John K. Chan

Person

Needham, MA, US

People

Patents Grantslast 30 patents

Information Patent Grant
Methods of making a cell stack for an electrical purification appar...
- Patent number 9,463,987
- Issue date Oct 11, 2016
- Evoqua Water Technologies Pte. Ltd.
- Li-Shiang Liang
- C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
Information Patent Grant
Electrical purification apparatus having a blocking spacer
- Patent number 9,463,988
- Issue date Oct 11, 2016
- Evoqua Water Technologies Pte. Ltd.
- Li-Shiang Liang
- C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
Information Patent Grant
Electrical purification apparatus
- Patent number 9,227,858
- Issue date Jan 5, 2016
- Evoqua Water Technologies Pte. Ltd.
- Li-Shiang Liang
- C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
Information Patent Grant
Method of providing a source of potable water
- Patent number 9,138,689
- Issue date Sep 22, 2015
- Evoqua Water Technologies Pte. Ltd.
- Li-Shiang Liang
- C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
Information Patent Grant
Electrical purification apparatus having a blocking spacer
- Patent number 8,956,521
- Issue date Feb 17, 2015
- Evoqua Water Technologies LLC
- Li-Shiang Liang
- C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
Information Patent Grant
Methods of making a cell stack for an electrical purification appar...
- Patent number 8,627,560
- Issue date Jan 14, 2014
- Siemens Water Technologies Pte. Ltd.
- Li-Shiang Liang
- C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE

Patents Applicationslast 30 patents

Information Patent Application
ELECTRICAL PURIFICATION APPARATUS HAVING A BLOCKING SPACER
- Publication number 20150122657
- Publication date May 7, 2015
- EVOQUA WATER TECHNOLOGIES PTE. LTD.
- Li-Shiang Liang
- C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
Information Patent Application
METHODS OF MAKING A CELL STACK FOR AN ELECTRICAL PURIFICATION APPAR...
- Publication number 20140115877
- Publication date May 1, 2014
- Siemens Water Technologies Pte Ltd.
- Li-Shiang Liang
- C25 - ELECTROLYTIC OR ELECTROPHORETIC PROCESSES APPARATUS THEREFOR
Information Patent Application
Methods of Making a Cell Stack for an Electrical Purification Appar...
- Publication number 20120117789
- Publication date May 17, 2012
- Siemens Pte Ltd
- Li-Shiang Liang
- C25 - ELECTROLYTIC OR ELECTROPHORETIC PROCESSES APPARATUS THEREFOR
Information Patent Application
ELECTRICAL PURIFICATION APPARATUS HAVING A BLOCKING SPACER
- Publication number 20120118728
- Publication date May 17, 2012
- Siemens Pte Ltd
- Li-Shiang Liang
- C25 - ELECTROLYTIC OR ELECTROPHORETIC PROCESSES APPARATUS THEREFOR
Information Patent Application
METHOD OF PROVIDING A SOURCE OF POTABLE WATER
- Publication number 20120118738
- Publication date May 17, 2012
- Siemens Pte Ltd
- Li-Shiang Liang
- C25 - ELECTROLYTIC OR ELECTROPHORETIC PROCESSES APPARATUS THEREFOR
Information Patent Application
ELECTRICAL PURIFICATION APPARATUS
- Publication number 20120118743
- Publication date May 17, 2012
- Siemens Pte Ltd
- Li-Shiang Liang
- C25 - ELECTROLYTIC OR ELECTROPHORETIC PROCESSES APPARATUS THEREFOR

John K. Chan

Person

Patents Grantslast 30 patents

Methods of making a cell stack for an electrical purification appar...

Electrical purification apparatus having a blocking spacer

Electrical purification apparatus

Method of providing a source of potable water

Electrical purification apparatus having a blocking spacer

Methods of making a cell stack for an electrical purification appar...

Patents Applicationslast 30 patents

ELECTRICAL PURIFICATION APPARATUS HAVING A BLOCKING SPACER

METHODS OF MAKING A CELL STACK FOR AN ELECTRICAL PURIFICATION APPAR...

Methods of Making a Cell Stack for an Electrical Purification Appar...

ELECTRICAL PURIFICATION APPARATUS HAVING A BLOCKING SPACER

METHOD OF PROVIDING A SOURCE OF POTABLE WATER

ELECTRICAL PURIFICATION APPARATUS