Normalization of sector amplitudes using monopole amplitudes
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Jul 25, 2017
Grant Date -
Feb 25, 2016
app pub date -
Aug 19, 2014
filing date -
Aug 19, 2014
priority date (Note) -
In Force
status (Latency Note)
![]() |
A preliminary load of PAIR data current through [] has been loaded. Any more recent PAIR data will be loaded within twenty-four hours. |
PAIR data current through []
A preliminary load of cached data will be loaded soon.
Any more recent PAIR data will be loaded within twenty-four hours.
![]() |
Next PAIR Update Scheduled on [ ] |

Importance

US Family Size
|
Non-US Coverage
|
Patent Longevity
|
Forward Citations
|
Abstract
A method and apparatus for normalizing an acoustic wellbore tool by correcting measured sector acoustic signals due to changes in pressure and temperature downhole, the method and apparatus comprising an acoustic wellbore tool having at least one monopole transmitter and monopole receiver, and one or more sector transmitters and receivers disposed along the longitudinal axis of the tool, determining the attenuation values of received monopole and sector acoustic signals, determining a correction ratio using an average sector attenuation value and a theoretical attenuation value, and correcting the sector acoustic signals using the correction ratio.
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 | |
---|---|---|
WELLS FARGO BANK NATIONAL ASSOCIATION | 1525 WEST W T HARRIS BLVD CHARLOTTE NC 28262 |
International Classification(s)
Inventor(s)
Inventor Name | Address | # of filed Patents | Total Citations |
---|---|---|---|
Blankinship, Thomas J | Fort Worth, US | 12 | 191 |
# of filed Patents : 12 Total Citations : 191 | |||
Caston, Gregory J | Fort Worth, US | 2 | 10 |
# of filed Patents : 2 Total Citations : 10 | |||
Schoch, Peter J | Benbrook, US | 5 | 36 |
# of filed Patents : 5 Total Citations : 36 | |||
Tello, Lucio N | Houston, US | 15 | 252 |
# of filed Patents : 15 Total Citations : 252 |
Cited Art Landscape
- No Cited Art to Display

Patent Citation Ranking
- 0 Citation Count
- E21B Class
- 0 % this patent is cited more than
- 8 Age
Forward Cite Landscape
- No Forward Cites to Display

Maintenance Fees
Fee | Large entity fee | small entity fee | micro entity fee | due date |
---|---|---|---|---|
7.5 Year Payment | $3600.00 | $1800.00 | $900.00 | Jan 25, 2025 |
11.5 Year Payment | $7400.00 | $3700.00 | $1850.00 | Jan 25, 2029 |
Fee | Large entity fee | small entity fee | micro entity fee |
---|---|---|---|
Surcharge - 7.5 year - Late payment within 6 months | $160.00 | $80.00 | $40.00 |
Surcharge - 11.5 year - Late payment within 6 months | $160.00 | $80.00 | $40.00 |
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 |
---|---|---|---|
Feb 23, 2015 | STCH | INFORMATION ON STATUS: PATENT DISCONTINUATION | free format text: PATENT EXPIRED DUE TO NONPAYMENT OF MAINTENANCE FEES UNDER 37 CFR 1.362 |
Jan 25, 2015 | FP | LAPSED DUE TO FAILURE TO PAY MAINTENANCE FEE | Effective Date: Jan 25, 2015 |
Jan 25, 2015 | LAPS | LAPSE FOR FAILURE TO PAY MAINTENANCE FEES | |
Sep 05, 2014 | REMI | MAINTENANCE FEE REMINDER MAILED | |
Jan 25, 2011 | I | Issuance | |
Nov 18, 2010 | P | Published | |
Feb 20, 2009 | AS | ASSIGNMENT | free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:KUNDU, TAPAS KUMAR;VIKRU, RUTHROTHA SELVI BHARATHA;ANNAVARAPU, HARI KISHORE;AND OTHERS;SIGNING DATES FROM 20090126 TO 20090205;REEL/FRAME:022292/0600 Owner name: JAWAHARLAL NEHRU CENTRE FOR ADVANCED SCIENTIFIC RE |
Jun 26, 2007 | F | Filing | |
Jun 27, 2006 | PD | Priority Date |

Matter Detail

Renewals Detail
