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Granted Patent
Utility
US 7,238,231
· Confirmation No. 4131
PROCESS FOR MANUFACTURING ZIRCONIA-TREATED TITANIUM DIOXIDE PIGMENTS
Patented Case
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Inventors
Attorneys & Agents of Record
Classification
USPC
106/417
C09C1/3661
C01G23/07
C01P2004/84
C09C1/3623
C09C1/363
C09C1/3692
Prosecution
- Examiner
- GREEN, ANTHONY J
- Art Unit
- 1755
- Docket No.
- 2113
- Confirmation No.
- 4131
Patent Term Adjustment
0days
from
TRONOX LLC
SECURITY INTEREST
Recorded 2025-09-26
RELEASE OF SECURITY INTEREST
Recorded 2022-04-07
ASSIGNMENT OF SECURITY INTEREST IN PATENT COLLATERAL RECORDED AT REEL/FRAME 044100/0339
Recorded 2021-03-12
RELEASE OF SECURITY INTEREST
Recorded 2021-03-12
from
TRONOX LLC
SECURITY INTEREST
Recorded 2020-05-01
from
TRONOX LLC
PATENT SECURITY AGREEMENT
Recorded 2017-10-02
RELEASE OF SECURITY INTEREST IN INTELLECTUAL PROPERTY COLLATERAL AT REEL/FRAME NOS. 027682/0086 AND 030047/0422
Recorded 2017-09-26
RELEASE OF SECURITY INTEREST IN PATENTS
Recorded 2017-09-25
PATENT SECURITY AGREEMENT
Recorded 2012-07-18
RELEASE OF SECURITY INTEREST IN PATENTS
Recorded 2012-07-12
BANKRUPTCY COURT NOTICE CONFIRMING RELEASE OF LIENS EFFECTIVE 2/14/2011
Recorded 2011-03-24
SECURITY AGREEMENT
Recorded 2011-02-22
from
TRONOX LLC
SECURITY AGREEMENT
Recorded 2011-02-15
SECURITY AGREEMENT
Recorded 2008-08-21
ASSIGNMENT OF ASSIGNOR'S INTEREST
Recorded 2006-11-16
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Quick Facts
- Patent No.
- US 7,238,231
- App. No.
- 11/600,643
- Filed
- 2006-11-16
- Granted
- 2007-07-03
- Examiner
- GREEN, ANTHONY J
- Art Unit
- 1755
- PTA
- 0 days
External Links