Who owns the RIKEN trademark?

The RIKEN trademark is owned by Kabushiki Kaisha Riken.

What is the serial number for RIKEN?

The USPTO serial number for RIKEN is 73427754.

What is the registration number for RIKEN?

RIKEN is registered under USPTO registration number 1314308.

Sealvo

Home Search: RIKENRIKEN #73427754

Back

Updated Sep 24, 2026·11 searches this week

View on USPTO TSDR Find similar marks

RIK

USPTO Trademark Record

REGISTERED

RIKEN

Q: What class is the RIKEN trademark registered in?

The RIKEN trademark is registered in Class 006 (Common metals, their alloys & metal goods), Class 011 (Lighting, heating, cooling & sanitary apparatus).

SN 73427754·Reg 1314308·Filed May 26, 1983

Owner Kabushiki Kaisha Riken

Common metals and their alloys, ores; metal materials for building and construction; transportable buildings of metal; non-electric cables and wires of common metal; small items of metal hardware; metal containers for storage or transport; safes.; Apparatus and installations for lighting, heating, cooling, steam generating, cooking, drying, ventilating, water supply and sanitary purposes.

RIKEN (Serial No. 73427754), Registration No. 1314308, is a registered US trademark filed on May 26, 1983 by Kabushiki Kaisha Riken. This trademark covers Class 006 (Common metals, their alloys & metal goods), Class 011 (Lighting, heating, cooling & sanitary apparatus).

Section 8/9 declaration window: January 15, 2035

Conflict Analysis

Full conflict analysis for RIKEN (SN 73427754) against the USPTO database with detailed risk factor explanations. AI-powered — takes ~1-2 min.

Mark Intelligence

RIKEN (Reg. #1314308) is a registered US trademark that has been protecting its owner, Kabushiki Kaisha Riken, since 1983. The mark covers Class 006 (Common metals, their alloys & metal goods) and Class 011 (Lighting, heating, cooling & sanitary apparatus) respectively. Goods and services include Common metals and their alloys, ores; metal materials for building and construction; transportable buildings of metal; n.... The mark faced 1 opposition proceeding during prosecution.

FILED

May 26, 1983

SERIAL

73427754

REG#

1314308

REGISTERED

Jan 15, 1985

Filing Information

StatusREGISTERED

Filing DateMay 26, 1983

Serial Number73427754

Registration No.1314308

Registration DateJan 15, 1985

Status DateOct 06, 2025

Published for OppositionNov 06, 1984

Filing Basis & Declarations

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

Full Goods & Services

CLASSES

OFFICE

USPTO

COUNTRY

Class 006Common metals, their alloys & metal goods

US codes: 034

First use anywhere: Oct 31, 1982

First use in commerce: Oct 31, 1982

Class 011Lighting, heating, cooling & sanitary apparatus

US codes: 013

First use anywhere: Oct 31, 1982

First use in commerce: Oct 31, 1982

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

30 events

CASE ASSIGNED TO POST REGISTRATION PARALEGAL

Oct 06, 2025

CASE ASSIGNED TO POST REGISTRATION PARALEGAL

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

Oct 06, 2025

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

REGISTERED AND RENEWED (THIRD RENEWAL - 10 YRS)

Oct 06, 2025

REGISTERED AND RENEWED (THIRD RENEWAL - 10 YRS)

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

Oct 06, 2025

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

TEAS SECTION 8 & 9 RECEIVED

Jun 12, 2025

TEAS SECTION 8 & 9 RECEIVED

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

Oct 29, 2014

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

REGISTERED AND RENEWED (SECOND RENEWAL - 10 YRS)

Oct 29, 2014

REGISTERED AND RENEWED (SECOND RENEWAL - 10 YRS)

NOTICE OF ACCEPTANCE OF SEC. 8 & 9 - MAILED

Oct 29, 2014

NOTICE OF ACCEPTANCE OF SEC. 8 & 9 - MAILED

TEAS SECTION 8 & 9 RECEIVED

Oct 27, 2014

TEAS SECTION 8 & 9 RECEIVED

CASE FILE IN TICRS

Dec 30, 2008

CASE FILE IN TICRS

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

Jan 13, 2005

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

REGISTERED AND RENEWED (FIRST RENEWAL - 10 YRS)

Jan 13, 2005

REGISTERED AND RENEWED (FIRST RENEWAL - 10 YRS)

PAPER RECEIVED

Dec 16, 2004

PAPER RECEIVED

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

Dec 16, 2004

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

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

Dec 18, 1990

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

RESPONSE RECEIVED TO POST REG. ACTION

Dec 17, 1990

RESPONSE RECEIVED TO POST REG. ACTION

POST REGISTRATION ACTION MAILED - SEC. 8 & 15

Nov 29, 1990

POST REGISTRATION ACTION MAILED - SEC. 8 & 15

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

Sep 10, 1990

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

REGISTERED-PRINCIPAL REGISTER

Jan 15, 1985

REGISTERED-PRINCIPAL REGISTER

PUBLISHED FOR OPPOSITION

Nov 06, 1984

PUBLISHED FOR OPPOSITION

NOTICE OF PUBLICATION

Oct 19, 1984

NOTICE OF PUBLICATION

APPROVED FOR PUB - PRINCIPAL REGISTER

Jul 16, 1984

APPROVED FOR PUB - PRINCIPAL REGISTER

ALLOWANCE/COUNT WITHDRAWN

Jun 20, 1984

ALLOWANCE/COUNT WITHDRAWN

CORRESPONDENCE RECEIVED IN LAW OFFICE

May 21, 1984

CORRESPONDENCE RECEIVED IN LAW OFFICE

NON-FINAL ACTION MAILED

Apr 19, 1984

NON-FINAL ACTION MAILED

CORRESPONDENCE RECEIVED IN LAW OFFICE

Apr 11, 1984

CORRESPONDENCE RECEIVED IN LAW OFFICE

Apr 11, 1984

CORRESPONDENCE RECEIVED IN LAW OFFICE

Mar 22, 1984

CORRESPONDENCE RECEIVED IN LAW OFFICE

NON-FINAL ACTION MAILED

Jan 24, 1984

NON-FINAL ACTION MAILED

ASSIGNED TO EXAMINER

Dec 27, 1983

ASSIGNED TO EXAMINER

Other Marks by Kabushiki Kaisha Riken

Additional USPTO filings from the same owner.

PYR

PYROMAX

73427771

Kabushiki Kaisha Riken

REGISTERED

RIK

73436149

Kabushiki Kaisha Riken

REGISTERED

TRI

TRIBORIK

79339778

KABUSHIKI KAISHA RIKEN

REGISTERED

TRI

TRIBORIK

79334245

KABUSHIKI KAISHA RIKEN

REGISTERED

Other Marks in Class 006 — Common metals, their alloys & metal goods

Recently filed and registered marks in the same international class.

RIK

RIKEN

73378024

Kabushiki Kaisha Riken

ABANDONED

NPR

NPR-RIKEN

79388176

NIPPON PISTON RING CO., LTD.

PENDING

Other Marks by Bradford R.Czerwonky

Additional USPTO filings handled by the same attorney of record.

PYR

PYROMAX

73427771

REGISTERED

RIKEN

Run a conflict check

Other Marks by Kabushiki Kaisha Riken

Other Marks in Class 006 — Common metals, their alloys & metal goods

Other Marks by Bradford R.Czerwonky

Get pre-filing clearance

Search 15M+ trademarks

Resources

Company