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

Patent Owner(s)

Patent Owner	Address
CURATORS OF THE UNIVERSITY OF MISSOURI THE	OFFICE OF TECHNOLOGY AND SPECIAL PROJECTS UNIVERSITY OF MISSOURI SYSTEM 475 MCREYNOLDS HALL COLUMBIA MO 65211-2015

International Classification(s)

• G21H:OBTAINING ENERGY FROM RADIOACTIVE SOURCES; APPLICA....

• 2006 Application Filing Year
• G21H Class
• 12 Applications Filed
• 8 Patents Issued To-Date
• 66.67 % Issued To-Date

Inventor(s)

Inventor Name	Address	# of filed Patents	Total Citations
Prelas, Mark A	Columbia, US	12	131
# of filed Patents : 12 Total Citations : 131

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Patent Citation Ranking

• 4 Citation Count
• G21H Class

• 0 % this patent is cited more than
• 12 Age

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Maintenance Fees

Fee	Large entity fee	small entity fee	micro entity fee	due date
11.5 Year Payment	$7400.00	$3700.00	$1850.00	Apr 8, 2025

Fee	Large entity fee	small entity fee	micro entity fee
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

DATE PUBLISHED	PUBLICATION/PATENT NO.	PUBLICATION TYPE
October 08, 2013	US,8552616,B2   US8552616B2	GRANTED PATENT AS SECOND PUBLICATION
January 29, 2009	US,20090026879,A1   US20090026879A1	FIRST PUBLISHED PATENT APPLICATION

Full Text

US Patent No: 8552616

Micro-scale power source

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Abstract

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A micro-scale power source and method includes a semiconductor structure having an n-type semiconductor region, a p-type semiconductor region and a p-n junction. A radioisotope provides energy to the p-n junction resulting in electron-hole pairs being formed in the n-type semiconductor region and p-type semiconductor region, which causes electrical current to pass through p-n junction and produce electrical power.

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Description

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Claims

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Claims data not available

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Legal Events

 

• LAPS2021
• STCH2021
• FP2021
• FEPP2021
• FPAY2017
• I2013
• STCF2013
• P2009
• AS2008
• F2006
• PD2005

Date	Code	Event	Description
Nov 15, 2021	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: SMALL ENTITY
Nov 15, 2021	STCH	INFORMATION ON STATUS: PATENT DISCONTINUATION	free format text: PATENT EXPIRED DUE TO NONPAYMENT OF MAINTENANCE FEES UNDER 37 CFR 1.362
Oct 08, 2021	FP	LAPSED DUE TO FAILURE TO PAY MAINTENANCE FEE	Effective Date: Oct 08, 2021
May 31, 2021	FEPP	FEE PAYMENT PROCEDURE	free format text: MAINTENANCE FEE REMINDER MAILED (ORIGINAL EVENT CODE: REM.); ENTITY STATUS OF PATENT OWNER: SMALL ENTITY
Apr 10, 2017	FPAY	FEE PAYMENT	year of fee payment: 4
Oct 08, 2013	I	Issuance
Sep 18, 2013	STCF	INFORMATION ON STATUS: PATENT GRANT	free format text: PATENTED CASE
Jan 29, 2009	P	Published
Jul 03, 2008	AS	ASSIGNMENT	free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:PRELAS, MARK A.;REEL/FRAME:021367/0756 Owner name: CURATORS OF THE UNIVERSITY OF MISSOURI, THE, MISSO Effective Date: Jul 03, 2008
Oct 25, 2006	F	Filing
Oct 25, 2005	PD	Priority Date