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

Patent Owner(s)

Patent Owner	Address
APPA TECHNOLOGY CORP	9F NO 119-1 PAO-ZONG RD SHINTIEN TAIPEI R O C

International Classification(s)

• 1004:OTHER MEASURING INSTRUMENTS, APPARATUS AND DEVICES

• 2005 Application Filing Year
• 1004 Class
• 107 Applications Filed
• 107 Patents Issued To-Date
• 100 % Issued To-Date

Inventor(s)

Inventor Name	Address	# of filed Patents	Total Citations
Chang, Shan-Wen	Taipei, TW	18	166
# of filed Patents : 18 Total Citations : 166

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Patent Citation Ranking

• 9 Citation Count
• 1004 Class

• 0 % this patent is cited more than
• 19 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: 8646482

Microfluidic pump and valve structures and fabrication methods

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Abstract

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Plastic microfluidic structures having a substantially rigid diaphragm that actuates between a relaxed state wherein the diaphragm sits against the surface of a substrate and an actuated state wherein the diaphragm is moved away from the substrate. As will be seen from the following description, the microfluidic structures formed with this diaphragm provide easy to manufacture and robust systems, as well readily made components such as valves and pumps.

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Description

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Claims

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Legal Events

 

• MAFP2021
• AS2021
• FPAY2017
• I2014
• STCF2014
• P2011
• F2010
• AS2010
• PD2004

Date	Code	Event	Description
Aug 06, 2021	MAFP	MAINTENANCE FEE PAYMENT	free format text: PAYMENT OF MAINTENANCE FEE, 8TH YR, SMALL ENTITY (ORIGINAL EVENT CODE: M2552); ENTITY STATUS OF PATENT OWNER: SMALL ENTITY year of fee payment: 8
May 17, 2021	AS	ASSIGNMENT	free format text: SECURITY INTEREST;ASSIGNOR:RHEONIX, INC.;REEL/FRAME:056254/0074 Owner name: GRASSHOPPER BANK, N.A., NEW YORK Effective Date: May 17, 2021
Aug 02, 2017	FPAY	FEE PAYMENT	year of fee payment: 4
Feb 11, 2014	I	Issuance
Jan 22, 2014	STCF	INFORMATION ON STATUS: PATENT GRANT	free format text: PATENTED CASE
Feb 24, 2011	P	Published
Aug 12, 2010	F	Filing
Aug 12, 2010	AS	ASSIGNMENT	free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:ZHOU, PENG;YOUNG, LINCOLN C.;REEL/FRAME:024829/0351 Owner name: RHEONIX, INC., NEW YORK Effective Date: Aug 12, 2010
Oct 13, 2004	PD	Priority Date