IP Library › Assignment 025689/0382
Patent Assignment
Reel/Frame 025689/0382

Assignment of Assignor's Interest

Recorded: 2011-01-21 Pages: 4
Assignors
NYAMEKYE, GEORGE ASANTE
Executed: 2008-01-18
LEVAY, JOSEPH
Executed: 2008-01-04
ROULSTON, JOHN S.
Executed: 2008-02-18
MENEAR, JOHN
Executed: 2008-03-21
Assignee
WORLD MINERALS, INC.
130 CASTILIAN DRIVE, SANTA BARBARA, CALIFORNIA, 93117
Covered Property (1)
Filter Aids Made from Low Permeability Diatomites
Patent: 8,410,017 →
Application: 12/743,830 →
Publication: US 2010/0248953
Related Assignments (2)
Other recorded transfers of the patent in this record — the chain of ownership.
Assignment of Assignor's Interest Jul 31, 2012
From: WORLD MINERALS INC.
To: IMERYS FILTRATION MINERALS, INC.
Reel/Frame 028685/0853 →
Assignment of Assignor's Interest Feb 15, 2019
From: IMERYS FILTRATION MINERALS, INC.
To: IMERYS USA, INC.
Reel/Frame 048344/0707 →