IP Library › Assignment 025325/0516
Patent Assignment
Reel/Frame 025325/0516

Assignment of Assignor's Interest

Recorded: 2010-11-05 Pages: 3
Assignor
REY, SUSAN
Executed: 2010-10-11
Assignee
THE NATIONAL COLLOID COMPANY
906 ADAM STREET, STEUBENVILLE, OHIO, 43952
Covered Property (1)
Methods of Treating Flowback Water
Patent: 8,871,691 →
Application: 12/794,550 →
Publication: US 2010/0307753
Related Assignments (3)
Other recorded transfers of the patent in this record — the chain of ownership.
Assignment of Assignor's Interest Sep 8, 2010
From: THE NATIONAL COLLOID COMPANY
To: KROFF CHEMICAL COMPANY
Reel/Frame 024950/0414 →
Assignment of Assignor's Interest Nov 19, 2010
From: REY, PAUL
To: KROFF CHEMICAL COMPANY
Reel/Frame 025408/0692 →
Assignment of Assignor's Interest Dec 16, 2011
From: GROTTENTHALER, DAVID A.
To: KROFF CHEMICAL COMPANY
Reel/Frame 027402/0926 →