Patent Assignment
Reel/Frame 034575/0655
Assignment of Assignor's Interest
Recorded: 2014-12-23
Pages: 5
Assignors
HUANG, TAO
Executed: 2014-11-05
LIM, HYUN SUNG
Executed: 2014-11-05
YUNG, WAI-SHING
Executed: 2014-11-09
Assignee
E I DU PONT DE NEMOURS AND COMPANY
974 CENTRE ROAD, CHESTNUT RUN PLAZA 721/2340, WILMINGTON, DELAWARE, 19805
Covered Property
(1)
Electret Nanofibrous Web as Air Filtration Media
Related Assignments
(2)
Other recorded transfers of the patent in this record — the chain of ownership.
Assignment of Assignor's Interest
Dec 31, 2014
From: HUANG, TAO; LIM, HYUN SUNG; YUNG, WAI-SHING
To: E. I. DU PONT DE NEMOURS AND COMPANY
Reel/Frame 034605/0528 →
Assignment of Assignor's Interest
Jun 25, 2019
From: E. I. DU PONT DE NEMOURS AND COMPANY
To: DUPONT SAFETY & CONSTRUCTION, INC.
Reel/Frame 051180/0648 →