IP Library Assignment 047830/0327
Patent Assignment
Reel/Frame 047830/0327

Assignment of Assignor's Interest

Recorded: 2018-12-20 Pages: 4
Assignor
HALLIBURTON ENERGY SERVICES, INC.
Executed: 2018-10-31
Assignee
LANDMARK GRAPHICS CORPORATION
3000 N. SAM HOUSTON PARKWAY E., HOUSTON, TEXAS, 77032
Covered Property (1)
Method and Device for Hole Cleaning and Drilling Hydraulic Design
Application: 16/091,036 →
Publication: US 2019/0120002
Related Assignments (2)
Other recorded transfers of the patent in this record — the chain of ownership.
Assignment of Assignor's Interest Oct 5, 2018
From: ZHANG, FEIFEI; FILIPPOV, ANDREY; LU, JIANXIN
To: HALLIBURTON ENERGY SERVICES, INC.
Reel/Frame 047082/0386 →
Assignment of Assignor's Interest Apr 16, 2020
From: LANDMARK GRAPHICS CORPORATION
To: HALLIBURTON ENERGY SERVICES, INC.
Reel/Frame 052418/0722 →