Granted Patent
Utility
US 6,590,050
· Confirmation No. 5966
POLYMERIC FLUID LOSS ADDITIVES AND METHOD OF USE THEREOF
Patented Case
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Code | Description | Pages | ||
|---|---|---|---|---|---|
| 2014-04-25 | EBCC.AD |
Notice of Change of Address Place in File Wrapper Due to Electronic Business Center(EBC) Customer Number Update | 1 | View | |
| 2002-08-20 | TRNA |
Transmittal of New Application | 5 | View | |
| 2002-08-20 | A.PE |
Preliminary Amendment | 21 | View | |
| 2002-08-20 | SPEC |
Specification | 31 | View | |
| 2002-08-20 | CLM |
Claims | 11 | View | |
| 2002-08-20 | ABST |
Abstract | 1 | View | |
| 2002-08-20 | OATH |
Oath or Declaration filed | 4 | View |
Inventors
Keith A. Bair
Landenberg, PA
Fu Chen
West Chester, PA
Mohand Melbouci
Wilmington, DE
Teng-Shau Young
Wilmington, DE
De-Kai Loo
Wilmington, DE
Attorneys & Agents of Record
Classification
USPC
526/240
C09K8/12
C04B24/163
C04B28/02
C08F220/54
C09K8/24
C09K8/46
C09K8/5083
C09K8/514
C04B24/38
Prosecution
- Examiner
- LIPMAN, BERNARD
- Art Unit
- 1713
- Customer No.
- 67749
- Docket No.
- 10072D
- Confirmation No.
- 5966
Patent Term Adjustment
0days
RELEASE OF SECURITY INTEREST
Recorded 2020-01-10
SECURITY AGREEMENT
Recorded 2017-07-03
ASHLAND LICENSING AND INTELLECTUAL PROPERTY LLC,
AQUALON COMPANY,
ISP INVESTMENTS INC.,
HERCULES INCORPORATED
RELEASE OF PATENT SECURITY AGREEMENT
Recorded 2013-03-18
from
AQUALON COMPANY,
ASHLAND LICENSING AND INTELLECTUAL PROPERTY LLC,
HERCULES INCORPORATED,
ISP INVESTMENT INC.
SECURITY AGREEMENT
Recorded 2011-09-16
ASHLAND, INC.,
ASHLAND LICENSING AND INTELLECTUAL PROPERTY LLC,
AQUALON COMPANY,
HERCULES INCORPORATED
RELEASE OF PATENT SECURITY AGREEMENT
Recorded 2011-09-15
SECURITY AGREEMENT
Recorded 2010-04-14
RELEASE OF SECURITY INTEREST
Recorded 2010-04-13
SECURITY AGREEMENT
Recorded 2008-12-03
PATENT TERMINATION CS-014683-0542
Recorded 2008-12-01
NOTICE OF GRANT OF SECURITY INTEREST
Recorded 2004-06-03
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Quick Facts
- Patent No.
- US 6,590,050
- App. No.
- 10/224,525
- Filed
- 2002-08-20
- Granted
- 2003-07-08
- Examiner
- LIPMAN, BERNARD
- Art Unit
- 1713
- PTA
- 0 days
External Links