IP Library › Assignment 058239/0676
Patent Assignment
Reel/Frame 058239/0676

Assignment of Assignor's Interest

Recorded: 2021-11-30 Pages: 7
Assignors
DONALD, SEAN MATTHEW
Executed: 2016-12-21
SCOTT, ANDREW LAWRENCE
Executed: 2016-12-21
YANG, YONG
Executed: 2016-12-21
KVASNYTSIA, ROMAN
Executed: 2016-12-21
Assignee
NATIONAL OILWELL VARCO, L.P.
7909 PARKWOOD CIRCLE DRIVE, HOUSTON, TEXAS, 77036
Covered Property (1)
Methods for Increasing the Amplitude of Reciprocal Extensions and Contractions of a Shock Tool for Drilling Operations
Application: 17/537,743 →
Publication: US 2022/0090449
Related Assignments (2)
Other recorded transfers of the patent in this record — the chain of ownership.
Assignment of Assignor's Interest Nov 30, 2021
From: NATIONAL OILWELL VARCO, L.P.
To: NATIONAL OILWELL DHT, L.P.
Reel/Frame 058239/0731 →
Change of Name Jun 22, 2023
From: NATIONAL OILWELL DHT, L.P.
To: NATIONAL OILWELL VARCO, L.P.
Reel/Frame 064057/0370 →