ASCK
ASSIGNMENT OF OWNERSHIP NOT UPDATED AUTOMATICALLY
02/18/2026
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Official data from USPTO
DEMSER
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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
45
Latest update
02/19/2026
Trademark type
Word
Nice classes
5
Filing date
12/31/1975
Registration date
10/26/1976
Expiration date
-
Complete case details
Structured fields from the responsible authority and the official record.
Status date
10/21/2016
Last transaction
02/19/2026
Responsible office
United States Patent and Trademark Office
Status code
800
Official register
Principal Register
First use anywhere
12/05/1975
First use in commerce
12/05/1975
Drawing code
1
Owner type
11
Owner location
DUBLIN, IE
Current location
GENERIC WEB UPDATE
Holders and representatives
Holders
BAUSCH HEALTH IRELAND LIMITED
ATON PHARMA, INC.
MERCK & CO., INC.
Representatives
Jeremy Blackowicz Bausch Health Companies
Technical classification
Nice Classes
Class 5
Vienna Codes
No Vienna codes available.
Goods and services
Class 5
TYROSINE HYDROXYLASE INHIBITOR
Publications
History of USPTO decisions and trademark events.
45 publications found
ASCK
ASSIGNMENT OF OWNERSHIP NOT UPDATED AUTOMATICALLY
02/11/2026
REM2
COURTESY REMINDER - SEC. 8 (10-YR)/SEC. 9 E-MAILED
10/26/2025
ASCK
ASSIGNMENT OF OWNERSHIP NOT UPDATED AUTOMATICALLY
04/16/2025
ASCK
ASSIGNMENT OF OWNERSHIP NOT UPDATED AUTOMATICALLY
02/08/2023
ASCK
ASSIGNMENT OF OWNERSHIP NOT UPDATED AUTOMATICALLY
01/18/2023
ASCK
ASSIGNMENT OF OWNERSHIP NOT UPDATED AUTOMATICALLY
12/28/2022
ASCK
ASSIGNMENT OF OWNERSHIP NOT UPDATED AUTOMATICALLY
12/14/2022
TCCA
TEAS CHANGE OF CORRESPONDENCE RECEIVED
08/22/2022
ARAA
ATTORNEY/DOM.REP.REVOKED AND/OR APPOINTED
08/22/2022
REAP
TEAS REVOKE/APP/CHANGE ADDR OF ATTY/DOM REP RECEIVED
08/22/2022
ASCK
ASSIGNMENT OF OWNERSHIP NOT UPDATED AUTOMATICALLY
11/25/2020
CHAN
APPLICANT/CORRESPONDENCE CHANGES (NON-RESPONSIVE) ENTERED
05/03/2020
TCCA
TEAS CHANGE OF CORRESPONDENCE RECEIVED
05/03/2020
ARAA
ATTORNEY/DOM.REP.REVOKED AND/OR APPOINTED
05/03/2020
REAP
TEAS REVOKE/APP/CHANGE ADDR OF ATTY/DOM REP RECEIVED
05/03/2020
COAR
TEAS CHANGE OF OWNER ADDRESS RECEIVED
05/03/2020
ASGN
AUTOMATIC UPDATE OF ASSIGNMENT OF OWNERSHIP
11/27/2019
NA89
NOTICE OF ACCEPTANCE OF SEC. 8 & 9 - E-MAILED
10/21/2016
RNL3
REGISTERED AND RENEWED (THIRD RENEWAL - 10 YRS)
10/21/2016
89AG
REGISTERED - SEC. 8 (10-YR) ACCEPTED/SEC. 9 GRANTED
10/21/2016
E89R
TEAS SECTION 8 & 9 RECEIVED
10/19/2016
TCCA
TEAS CHANGE OF CORRESPONDENCE RECEIVED
10/19/2016
REM2
COURTESY REMINDER - SEC. 8 (10-YR)/SEC. 9 E-MAILED
10/26/2015
ASCK
ASSIGNMENT OF OWNERSHIP NOT UPDATED AUTOMATICALLY
01/21/2015
ASCK
ASSIGNMENT OF OWNERSHIP NOT UPDATED AUTOMATICALLY
03/23/2011
ARAA
ATTORNEY/DOM.REP.REVOKED AND/OR APPOINTED
10/19/2010
REAP
TEAS REVOKE/APP/CHANGE ADDR OF ATTY/DOM REP RECEIVED
10/19/2010
CFIT
CASE FILE IN TICRS
11/06/2007
CHAN
APPLICANT/CORRESPONDENCE CHANGES (NON-RESPONSIVE) ENTERED
03/26/2007
COAR
TEAS CHANGE OF OWNER ADDRESS RECEIVED
03/26/2007
TCCA
TEAS CHANGE OF CORRESPONDENCE RECEIVED
03/26/2007
ARAA
ATTORNEY/DOM.REP.REVOKED AND/OR APPOINTED
03/23/2007
REAP
TEAS REVOKE/APP/CHANGE ADDR OF ATTY/DOM REP RECEIVED
03/23/2007
ASGN
AUTOMATIC UPDATE OF ASSIGNMENT OF OWNERSHIP
09/06/2006
RNL2
REGISTERED AND RENEWED (SECOND RENEWAL - 10 YRS)
03/17/2006
89AG
REGISTERED - SEC. 8 (10-YR) ACCEPTED/SEC. 9 GRANTED
03/17/2006
PLGL
ASSIGNED TO PARALEGAL
03/17/2006
89AF
REGISTERED - COMBINED SECTION 8 (10-YR) & SEC. 9 FILED
11/15/2005
E89R
TEAS SECTION 8 & 9 RECEIVED
11/15/2005
RNL1
REGISTERED AND RENEWED (FIRST RENEWAL - 10 YRS)
12/01/1996
9.AF
REGISTERED - SEC. 9 FILED/CHECK RECORD FOR SEC. 8
10/15/1996
15AK
REGISTERED - SEC. 15 ACKNOWLEDGED
01/02/1987
15AF
REGISTERED - SEC. 15 AFFIDAVIT FILED
09/02/1986
8.OK
REGISTERED - SEC. 8 (6-YR) ACCEPTED
01/25/1982
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