Patent Assignment
Reel/Frame 038635/0688
Assignment of Assignor's Interest
Recorded: 2016-05-18
Pages: 6
Assignee
KUREHA CORPORATION
3-3-2, NIHONBASHI-HAMACHO, CHUO-KU, TOKYO, 103-8552, JAPAN
Covered Property
(1)
Diameter-Expandable Annular Degradable Seal Member for Downhole Tool, Plug for Well Drilling, and Method for Well Drilling