Patent Assignment
Reel/Frame 049275/0134
Assignment of Assignor's Interest
Recorded: 2019-05-24
Pages: 4
Assignor
NATIONAL OILWELL VARCO, L.P.
Executed: 2018-02-01
Assignee
NATIONAL OILWELL DHT, L.P.
500 CONROE PARK WEST DRIVE, CONROE, TEXAS, 77303
Covered Properties
(2)
Drilling Oscillation Systems and Shock Tools for Same
Patent:
11,220,866 →
Application:
15/849,471 →
Publication:
US 2018/0171719
PCT:
PCT/US2017/067734 ↗
High Energy Agitator Systems
Application:
62/436,955 →
Related Assignments
(3)
Other recorded transfers of the patents in this record — the chain of ownership.
Assignment of Assignor's Interest
Feb 1, 2017
From: DONALD, SEAN MATTHEW; SCOTT, ANDREW LAWRENCE; YANG, YONG; KVASNYTSIA, ROMAN
To: NATIONAL OILWELL VARCO, L.P.
Reel/Frame 041143/0118 →
Assignment of Assignor's Interest
May 24, 2019
From: DONALD, SEAN MATTHEW; SCOTT, ANDREW LAWRENCE; YANG, YONG; KVASNYTSIA, ROMAN
To: NATIONAL OILWELL VARCO, L.P.
Reel/Frame 049275/0037 →
Change of Name
Jun 22, 2023
From: NATIONAL OILWELL DHT, L.P.
To: NATIONAL OILWELL VARCO, L.P.
Reel/Frame 064057/0370 →