Patent Assignment
Reel/Frame 042142/0149
Assignment of Assignor's Interest
Recorded: 2017-04-25
Pages: 10
Assignors
COUGHLIN, DANIEL
Executed: 2016-12-20
GOU, DA-MING
Executed: 2016-12-22
HEINRICH, BRIAN
Executed: 2016-12-22
MIRMEHRABI, MAHMOUD
Executed: 2017-01-02
PAUL, BERNHARD
Executed: 2017-01-10
Assignee
JOHNSON MATTHEY PUBLIC LIMITED COMPANY
5TH FLOOR, 25 FARRINGDON STREET, LONDON, EC4A4AB, UNITED KINGDOM
Covered Property
(1)
Pharmaceutically Acceptable Salts and Polymorphic Forms of Hydrocodone Benzoic Acid Enol Ester and Processes for Making Same
Related Assignments
(5)
Other recorded transfers of the patent in this record — the chain of ownership.
Assignment of Assignor's Interest
Apr 25, 2017
From: JOHNSON MATTHEY PUBLIC LIMITED COMPANY
To: KEMPHARM, INC.
Reel/Frame 042142/0495 →
Assignment of Assignor's Interest
Nov 7, 2022
From: JOHNSON MATTHEY PUBLIC LIMITED COMPANY
To: MACFARLAN SMITH LIMITED
Reel/Frame 061888/0166 →
Change of Name
Feb 23, 2024
From: KEMPHARM, INC.
To: ZEVRA THERAPEUTICS, INC.
Reel/Frame 066664/0108 →
Security Interest
Apr 8, 2024
From: ZEVRA THERAPEUTICS, INC.
To: ALTER DOMUS (US) LLC
Reel/Frame 067040/0637 →
Release of Security Interest
Mar 13, 2026
From: ALTER DOMUS (US) LLC
To: ZEVRA THERAPEUTICS, INC.
Reel/Frame 075080/0907 →