For the Inventor, By the Inventor

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Watertown, MA, United States of America

Ionics, Inc.

USPTO Granted Patents = 125

% Expired Patents = 4.8

EPO Patents = 2

Trademarks = 5

Forward Citations = 3,840

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76 inventors (with patents filed for the assignee):

Russell James MacDonald (19 out of 37 patents)

Keith James Sims (15 out of 19 patents)

Arthur L Goldstein (15 out of 16 patents)

4. Russell B Hodgdon (15 out of 16 patents)

5. Wayne A McRae (14 out of 14 patents)

6. Edgardo J Parsi (10 out of 10 patents)

7. Irving D Elyanow (9 out of 9 patents)

8. Surendar M Jain (9 out of 10 patents)

9. Warren A Waite (7 out of 7 patents)

10. Samuel S Alexander (6 out of 7 patents)

11. William W Carson (5 out of 34 patents)

12. Gerald A Krulik (5 out of 27 patents)

13. Anthony J Giuffrida (4 out of 18 patents)

14. Joseph J Bostjancic (4 out of 6 patents)

15. Thomas J Susa (4 out of 5 patents)

Core Competencies:

Electrodialysis

Ion Exchange

Wastewater Remediation

Water Treatment

Membrane Technology

Filtration

Nanofiltration

Pollutant Removal

Bipolar Membranes

Polymeric Membranes

Chemical Treatment

Water Purification

125 patents: Sort by Forward Citations

1. 7794577 - Spacer for filled cell electrodialysis (2010-09-14),

2. 7662267 - Device and method for electrodialysis (2010-02-16),

3. 7371326 - Water treatment/remediation system (2008-05-13),

4. 7264737 - Control of water treatment system with low level boron detection (2007-09-04),

5. 7094325 - EDI and related stacks and method and apparatus for preparing such (2006-08-22),

6. 7087654 - Ion exchange and electrochemical methods and devices employing one-step quaternized and polymerized anion selective polymers (2006-08-08),

7. 6796436 - Method and apparatus for preparing pure water (2004-09-28),

8. 6733636 - Water treatment method for heavy oil production (2004-05-11),

9. 6723246 - Filter cleaning method (2004-04-20),

10. 6652758 - Simultaneous ammonia and fluoride treatment for wastewater (2003-11-25),

11. 6645385 - System and method for removal of fluoride from wastewater using single fluoride sensing electrode (2003-11-11),

12. 6613230 - Method for simultaneous removal of arsenic and fluoride from aqueous solutions (2003-09-02),

13. 6582605 - Method of treating industrial waste waters (2003-06-24),

14. 6410672 - Ion exchange and electrochemical methods and devices employing one-step quaternized and polymerized anion selective polymers (2002-06-25),

15. 6344584 - Process for producing styrene sulfonate cation (2002-02-05),

Company Overview

Ionics, Inc., based in Watertown, MA, specializes in advanced water treatment technologies, focusing on electrodialysis, ion exchange, and membrane filtration. The company is dedicated to developing innovative solutions for wastewater remediation and pollutant removal, addressing critical environmental challenges. With expertise in nanofiltration and various filtration techniques, Ionics aims to enhance water quality and sustainability across diverse applications, contributing to cleaner water resources and improved public health.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Oct 13 2026

125 Patents

#3 in Watertown, MA

#169 in Massachusetts

#3,100 in US

#6,406 in the World

Watertown, MA, United States of America

Ionics, Inc.

Forward Citations = 3,840

76 inventors:

Russell James MacDonald (19 out of 37 patents)

Keith James Sims (15 out of 19 patents)

Arthur L Goldstein (15 out of 16 patents)

4. Russell B Hodgdon (15 out of 16 patents)

5. Wayne A McRae (14 out of 14 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Ionics, Inc.. Retrieved from https://idiyas.com/company/ionics

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

Data Sources: USPTO Patent Grant XML, Patent Center, EPO & CIPO • Normalized by IDiyas Innovation Graph. Methodology & provenance architecturePlease report any incorrect information to [email protected]

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