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For the Inventor, By the Inventor

Bryn Mawr, PA, United States of America

Kewanee Industries

Calculating rank
USPTO Granted Patents = 21

Trademarks = 1

Forward Citations = 132

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17 inventors (with patents filed for the assignee):

goldMedal John J Merianos (14 out of 87 patents)

silverMedal Harold A Green (13 out of 39 patents)

bronzeMedal Alfonso N Petrocci (12 out of 34 patents)

4.  Phillip Adams (3 out of 15 patents)

5.  Harold E Swift (2 out of 86 patents)

6.  Morris Weinstein (2 out of 8 patents)

7.  Elliot H Baum (2 out of 2 patents)

8.  Saul Kaplan (2 out of 3 patents)

9.  Robert A Innes (2 out of 16 patents)

10.  Robert W Bender (1 out of 3 patents)

11.  Gerald R Ferrante (1 out of 1 patent)

12.  Marvin Weiss (1 out of 3 patents)

13.  Gerald I Nass (1 out of 3 patents)

14.  Roland L Leitner (1 out of 3 patents)

15.  Kenneth W Prodo (1 out of 2 patents)


21 patents:

1. 4374244 - Linear quaternary ammonium polymers (1983-02-15),
2. 4325940 - Anti-microbial, cosmetic and water-treating ionene polymeric compounds (1982-04-20),
3. 4304910 - Quarnary ammonium polymeric anti-microbial agent (1981-12-08),
4. 4293716 - Process for preparing alkyldimethylamines (1981-10-06),
5. 4251465 - Process for preparing alkyldimethylamines (1981-02-17),
6. 4209397 - Flocculants for aqueous systems (1980-06-24),
7. 4192817 - Amphoteric surfactants (1980-03-11),
8. 4190644 - Hair conditioning compounds (1980-02-26),
9. 4188293 - Method of effecting flocculation (1980-02-12),
10. 4158644 - Cleaner and grease emulsifier (1979-06-19),
11. 4155994 - Hair conditioning agents (1979-05-22),
12. 4155710 - Process for preventing fading in textiles (1979-05-22),
13. 4140798 - Method of inhibiting microorganisms (1979-02-20),
14. 4133772 - Aqueous detergent compositions containing amphoteric surfactants having (1979-01-09),
15. 4104144 - Radiation-curable coating compositions and inks (1978-08-01),
Company Overview
Kewanee Industries, based in Bryn Mawr, PA, specializes in the development and manufacturing of advanced industrial equipment and components. The company focuses on innovative solutions for various sectors, including energy, manufacturing, and environmental technologies. With a commitment to quality and performance, Kewanee Industries leverages cutting-edge research and technology to enhance operational efficiency and sustainability in industrial applications. Its expertise positions the company as a key player in the evolving landscape of industrial solutions.
Profile summary synthesized from public USPTO records and patent filings.

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USPTO Data Jan 1 1976 - Nov 10 2026

21 Patents

#1 in Bryn Mawr, PA

#572 in Pennsylvania

#15,748 in US

#30,080 in the World

Bryn Mawr, PA (US)
Bryn Mawr, PA, United States of America

Kewanee Industries

Forward Citations = 132

17 inventors:

goldMedal John J Merianos (14 out of 87 patents)

silverMedal Harold A Green (13 out of 39 patents)

bronzeMedal Alfonso N Petrocci (12 out of 34 patents)

4.  Phillip Adams (3 out of 15 patents)

5.  Harold E Swift (2 out of 86 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Kewanee Industries. Retrieved from https://idiyas.com/company/kewanee-industries

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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