For the Inventor, By the Inventor

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Glen Rock, PA, United States of America

Stewart Connector Systems, Inc.

USPTO Granted Patents = 27

% Expired Patents = 7.4

CIPO Patents = 1

Trademarks = 3

Forward Citations = 623

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32 inventors (with patents filed for the assignee):

Ronald P Locati (11 out of 15 patents)

John Matthew Hess (7 out of 11 patents)

Richard D Marowsky (6 out of 18 patents)

4. Robert Colantuono (6 out of 15 patents)

5. Derek Imschweiler (6 out of 7 patents)

6. David Hatch (6 out of 6 patents)

7. Jeffrey Wallace Fleming (5 out of 5 patents)

8. Mervin Fair (5 out of 5 patents)

9. Don McClune (5 out of 5 patents)

10. Anila Patel (4 out of 4 patents)

11. Ted R Meckley (4 out of 4 patents)

12. Patrick Hulbert (3 out of 3 patents)

13. Justin S Wagner (2 out of 16 patents)

14. Leonard K Espenshade (2 out of 21 patents)

15. Louis Csanko (2 out of 2 patents)

Core Competencies:

High Frequency

Electrical Connector

Modular Assembly

Surface Mount

Multi-Port

Electrostatic Discharge

Magnetic Filter

Printed Circuit Board

Optical Interconnection

Flexible Laminate

Low Profile

High Density

27 patents: Sort by Forward Citations

1. 6877222 - Method for manufacturing a high frequency electrical connector (2005-04-12),

2. 6676423 - Modular electrical connector assembly providing electrostatic discharge upon insertion of a mating connector (2004-01-13),

3. 6602097 - High frequency electrical connector (2003-08-05),

4. 6579127 - High frequency electrical connector assembly such as a multi-port multi-level connector assembly (2003-06-17),

5. 6554638 - Modular electrical connector assemblies with magnetic filter and/or visual indicator (2003-04-29),

6. 6524128 - Modular plug wire aligner (2003-02-25),

7. 6428361 - Surface mountable connector assembly including a printed circuit board (2002-08-06),

8. 6419526 - High frequency bi-level offset multi-port jack (2002-07-16),

9. 6409535 - Modular electrical plug and plug-cable assembly including the same (2002-06-25),

10. 6402559 - Modular electrical plug, plug-cable assemblies including the same, and load bar and terminal blade for same (2002-06-11),

11. 6398591 - Modular jack for tubular enclosures (2002-06-04),

12. 6368159 - Light pipe for a modular jack (2002-04-09),

13. 6267628 - High frequency electrical connector assembly such as a multi-port multi-level connector assembly (2001-07-31),

14. 6250964 - Shield for a jack (2001-06-26),

15. 6217391 - Low profile modular electrical jack and communication card including the same (2001-04-17),

Company Overview

Stewart Connector Systems, Inc. is a prominent manufacturer specializing in high-performance connectivity solutions. Based in Glen Rock, Pennsylvania, the company focuses on developing innovative products for various industries, including telecommunications and data networking. Their expertise encompasses a range of technologies, particularly in the design and production of connectors and cable assemblies that enhance data transmission and connectivity. Stewart Connector is committed to delivering reliable and efficient solutions to meet the evolving needs of its global clientele.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Oct 13 2026

27 Patents

#2 in Glen Rock, PA

#454 in Pennsylvania

#12,420 in US

#24,012 in the World

Glen Rock, PA, United States of America

Stewart Connector Systems, Inc.

Forward Citations = 623

32 inventors:

Ronald P Locati (11 out of 15 patents)

John Matthew Hess (7 out of 11 patents)

Richard D Marowsky (6 out of 18 patents)

4. Robert Colantuono (6 out of 15 patents)

5. Derek Imschweiler (6 out of 7 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Stewart Connector Systems, Inc.. Retrieved from https://idiyas.com/company/stewart-connector-systems

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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