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

Patent Owner(s)

Patent Owner	Address
SGS-THOMSON MICROELECTRONICS S A	GINTILLY

International Classification(s)

• G05F:SYSTEMS FOR REGULATING ELECTRIC OR MAGNETIC VARIAB....

Inventor(s)

Inventor Name	Address	# of filed Patents	Total Citations
Nicolai, Jean	Chateauneuf le Rouge, FR	23	330
# of filed Patents : 23 Total Citations : 330

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Patent Citation Ranking

• 22 Citation Count
• G05F Class

• 77.98 % this patent is cited more than
• 27 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: 9919935

Acid regeneration of ion exchange resins for industrial applications

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Abstract

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Methods and systems for employing softened acidified water sources from an acid regenerated ion exchange resins are disclosed. Various methods of dispensing and/or using the softened acidic water generated by an acid regenerate-able ion exchange resin are disclosed to beneficially reduce spotting, filming and scale buildup on treated surfaces, reduce and/or eliminate the need for polymers, including water conditioning agents, threshold reagents and/or rinse aids, and using protons generated in the acidic water effluent for triggering events useful in various cleaning applications.

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Description

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Claims

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Legal Events

 

• MAFP2025
• MAFP2021
• AS2020
• AS2019
• I2017
• STCF2017
• P2016
• F2016
• AS2015

Date	Code	Event	Description
Apr 10, 2025	MAFP	MAINTENANCE FEE PAYMENT	free format text: PAYMENT OF MAINTENANCE FEE, 8TH YEAR, LARGE ENTITY (ORIGINAL EVENT CODE: M1552); ENTITY STATUS OF PATENT OWNER: LARGE ENTITY year of fee payment: 8
Apr 12, 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
Apr 24, 2020	AS	ASSIGNMENT	free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:VEECO INSTRUMENTS INC.;REEL/FRAME:052594/0086 Owner name: KLA CORPORATION, CALIFORNIA Effective Date: Apr 24, 2020
Dec 19, 2019	AS	ASSIGNMENT	free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:ULTRATECH, INC.;REEL/FRAME:051446/0476 Owner name: VEECO INSTRUMENTS INC., NEW YORK Effective Date: Dec 19, 2019
Oct 10, 2017	I	Issuance
Sep 20, 2017	STCF	INFORMATION ON STATUS: PATENT GRANT	free format text: PATENTED CASE
Dec 15, 2016	P	Published
May 12, 2016	F	Filing
May 20, 2015	AS	ASSIGNMENT	free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:STITES, DAVID G.;REEL/FRAME:038562/0945 Owner name: ULTRATECH, INC., CALIFORNIA Effective Date: May 20, 2015