Who owns the CALIFORNIA HEMATOLOGY ONCOLOGY trademark?

The CALIFORNIA HEMATOLOGY ONCOLOGY trademark is owned by CALIFORNIA HEMATOLOGY ONCOLOGY MEDICAL GROUP.

What class is the CALIFORNIA HEMATOLOGY ONCOLOGY trademark registered in?

The CALIFORNIA HEMATOLOGY ONCOLOGY trademark is registered in Class 044 (Medical, veterinary & beauty care services).

What is the serial number for CALIFORNIA HEMATOLOGY ONCOLOGY?

The USPTO serial number for CALIFORNIA HEMATOLOGY ONCOLOGY is 99240813.

What is the registration number for CALIFORNIA HEMATOLOGY ONCOLOGY?

CALIFORNIA HEMATOLOGY ONCOLOGY is registered under USPTO registration number 8406244.

CAL

USPTO Trademark Record

REGISTERED

CALIFORNIA HEMATOLOGY ONCOLOGY

SN 99240813·Reg 8406244·Filed Jun 18, 2025

Owner CALIFORNIA HEMATOLOGY ONCOLOGY MEDICAL GROUP

Medical services; veterinary services; hygienic and beauty care for human beings or animals; agriculture, aquaculture, horticulture and forestry services.

CALIFORNIA HEMATOLOGY ONCOLOGY (Serial No. 99240813), Registration No. 8406244, is a registered US trademark filed on Jun 18, 2025 by CALIFORNIA HEMATOLOGY ONCOLOGY MEDICAL GROUP. This trademark covers Class 044 (Medical, veterinary & beauty care services).

early section 8: August 18, 2032

Mark Intelligence

CALIFORNIA HEMATOLOGY ONCOLOGY (Reg. #8406244) is a registered US trademark that has been protecting its owner, CALIFORNIA HEMATOLOGY ONCOLOGY MEDICAL GROUP, since 2025. The mark covers Class 044 (Medical, veterinary & beauty care services). Goods and services include Medical services; veterinary services; hygienic and beauty care for human beings or animals; agriculture, aquaculture, h.... The mark faced 1 opposition proceeding during prosecution.

FILED

Jun 18, 2025

SERIAL

99240813

REG#

8406244

REGISTERED

Aug 18, 2026

Owner

Applicant

CALIFORNIA HEMATOLOGY ONCOLOGY MEDICAL GROUP

Entity

Corporation

State

Address

390 North Sepulveda Boulevard, Suite 1020, El Segundo, CA, 90245

Country

Attorney

NameChet Olsen

Law firm

Chet Olsen Sage Law Partners

Address

9696 Culver Boulevard, Suite 301, Culver City, CA 90232, 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 DateJun 18, 2025

Serial Number99240813

Registration No.8406244

Registration DateAug 18, 2026

Status DateAug 18, 2026

Published for OppositionJan 20, 2026

Mark TypeDesign with words

Status DescriptionLive and registered

Filing Signals

FILED

2025

YEARS AGO

CLASSES

MADRID FILINGS

—

Opposed 1× during prosecution

Search 14M+ trademarks

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

Search now

Full Goods & Services

CLASSES

OFFICE

USPTO

COUNTRY

Class 044Medical, veterinary & beauty care services

US codes: 100, 101

First use anywhere: Mar 03, 2025

First use in commerce: Mar 03, 2025

Medical services; veterinary services; hygienic and beauty care for human beings or animals; agriculture, aquaculture, horticulture and forestry services.

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

Status History

23 events

REGISTERED-PRINCIPAL REGISTER

Aug 18, 2026

REGISTERED-PRINCIPAL REGISTER

NOTICE OF REGISTRATION CONFIRMATION EMAILED

Aug 18, 2026

NOTICE OF REGISTRATION CONFIRMATION EMAILED

ALLOWED PRINCIPAL REGISTER - SOU ACCEPTED

Jul 28, 2026

ALLOWED PRINCIPAL REGISTER - SOU ACCEPTED

NOTICE OF ACCEPTANCE OF STATEMENT OF USE E-MAILED

Jul 28, 2026

NOTICE OF ACCEPTANCE OF STATEMENT OF USE E-MAILED

STATEMENT OF USE PROCESSING COMPLETE

Jun 16, 2026

STATEMENT OF USE PROCESSING COMPLETE

NOA E-MAILED - SOU REQUIRED FROM APPLICANT

Mar 17, 2026

NOA E-MAILED - SOU REQUIRED FROM APPLICANT

TEAS STATEMENT OF USE RECEIVED

Mar 17, 2026

TEAS STATEMENT OF USE RECEIVED

USE AMENDMENT FILED

Mar 17, 2026

USE AMENDMENT FILED

PUBLISHED FOR OPPOSITION

Jan 20, 2026

PUBLISHED FOR OPPOSITION

OFFICIAL GAZETTE PUBLICATION CONFIRMATION E-MAILED

Jan 20, 2026

OFFICIAL GAZETTE PUBLICATION CONFIRMATION E-MAILED

NOTIFICATION OF NOTICE OF PUBLICATION E-MAILED

Jan 14, 2026

NOTIFICATION OF NOTICE OF PUBLICATION E-MAILED

APPROVED FOR PUB - PRINCIPAL REGISTER

Dec 19, 2025

APPROVED FOR PUB - PRINCIPAL REGISTER

TEAS RESPONSE TO OFFICE ACTION RECEIVED

Dec 17, 2025

TEAS RESPONSE TO OFFICE ACTION RECEIVED

CORRESPONDENCE RECEIVED IN LAW OFFICE

Dec 17, 2025

CORRESPONDENCE RECEIVED IN LAW OFFICE

TEAS/EMAIL CORRESPONDENCE ENTERED

Dec 17, 2025

TEAS/EMAIL CORRESPONDENCE ENTERED

NON-FINAL ACTION WRITTEN

Nov 10, 2025

NON-FINAL ACTION WRITTEN

NON-FINAL ACTION E-MAILED

Nov 10, 2025

NON-FINAL ACTION E-MAILED

NOTIFICATION OF NON-FINAL ACTION E-MAILED

Nov 10, 2025

NOTIFICATION OF NON-FINAL ACTION E-MAILED

ASSIGNED TO EXAMINER

Nov 06, 2025

ASSIGNED TO EXAMINER

NEW APPLICATION OFFICE SUPPLIED DATA ENTERED

Oct 25, 2025

NEW APPLICATION OFFICE SUPPLIED DATA ENTERED

NOTICE OF DESIGN SEARCH CODE E-MAILED

Oct 25, 2025

NOTICE OF DESIGN SEARCH CODE E-MAILED

NEW APPLICATION ENTERED

Jun 18, 2025

NEW APPLICATION ENTERED

APPLICATION FILING RECEIPT MAILED

Jun 18, 2025

APPLICATION FILING RECEIPT MAILED

CALIFORNIA HEMATOLOGY ONCOLOGY

Get pre-filing clearance

Search 14M+ trademarks

Run a conflict check

Other Marks in Class 044 — Medical, veterinary & beauty care services

Other Marks by Chet Olsen

Resources

Company