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

Patent Owner(s)

Patent Owner	Address
OPEX CORPORATION	MOORESTOWN NJ 08057

International Classification(s)

• B02C:CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERA....

• 1989 Application Filing Year
• B02C Class
• 235 Applications Filed
• 0 Patents Issued To-Date
• 0 % Issued To-Date

Inventor(s)

Inventor Name	Address	# of filed Patents	Total Citations
DeWitt, Robert R	Marlton, NJ	90	2111
# of filed Patents : 90 Total Citations : 2111

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Patent Citation Ranking

• 18 Citation Count
• B02C Class

• 0 % this patent is cited more than
• 34 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: 9794069

Systems and methods for authenticating and providing anti-counterfeiting features for important documents

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Abstract

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A method for authenticating a document comprises obtaining the contents of a document, obtaining biometric characteristics from an individual, forming a message based on the contents of the document and the biometric characteristics of the individual, generating a digital signature based on the message and a key, and writing the digital signature to an Radio Frequency Identification (RFID) tag affixed to the document.

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Description

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Claims

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Legal Events

 

• MAFP2021
• AS2018
• AS2018
• I2017
• STCF2017
• P2016
• AS2016
• F2016

Date	Code	Event	Description
Apr 08, 2021	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
Aug 31, 2018	AS	ASSIGNMENT	free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:SMARTRAC TECHNOLOGY FLETCHER, INC.;REEL/FRAME:053943/0024 Owner name: SMART COSMOS SOLUTIONS INC., OHIO Effective Date: Sep 24, 2020 free format text: MERGER AND CHANGE OF NAME;ASSIGNORS:EAPEIRON SOLUTIONS INC.;SMARTRAC TECHNOLOGY FLETCHER, INC.;REEL/FRAME:053942/0902 Owner name: SMARTRAC TECHNOLOGY FLETCHER, INC., NORTH CAROLINA Effective Date: Aug 31, 2018
May 11, 2018	AS	ASSIGNMENT	free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:NEOLOGY, INC.;SINGLE CHIP SYSTEMS CORP.;REEL/FRAME:046321/0793 Owner name: SMARTRAC TECHNOLOGY FLETCHER, INC., NORTH CAROLINA Effective Date: May 11, 2018
Oct 17, 2017	I	Issuance
Sep 27, 2017	STCF	INFORMATION ON STATUS: PATENT GRANT	free format text: PATENTED CASE
Sep 08, 2016	P	Published
Jun 07, 2016	AS	ASSIGNMENT	free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:LIU, JUN;ZHU, JEFFREY;SIGNING DATES FROM 20060425 TO 20080702;REEL/FRAME:038829/0982 Owner name: NEOLOGY, INC., CALIFORNIA
May 17, 2016	F	Filing