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• 15 United States
• 10 France
• 8 Japan
• 7 China
• 5 Korea
• 2 Other

Patent Owner(s)

Patent Owner	Address
UNION OIL COMPANY OF CALIFORNIA DBA UNOCAL	2141 ROSECRANS AVENUE SUITE 4000 A CORPORATION OF CALIFORNIA EL SEGUNDO CA 90245

International Classification(s)

• G06F:ELECTRIC DIGITAL DATA PROCESSING

Inventor(s)

Inventor Name	Address	# of filed Patents	Total Citations
Keller, David	Missouri City, TX	96	1357
# of filed Patents : 96 Total Citations : 1357
Kramer, Darrell L	Lafayette, LA	1	47
# of filed Patents : 1 Total Citations : 47

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Patent Citation Ranking

• 47 Citation Count
• G06F Class

• 76.46 % this patent is cited more than
• 25 Age

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Maintenance Fees

Fee	Large entity fee	small entity fee	micro entity fee	due date

Fee	Large entity fee	small entity fee	micro entity fee
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

US Patent No: 6141622

Seismic semblance/discontinuity method

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Abstract

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A semblance attribute to more reliably detect a seismic discontinuity is provided. The semblance attribute of the center point of a seismic volume is calculated from 3D traces within a spatial and time window. The seismic attribute is dependent, at least in part, on the ratio of the square of the sum of the amplitudes of said traces within the window and the sum of the squared amplitudes of said seismic traces over within the window.

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Description

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Claims

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Legal Events

 

• STCH2012
• FP2012
• LAPS2012
• REMI2012
• FPAY2008
• FPAY2004
• FEPP2003
• I2000
• AS1997
• F1996
• PD1996

Date	Code	Event	Description
Nov 26, 2012	STCH	INFORMATION ON STATUS: PATENT DISCONTINUATION	free format text: PATENT EXPIRED DUE TO NONPAYMENT OF MAINTENANCE FEES UNDER 37 CFR 1.362
Oct 31, 2012	FP	LAPSED DUE TO FAILURE TO PAY MAINTENANCE FEE	Effective Date: Oct 31, 2012
Oct 31, 2012	LAPS	LAPSE FOR FAILURE TO PAY MAINTENANCE FEES
Jun 11, 2012	REMI	MAINTENANCE FEE REMINDER MAILED
Mar 20, 2008	FPAY	FEE PAYMENT	year of fee payment: 8
Apr 30, 2004	FPAY	FEE PAYMENT	year of fee payment: 4
Dec 05, 2003	FEPP	FEE PAYMENT PROCEDURE	free format text: PAYOR NUMBER ASSIGNED (ORIGINAL EVENT CODE: ASPN); ENTITY STATUS OF PATENT OWNER: LARGE ENTITY
Oct 31, 2000	I	Issuance
May 06, 1997	AS	ASSIGNMENT	free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:KELLER, DAVID;KRAMER, DARRELL L.;REEL/FRAME:008493/0247;SIGNING DATES FROM 19970331 TO 19970408 Owner name: UNION OIL COMPANY OF CALIFORNIA, DBA UNOCAL, CALIF
Nov 15, 1996	F	Filing
Nov 15, 1996	PD	Priority Date