IP Library › Assignment 034816/0235
Patent Assignment
Reel/Frame 034816/0235

Assignment of Assignor's Interest

Recorded: 2015-01-26 Pages: 3
Assignors
ZAZULA, RENNIE K.
Executed: 2015-01-20
BIRD, DEAN M.
Executed: 2015-01-20
CROSSWHITE, DONALD T.
Executed: 2015-01-20
Assignee
NATIONAL OILWELL VARCO CANADA ULC
6621 45TH STREET, LEDUC, ALBERTA, T9E 7E3, CANADA
Covered Property (1)
System, Apparatus, and Method for Recovering Barite from Drilling Fluid
Application: 14/583,536 →
Publication: US 2016/0184741
Related Assignments (1)
Other recorded transfers of the patent in this record — the chain of ownership.
Corrective Assignment to Correct the Assignee Previously Recorded on Reel 034816 Frame 0235. Assignor(S) Hereby Confirms the Assignee Change. Nov 17, 2020
From: ZAZULA, RENNIE K.; BIRD, DEAN M.; CROSSWHITE, DONALD T.
To: VARCO CANADA ULC
Reel/Frame 054451/0035 →