered US trademark filed on Nov 13, 2019 by Prince Innovation Ltd.. This trademark covers Class 008 (Hand tools, cutlery & side arms), Class 011 (Lighting, heating, cooling & sanitary apparatus).

Section 8/9 declaration window: August 12, 2030

Conflict Analysis

Full conflict analysis for PI (SN 88690383) against the USPTO database with detailed risk factor explanations. AI-powered — takes ~1-2 min.

Mark Intelligence

PI (Reg. #6123157) is a registered US trademark that has been protecting its owner, Prince Innovation Ltd., since 2019. The mark covers Class 008 (Hand tools, cutlery & side arms) and Class 011 (Lighting, heating, cooling & sanitary apparatus) respectively. Goods and services include Hand-operated hand tools and implements; cutlery; side arms, except firearms; razors.; Apparatus and installations for l.... The mark faced 1 opposition proceeding during prosecution.

FILED

Nov 13, 2019

SERIAL

88690383

REG#

6123157

REGISTERED

Aug 11, 2020

Filing Information

StatusREGISTERED

Filing DateNov 13, 2019

Serial Number88690383

Registration No.6123157

Registration DateAug 11, 2020

Status DateAug 11, 2020

Published for OppositionMay 26, 2020

Filing Basis & Declarations

Filed as Use ApplicationUse Application CurrentlyTrademark

Full Goods & Services

CLASSES

OFFICE

USPTO

COUNTRY

Class 008Hand tools, cutlery & side arms

US codes: 023, 028, 044

First use anywhere: Nov 08, 2019

First use in commerce: Nov 08, 2019

Hand-operated hand tools and implements; cutlery; side arms, except firearms; razors.

Class 011Lighting, heating, cooling & sanitary apparatus

US codes: 013, 021, 023, 031, 034

First use anywhere: Feb 21, 2018

First use in commerce: Feb 21, 2018

Apparatus and installations for lighting, heating, cooling, steam generating, cooking, drying, ventilating, water supply and sanitary purposes.

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

24 events

TEAS SECTION 8 RECEIVED

Jul 31, 2026

TEAS SECTION 8 RECEIVED

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

Aug 11, 2025

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

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

Aug 02, 2022

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

ATTORNEY/DOM.REP.REVOKED AND/OR APPOINTED

Aug 02, 2022

ATTORNEY/DOM.REP.REVOKED AND/OR APPOINTED

TEAS CHANGE OF CORRESPONDENCE RECEIVED

Aug 02, 2022

TEAS CHANGE OF CORRESPONDENCE RECEIVED

REGISTERED-PRINCIPAL REGISTER

Aug 11, 2020

REGISTERED-PRINCIPAL REGISTER

PUBLISHED FOR OPPOSITION

May 26, 2020

PUBLISHED FOR OPPOSITION

OFFICIAL GAZETTE PUBLICATION CONFIRMATION E-MAILED

May 26, 2020

OFFICIAL GAZETTE PUBLICATION CONFIRMATION E-MAILED

NOTIFICATION OF NOTICE OF PUBLICATION E-MAILED

May 06, 2020

NOTIFICATION OF NOTICE OF PUBLICATION E-MAILED

EXAMINERS AMENDMENT -WRITTEN

Apr 16, 2020

EXAMINERS AMENDMENT -WRITTEN

EXAMINER'S AMENDMENT ENTERED

Apr 16, 2020

EXAMINER'S AMENDMENT ENTERED

APPROVED FOR PUB - PRINCIPAL REGISTER

Apr 16, 2020

APPROVED FOR PUB - PRINCIPAL REGISTER

EXAMINERS AMENDMENT E-MAILED

Apr 16, 2020

EXAMINERS AMENDMENT E-MAILED

NOTIFICATION OF EXAMINERS AMENDMENT E-MAILED

Apr 16, 2020

NOTIFICATION OF EXAMINERS AMENDMENT E-MAILED

CORRESPONDENCE RECEIVED IN LAW OFFICE

Mar 18, 2020

CORRESPONDENCE RECEIVED IN LAW OFFICE

TEAS/EMAIL CORRESPONDENCE ENTERED

Mar 18, 2020

TEAS/EMAIL CORRESPONDENCE ENTERED

TEAS RESPONSE TO OFFICE ACTION RECEIVED

Mar 18, 2020

TEAS RESPONSE TO OFFICE ACTION RECEIVED

NON-FINAL ACTION WRITTEN

Feb 21, 2020

NON-FINAL ACTION WRITTEN

NON-FINAL ACTION E-MAILED

Feb 21, 2020

NON-FINAL ACTION E-MAILED

NOTIFICATION OF NON-FINAL ACTION E-MAILED

Feb 21, 2020

NOTIFICATION OF NON-FINAL ACTION E-MAILED

ASSIGNED TO EXAMINER

Feb 18, 2020

ASSIGNED TO EXAMINER

NOTICE OF DESIGN SEARCH CODE E-MAILED

Nov 20, 2019

NOTICE OF DESIGN SEARCH CODE E-MAILED

NEW APPLICATION OFFICE SUPPLIED DATA ENTERED

Nov 19, 2019

NEW APPLICATION OFFICE SUPPLIED DATA ENTERED

NEW APPLICATION ENTERED

Nov 16, 2019

NEW APPLICATION ENTERED

Other Marks in Class 008 — Hand tools, cutlery & side arms

Recently filed and registered marks in the same international class.

97238883

Solo Brands, LLC

REGISTERED

97468546

Pi Equipment LLC

ABANDONED

PIK

PI KNIFE & TOOL

99448070

Pi Enterprises LLC

PENDING

Other Marks by Ray Meiers

Additional USPTO filings handled by the same attorney of record.

SUP

SUPERCOUNTER

86645664

REGISTERED

SIR

SIRIUS

86444356

86618716

LogoMark

86618746

REGISTERED

PI

Run a conflict check

Other Marks in Class 008 — Hand tools, cutlery & side arms

Other Marks by Ray Meiers

Get pre-filing clearance

Search 15M+ trademarks

Resources

Company