INTR
TOTAL INVALIDATION OF REG EXT PROTECTION CREATED
03/18/2026
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Official data from USPTO
HYDRO-CHEM
Did you know this trademark is already registered in United States?
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Active USPTO registrationType: WordOffice: United States
Risk and opportunity diagnosis
Executive reading for naming, filing, and monitoring decisions.
USPTO status
Active USPTO registration
Case type
Application and registration
Recorded events
35
Latest update
03/19/2026
Trademark type
Word
Nice classes
11
Filing date
12/05/2017
Registration date
01/01/2019
Expiration date
-
Complete case details
Structured fields from the responsible authority and the official record.
Status date
07/18/2025
Last transaction
03/19/2026
Responsible office
United States Patent and Trademark Office
Status code
709
Official register
Principal Register
Drawing code
4
Owner type
27
Owner location
DE
Examiner
COHEN, ROBERT ANDREW
Law office
L30
Current location
PUBLICATION AND ISSUE SECTION
Holders and representatives
Holders
Linde GmbH
L. A. (pessoa física)
Representatives
Mari-Elise Paul Stites & Harbison PLLC
Technical classification
Nice Classes
Class 11
Vienna Codes
No Vienna codes available.
Goods and services
Class 11
Electrochemical gas generators for industrial utility gasesin particular hydrogen and oxygen; thermochemical synthetic gas generators; steam reformers for use in generating hydrogen; hydrogen gas generators; hydrogen-generation equipment and componentshydrogen gas purifiershydrogen gas separating apparatushydrogen gas scrubbershydrogen absorbers and absorber installations; apparatus for the separation and purifying of industrial gases and natural gasesin particularprocess gasesnatural gasrefinery gases
Publications
History of USPTO decisions and trademark events.
35 publications found
C71T
CANCELLED SECTION 71
07/18/2025
ADCH
CHANGE OF NAME/ADDRESS REC'D FROM IB
03/13/2025
EWAF
TEAS WITHDRAWAL OF ATTORNEY RECEIVED-FIRM RETAINS
02/21/2024
TCCA
TEAS CHANGE OF CORRESPONDENCE RECEIVED
02/21/2024
ARAA
ATTORNEY/DOM.REP.REVOKED AND/OR APPOINTED
02/21/2024
REAP
TEAS REVOKE/APP/CHANGE ADDR OF ATTY/DOM REP RECEIVED
02/21/2024
REM3
COURTESY REMINDER - SEC. 71 (6-YR) E-MAILED
01/01/2024
ADCH
CHANGE OF NAME/ADDRESS REC'D FROM IB
03/12/2021
FINO
FINAL DECISION TRANSACTION PROCESSED BY IB
05/10/2019
FICS
FINAL DISPOSITION NOTICE SENT TO IB
04/23/2019
FIMP
FINAL DISPOSITION PROCESSED
04/23/2019
FICR
FINAL DISPOSITION NOTICE CREATED, TO BE SENT TO IB
04/01/2019
R.PR
REGISTERED-PRINCIPAL REGISTER
01/01/2019
NPUB
OFFICIAL GAZETTE PUBLICATION CONFIRMATION E-MAILED
10/16/2018
PUBO
PUBLISHED FOR OPPOSITION
10/16/2018
GPNX
NOTIFICATION PROCESSED BY IB
10/12/2018
OPNS
NOTIFICATION OF POSSIBLE OPPOSITION SENT TO IB
09/26/2018
NONP
NOTIFICATION OF NOTICE OF PUBLICATION E-MAILED
09/26/2018
OP2R
NOTICE OF START OF OPPOSITION PERIOD CREATED, TO BE SENT TO IB
09/26/2018
CNSA
APPROVED FOR PUB - PRINCIPAL REGISTER
09/07/2018
TEME
TEAS/EMAIL CORRESPONDENCE ENTERED
09/06/2018
CRFA
CORRESPONDENCE RECEIVED IN LAW OFFICE
09/06/2018
ALIE
ASSIGNED TO LIE
09/05/2018
TROA
TEAS RESPONSE TO OFFICE ACTION RECEIVED
08/20/2018
RFNT
REFUSAL PROCESSED BY IB
06/02/2018
RFCS
NON-FINAL ACTION MAILED - REFUSAL SENT TO IB
05/14/2018
RFRR
REFUSAL PROCESSED BY MPU
05/14/2018
RFCR
NON-FINAL ACTION (IB REFUSAL) PREPARED FOR REVIEW
05/10/2018
CNRT
NON-FINAL ACTION WRITTEN
05/09/2018
MAFR
APPLICATION FILING RECEIPT MAILED
05/04/2018
DOCK
ASSIGNED TO EXAMINER
04/30/2018
NWOS
NEW APPLICATION OFFICE SUPPLIED DATA ENTERED
04/30/2018
LIMI
LIMITATION FROM ORIGINAL APPLICATION ENTERED
04/27/2018
REPR
SN ASSIGNED FOR SECT 66A APPL FROM IB
04/26/2018
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