For the Inventor, By the Inventor

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Union, NJ, United States of America

The Graver Company

USPTO Granted Patents = 35

CIPO Patents = 2

Forward Citations = 530

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26 inventors (with patents filed for the assignee):

Eli Salem (15 out of 17 patents)

Robert Kunin (11 out of 22 patents)

Donald J Butterworth (4 out of 8 patents)

4. Michael J O'Brien (3 out of 22 patents)

5. Alfonse J Soriente (3 out of 3 patents)

6. Thomas A Davis (3 out of 10 patents)

7. George C Flynn (3 out of 5 patents)

8. Kurt Bozenmayer (2 out of 5 patents)

9. Bruce L Libutti (2 out of 13 patents)

10. Frederick P Chlanda (2 out of 31 patents)

11. Jian-Ping Huang (2 out of 2 patents)

12. Christopher Andreola (1 out of 2 patents)

13. Leo Ryan (1 out of 1 patent)

14. Frank Matunas (1 out of 1 patent)

15. Marvin Lane (1 out of 1 patent)

Core Competencies:

Ion Exchange Membranes

High Performance Polymers

Water Treatment

Aqueous Solutions

Bipolar Membrane Stack

Cation Exchange Resins

Condensate Polishing

Backwash Methods

Liquid Purification

Regeneration Systems

Filtration Techniques

Separation Methods

35 patents: Sort by Forward Citations

1. 5643968 - Process for producing ion exchange membranes, and the ion exchange (1997-07-01),

2. 5624965 - Arylenedialkylidene polymers for high performance ion exchange membranes (1997-04-29),

3. 5601704 - Automatic feedback control system for a water treatment apparatus (1997-02-11),

4. 5403492 - Ion exchange resin having dual morphology (1995-04-04),

5. 5397477 - Ion exchange resin having dual morphology (1995-03-14),

6. 5376278 - Filter and a method for separating charged particles from a liquid stream (1994-12-27),

7. 5346624 - Method and apparatus for treatment of aqueous solutions (1994-09-13),

8. 5250159 - Bipolar membrane stack and method for producing acid and monovalent base (1993-10-05),

9. 5212205 - Regeneration of deep bed condensate polishers (1993-05-18),

10. 5207905 - Baffle assembly for air and water backwash of a media filter (1993-05-04),

11. 5207879 - Bipolar membrane stack and method for production of low chloride sodium (1993-05-04),

12. 5196122 - External regeneration system for mixed bed ion exchangers (1993-03-23),

13. 5192446 - Cation exchange resins having an enhanced capacity for iron oxides (1993-03-09),

14. 5126052 - Condensate polishing system incorporating a membrane filter (1992-06-30),

15. 5114596 - Backwash method and apparatus (1992-05-19),

Company Overview

The Graver Company, based in Union, NJ, specializes in advanced filtration and separation technologies. The organization develops innovative solutions for various industries, including water treatment, food and beverage, and pharmaceuticals. With a focus on enhancing efficiency and sustainability, Graver's products are designed to meet the evolving needs of its clients. The company is committed to research and development, ensuring its technologies remain at the forefront of industry standards and practices.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Oct 6 2026

35 Patents

#2 in Union, NJ

#392 in New Jersey

#9,740 in US

#19,148 in the World

Union, NJ, United States of America

The Graver Company

Forward Citations = 530

26 inventors:

Eli Salem (15 out of 17 patents)

Robert Kunin (11 out of 22 patents)

Donald J Butterworth (4 out of 8 patents)

4. Michael J O'Brien (3 out of 22 patents)

5. Alfonse J Soriente (3 out of 3 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: The Graver Company. Retrieved from https://idiyas.com/company/graver-company

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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