Patent Assignment
Reel/Frame 025820/0252
Assignment of Assignor's Interest
Recorded: 2011-02-16
Pages: 7
Assignors
AREND, MICHAEL P.
Executed: 2004-06-03
FLIPPIN, LEE A.
Executed: 2004-06-03
GUENZLER-PUKALL, VOLKMAR
Executed: 2004-06-03
HO, WEN-BEN
Executed: 2004-06-03
TURTLE, ERIC D.
Executed: 2004-06-03
DU, XIAOHUI
Executed: 2004-06-03
Assignee
FIBROGEN, INC.
225 GATEWAY BOULEVARD, SOUTH SAN FRANCISCO, CALIFORNIA, 94080
Covered Property
(1)
Novel Nitrogen-Containing Heteroaryl Compounds and Methods of Use Thereof
Related Assignments
(4)
Other recorded transfers of the patent in this record — the chain of ownership.
Corrective Assignment to Correct the Correct the Spelling of an Assignor's Name Previously Recorded on Reel 025820 Frame 0252. Assignor(S) Hereby Confirms the Correct the Spelling of an Assignor's Name.
Jun 28, 2011
From: AREND, MICHAEL P.; FLIPPIN, LEE A.; GUENZLER-PUKALL, VOLKMAR; HO, WEN-BIN
To: FIBROGEN, INC.
Reel/Frame 026513/0446 →
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 →