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Country	kind	publication No.	Filing Date	Type	Sub-Type
CN	A	CN115185682	Jun 30, 2022	Patent	Application
Type : Patent Sub-Type : Application
UNEXAMINED APPLICATION FOR A PATENT FOR INV.		Task processing method and device		Oct 14, 2022

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

Patent Owner(s)

Patent Owner	Address
LENOVO (BEIJING) LIMITED	BEIJING

International Classification(s)

• G06F:ELECTRIC DIGITAL DATA PROCESSING

Inventor(s)

Inventor Name	Address	# of filed Patents	Total Citations
CAO, Zisheng	Beijing, CN	88	605
# of filed Patents : 88 Total Citations : 605
WANG, Peng	Beijing, CN	1420	6748
# of filed Patents : 1420 Total Citations : 6748
WANG, Qigang	Beijing, CN	8	28
# of filed Patents : 8 Total Citations : 28

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• 1 Age

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Maintenance Fees

Fee	Large entity fee	small entity fee	micro entity fee	due date
3.5 Year Payment	$1600.00	$800.00	$400.00	Jul 4, 2027
7.5 Year Payment	$3600.00	$1800.00	$900.00	Jul 4, 2031
11.5 Year Payment	$7400.00	$3700.00	$1850.00	Jul 4, 2035

Fee	Large entity fee	small entity fee	micro entity fee
Surcharge - 3.5 year - Late payment within 6 months	$160.00	$80.00	$40.00
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

US Patent No: 9593552

Cementing a wellbore using cementing material encapsulated in a shell

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Abstract

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A system for cementing a wellbore penetrating an earth formation into which a pipe extends. A cement material is positioned in the space between the wellbore and the pipe by circulated capsules containing the cement material through the pipe into the space between the wellbore and the pipe. The capsules contain the cementing material encapsulated in a shell. The capsules are added to a fluid and the fluid with capsules is circulated through the pipe into the space between the wellbore and the pipe. The shell is breached once the capsules contain the cementing material are in position in the space between the wellbore and the pipe.

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Description

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Claims

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Legal Events

 

• LAPS2025
• FP2025
• FEPP2024
• MAFP2020
• I2017
• STCF2017
• AS2017
• P2016
• AS2016
• F2016
• AS2016
• PD2013

Date	Code	Event	Description
Apr 21, 2025	LAPS	LAPSE FOR FAILURE TO PAY MAINTENANCE FEES	free format text: PATENT EXPIRED FOR FAILURE TO PAY MAINTENANCE FEES (ORIGINAL EVENT CODE: EXP.); ENTITY STATUS OF PATENT OWNER: LARGE ENTITY
Mar 14, 2025	FP	LAPSED DUE TO FAILURE TO PAY MAINTENANCE FEE	Effective Date: Mar 14, 2025
Nov 04, 2024	FEPP	FEE PAYMENT PROCEDURE	free format text: MAINTENANCE FEE REMINDER MAILED (ORIGINAL EVENT CODE: REM.); ENTITY STATUS OF PATENT OWNER: LARGE ENTITY
Jun 24, 2020	MAFP	MAINTENANCE FEE PAYMENT	free format text: PAYMENT OF MAINTENANCE FEE, 4TH YEAR, LARGE ENTITY (ORIGINAL EVENT CODE: M1551); ENTITY STATUS OF PATENT OWNER: LARGE ENTITY year of fee payment: 4
Mar 14, 2017	I	Issuance
Feb 22, 2017	STCF	INFORMATION ON STATUS: PATENT GRANT	free format text: PATENTED CASE
Jan 19, 2017	AS	ASSIGNMENT	free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:COWAN, KENNETH MICHAEL;REEL/FRAME:041038/0726 Owner name: APACHE CORPORATION, TEXAS Effective Date: Jan 19, 2017
Dec 08, 2016	P	Published
Aug 17, 2016	AS	ASSIGNMENT	free format text: CONFIRMATORY LICENSE;ASSIGNOR:LAWRENCE LIVERMORE NATIONAL SECURITY, LLC;REEL/FRAME:039503/0761 Owner name: U.S. DEPARTMENT OF ENERGY, DISTRICT OF COLUMBIA Effective Date: Aug 17, 2016
Aug 02, 2016	F	Filing
Aug 02, 2016	AS	ASSIGNMENT	free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:AINES, ROGER D.;BOURCIER, WILLIAM L.;DUOSS, ERIC B.;AND OTHERS;SIGNING DATES FROM 20160706 TO 20160728;REEL/FRAME:039319/0343 Owner name: LAWRENCE LIVERMORE NATIONAL SECURITY, LLC, CALIFOR
Oct 16, 2013	PD	Priority Date