Patent Assignment
Reel/Frame 043953/0226
Assignment of Assignor's Interest
Recorded: 2017-10-26
Pages: 3
Assignor
ZHAO, CHUN-TIAN
Executed: 2015-06-17
Assignee
JOHNSON MATTHEY PUBLIC LIMITED COMPANY
5TH FLOOR, 25 FARRINGDON STREET, LONDON, EC4A 4AB, GREAT BRITAIN
Covered Property
(1)
Oil Field Chemical Delivery Fluids, Methods for Their Use in the Targeted Delivery of Oil Field Chemicals to Subterranean Hydrocarbon Reservoirs and Methods for Tracing Fluid Flow
Related Assignments
(1)
Other recorded transfers of the patent in this record — the chain of ownership.