Degradable ball sealers and methods for use in well treatment
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
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Jan 19, 2010
Issued Date -
N/A
app pub date -
Dec 18, 2006
filing date -
Dec 19, 2005
priority date (Note) -
In Force
status (Latency Note)
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Abstract
Described is an oil-degradable ball sealer for use in the oil and gas industry. The ball seal comprises a particular composition including ethylene and one or more alpha-olefins, prepared by an injection molding technique to provide a ball sealer which will dissolve in stimulation or wellbore fluids after stimulation operations are complete. The composition, when dissolved into wellbore fluids, does not pose a hazard or problem to aqueous wellbore fluids or further wellbore stimulations.
First Claim
all claims..Other Claims data not available
Family

- 15 United States
- 10 France
- 8 Japan
- 7 China
- 5 Korea
- 2 Other
Patent Owner(s)
Patent Owner | Address | |
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COVIA SOLUTIONS INC | 3 SUMMIT PARK DRIVE INDEPENDENCE OH 44131 |
International Classification(s)
Inventor(s)
Inventor Name | Address | # of filed Patents | Total Citations |
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Akbar, Syed | Houston, US | 16 | 1106 |
# of filed Patents : 16 Total Citations : 1106 | |||
Okell, Patrick R | Bellaire, US | 8 | 1098 |
# of filed Patents : 8 Total Citations : 1098 | |||
Sinclair, A Richard | Houston, US | 21 | 2539 |
# of filed Patents : 21 Total Citations : 2539 |
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Patent Citation Ranking
- 85 Citation Count
- E21B Class
- 94.23 % this patent is cited more than
- 15 Age
Forward Cite Landscape
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Maintenance Fees
Fee | Large entity fee | small entity fee | micro entity fee | due date |
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Fee | Large entity fee | small entity fee | micro entity fee |
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Surcharge after expiration - Late payment is unavoidable | $700.00 | $350.00 | $175.00 |
Surcharge after expiration - Late payment is unintentional | $1,640.00 | $820.00 | $410.00 |
Full Text

Legal Events
Date | Code | Event | Description |
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Nov 01, 2006 | STCH | INFORMATION ON STATUS: PATENT DISCONTINUATION | free format text: PATENT EXPIRED DUE TO NONPAYMENT OF MAINTENANCE FEES UNDER 37 CFR 1.362 |
Oct 04, 2006 | FP | LAPSED DUE TO FAILURE TO PAY MAINTENANCE FEE | Effective Date: Oct 04, 2006 |
Oct 04, 2006 | LAPS | LAPSE FOR FAILURE TO PAY MAINTENANCE FEES | |
Apr 19, 2006 | REMI | MAINTENANCE FEE REMINDER MAILED | |
Mar 14, 2002 | FPAY | FEE PAYMENT | year of fee payment: 8 |
Mar 06, 1998 | FPAY | FEE PAYMENT | year of fee payment: 4 |
Dec 07, 1996 | FEPP | FEE PAYMENT PROCEDURE | free format text: PAYOR NUMBER ASSIGNED (ORIGINAL EVENT CODE: ASPN); ENTITY STATUS OF PATENT OWNER: LARGE ENTITY |
Oct 04, 1994 | I | Issuance | |
Mar 29, 1993 | F | Filing | |
Aug 10, 1990 | PD | Priority Date |

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