IP Library › Assignment 012121/0266
Patent Assignment
Reel/Frame 012121/0266

Assignment of Assignor's Interest

Recorded: 2001-08-24 Pages: 2
Assignor
HALLMAN, JOHN H.
Executed: 2001-08-24
Assignee
CLEARWATER, INC.
5605 GRAND AVENUE, PITTSBURGH, PENNSYLVANIA, 15225
Covered Property (1)
Gas Dehydration with Cavitation Regeneration of Potassium Formate Dehydrating Solution
Patent: 6,896,718 →
Application: 09/938,935 →
Publication: US 2002/0056828
Related Assignments (2)
Other recorded transfers of the patent in this record — the chain of ownership.
Assignment of Assignor's Interest Nov 6, 2002
From: CLEARWATER, INC.
To: CLEARWATER INTERNATIONAL, L.L.C.
Reel/Frame 013463/0170 →
Assignment of Assignor's Interest Oct 9, 2015
From: CLEARWATER INTERNATIONAL, L.L.C.
To: LUBRIZOL OILFIELD SOLUTIONS, INC.
Reel/Frame 036822/0379 →