IP Library › Assignment 022754/0602
Patent Assignment
Reel/Frame 022754/0602

Assignment of Assignor's Interest

Recorded: 2009-05-29 Pages: 3
Assignors
LIU, CHANGSHENG
Executed: 2009-03-13
YUAN, YUAN
Executed: 2009-03-13
Assignee
EAST CHINA UNIVERSITY OF SCIENCE AND TECHNOLOGY
130 MEILONG ROAD, SHANGHAI, 200237, CHINA
Covered Property (1)
Nanometer Mesoporous Silica-Based Xerogel Styptic Material and Its Preparing Process and Application
Patent: 8,703,208 →
Application: 12/403,904 →
Publication: US 2009/0232902
Related Assignments (3)
Other recorded transfers of the patent in this record — the chain of ownership.
Assignment of Assignor's Interest Oct 27, 2020
From: EAST CHINA UNIVERSITY OF SCIENCE AND TECHNOLOGY
To: SHANGHAI YANKAI BIOTECH CENTER
Reel/Frame 054182/0104 →
Assignment of Assignor's Interest Jan 21, 2021
From: SHANGHAI YANKAI BIOTECH CENTER
To: SUZHOU BAIJI BIOTECH CO., LTD.
Reel/Frame 054990/0961 →
Assignment of Assignor's Interest Nov 18, 2024
From: SUZHOU BAIJI BIOTECH CO., LTD.
To: YIXIN BIO-TECH (GUANGZHOU) CO.,LTD
Reel/Frame 069382/0844 →