Inventor

ZEIHER E H KELLE

US14 patents

⚠️ This page may combine multiple inventors who share the name “ZEIHER E H KELLE”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

NALCO CO

8 patents

US7060136B1Jun 13, 2006

Method of monitoring membrane cleaning processes

NALCO CO52 citations96

US6730227B2May 4, 2004

Method of monitoring membrane separation processes

NALCO CO51 citations96

US7169236B2Jan 30, 2007

Method of monitoring membrane cleaning processes

NALCO CO51 citations92

US6838002B2Jan 4, 2005

Method of monitoring membrane separation processes

NALCO CO34 citations92

US6838001B2Jan 4, 2005

Method of monitoring membrane separation processes

NALCO CO41 citations92

US6821428B1Nov 23, 2004

Method of monitoring membrane separation processes

NALCO CO31 citations91

US6699684B2Mar 2, 2004

Method of monitoring biofouling in membrane separation systems

NALCO CO52 citations89

US7662289B2Feb 16, 2010

Method of cleaning fouled or scaled membranes

NALCO CO8 citations82

NALCO CHEMICAL CO

4 patents

US5358640AOct 25, 1994

Method for inhibiting scale formation and/or dispersing iron in reverse osmosis systems

NALCO CHEMICAL CO81 citations95

US6258277B1Jul 10, 2001

Composition and method for simultaneously precipitating metal ions from semiconductor wastewater and enhancing microfilter operation

NALCO CHEMICAL CO43 citations91

US5256303AOct 26, 1993

Method for inhibiting scale formation and/or dispersing iron in reverse osmosis systems

NALCO CHEMICAL CO50 citations91

US6017459AJan 25, 2000

Apparatus and method for the monitoring of membrane deposition

NALCO CHEMICAL CO40 citations88

GARRATT CALLAHAN COMPANY

2 patents

US11970411B1Apr 30, 2024

Use of hollow fiber filtration in conjunction with precipitant technologies to reclaim water from complex aqueous waste streams

GARRATT CALLAHAN COMPANY0 citations48

US11203536B1Dec 21, 2021

Use of hollow fiber filtration in conjunction with precipitant technologies to reclaim water from complex aqueous waste streams

GARRATT CALLAHAN COMPANY1 citations48