Patent Assignment
Reel/Frame 026473/0437
Assignment of Assignor's Interest
Recorded: 2011-06-21
Pages: 6
Assignor
SUN, YIFENG
Executed: 2010-09-20
Assignee
TONGJI UNIVERSITY
NO. 1239 SIPING ROAD, SHANGHAI, 200092, CHINA
Covered Property
(1)
Ostomy System
Application:
13/141,242 →
Publication:
US 2012/0203175
Related Assignments
(3)
Other recorded transfers of the patent in this record — the chain of ownership.
Security Interest
Jan 29, 2019
From: EMPIRE TECHNOLOGY DEVELOPMENT LLC
To: CRESTLINE DIRECT FINANCE, L.P.
Reel/Frame 048373/0217 →
Release of Security Interest
Jul 31, 2019
From: CRESTLINE DIRECT FINANCE, L.P.
To: EMPIRE TECHNOLOGY DEVELOPMENT LLC
Reel/Frame 049924/0794 →
Release of Security Interest in Patents, Recorded on January 29, 2019 at Reel 048373 Frame 0217
Sep 22, 2025
From: CRESTLINE DIRECT FINANCE, L.P., AS COLLATERAL AGENT
To: EMPIRE TECHNOLOGY DEVELOPMENT LLC
Reel/Frame 072936/0464 →