IP Library › Granted Patent US 6,953,089
Granted Patent B2
US 6,953,089 · App. 10/939,924 · Granted Oct 11, 2005

Apparatus and method of detecting interfaces between well fluids

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Quick Facts
Patent No.
US 6,953,089
App. No.
10/939,924
Granted
Oct 11, 2005
Kind
B2
Assignments (8)
CHANGE OF NAME Recorded Jun 23, 2022
From: BJ SERVICES COMPANY
To: WESTERN ATLAS HOLDINGS LLC
Reel/Frame 060292/0892 →
MERGER Recorded Apr 18, 2017
From: BJ SERVICES COMPANY LLC
To: WESTERN ATLAS INC.
Reel/Frame 042046/0262 →
MERGER Recorded Apr 18, 2017
From: BJ SERVICES COMPANY
To: BSA ACQUISITION LLC
Reel/Frame 042045/0008 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Apr 18, 2017
From: WESTERN ATLAS INC.
To: BJ SERVICES, LLC
Reel/Frame 042046/0447 →
MERGER Recorded Apr 18, 2017
From: BSA ACQUISITION LLC
To: BJ SERVICES COMPANY LLC
Reel/Frame 042280/0094 →
CORRECTIVE ASSIGNMENT TO CORRECT THE ADDRESS OF ASSIGNEE BJ SERVICES, LLC PREVIOUSLY RECORDED ON REEL 040804 FRAME 0552. ASSIGNOR(S) HEREBY CONFIRMS THE PATENT ASSIGNMENT AGREEMENT.. Recorded Jan 18, 2017
From: BAKER HUGHES INCORPORATED; BAKER HUGHES OILFIELD OPERATIONS, INC.
To: BJ SERVICES, LLC
Reel/Frame 041391/0934 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Dec 29, 2016
From: BAKER HUGHES INCORPORATED; BAKER HUGHES OILFIELD OPERATIONS, INC.
To: BJ SERVICES, LLC
Reel/Frame 040804/0552 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Feb 10, 2005
From: DILLENBECK, ROBERT LEE; CARLSON, BRADLEY T.
To: BJ SERVICES COMPANY
Reel/Frame 015698/0508 →