Patent Assignment
Reel/Frame 057818/0874
Assignment of Assignor's Interest
Recorded: 2021-10-18
Pages: 2
Assignor
QIU, BIYONG
Executed: 2020-10-28
Assignee
3M INNOVATIVE PROPERTIES COMPANY
P.O. BOX 33427, ST. PAUL, MINNESOTA, 55133-3427
Covered Property
(1)
Filter Element and Filter Having the Filter Element
Related Assignments
(1)
Other recorded transfers of the patent in this record — the chain of ownership.