Patent Assignment
Reel/Frame 031654/0039
Assignment of Assignor's Interest
Recorded: 2013-11-21
Pages: 6
Assignors
HUANG, MIANYAN
Executed: 2010-06-23
ZHAO, YANLING
Executed: 2010-06-23
LI, LINLIN
Executed: 2010-06-23
Assignee
BEIJING PRUDENT CENTURY TECHNOLOGY CO., LTD.
B-102, XUEYAN BUILDING, TSINGHUA UNIVERSITY, HAIDIAN DISTRICT, BEIJING, 100084, CHINA
Covered Property
(1)
Polymer Blend Proton Exchange Membrane and Method for Manufacturing the Same
Related Assignments
(4)
Other recorded transfers of the patent in this record — the chain of ownership.
Change of Name
Nov 21, 2013
From: BEIJING PRUDENT CENTURY TECHNOLOGY CO., LTD.
To: PRUDENT ENERGY INC.
Reel/Frame 031694/0445 →
Assignment of Assignor's Interest
Dec 15, 2017
From: PRUDENT ENERGY, INC.
To: BEIJING PU NENG CENTURY SCI. & TECH. CO. LTD.
Reel/Frame 044408/0046 →
Change of Name
Aug 22, 2018
From: JD HOLDING INC.
To: VRB ENERGY INC.
Reel/Frame 046913/0407 →
Assignment of Assignor's Interest
Oct 10, 2024
From: BEIJING PU NENG CENTURY SCI. & TECH. CO., LTD.
To: VRB ENERGY INC.
Reel/Frame 068868/0800 →