Patent Assignment
Reel/Frame 049211/0196
Assignment of Assignor's Interest
Recorded: 2019-05-17
Pages: 9
Assignors
CONCA, DAVID
Executed: 2016-03-03
FLIPPIN, LEE ALLEN
Executed: 2016-03-02
LEIGH, SCOTT DAVID
Executed: 2016-03-02
WITSCHI, CLAUDIA
Executed: 2016-03-07
WRIGHT, LEE ROBERT
Executed: 2016-03-02
Assignee
FIBROGEN, INC.
409 ILLINOIS STREET, SAN FRANCISCO, CALIFORNIA, 94158
Covered Property
(1)
Pharmaceutical Formulations of a Hif Hydroxylase Inhibitor
Related Assignments
(3)
Other recorded transfers of the patent in this record — the chain of ownership.
Security Interest
May 1, 2023
From: FIBROGEN, INC.
To: WILMINGTON TRUST, NATIONAL ASSOCIATION
Reel/Frame 063504/0221 →
Release of Security Interest
Sep 3, 2025
From: WILMINGTON TRUST, NATIONAL ASSOCIATION, AS AGENT
To: FIBROGEN, INC.
Reel/Frame 072785/0760 →
Change of Name
Feb 18, 2026
From: FIBROGEN, INC.
To: KYNTRA BIO, INC.
Reel/Frame 074923/0352 →