% Expired Patents = 16.7

Forward Citations = 153

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4 inventors (with patents filed for the assignee):

Angelo Yializis (6 out of 55 patents)

Michael G Mikhael (5 out of 25 patents)

Shahid Ali Pirzada (2 out of 7 patents)

4. Wolfgang Decker (2 out of 4 patents)

6 patents: Sort by Forward Citations

1. 6649433 - Self-healing flexible photonic composites for light sources (2003-11-18),

2. 6468595 - Vaccum deposition of cationic polymer systems (2002-10-22),

3. 6447553 - Vacuum-deposited colorants (2002-09-10),

4. 6441553 - Electrode for glow-discharge atmospheric-pressure plasma treatment (2002-08-27),

5. 6270841 - Thin coating manufactured by vapor deposition of solid oligomers (2001-08-07),

6. 6118218 - Steady-state glow-discharge plasma at atmospheric pressure (2000-09-12),

Company Overview

Sigma Technologies International, Inc. is a leading provider of innovative technology solutions for a wide range of industries. With a focus on research and development, Sigma Technologies offers cutting-edge products and services to help businesses improve their operational efficiency and drive growth. From software development to hardware solutions, Sigma Technologies is dedicated to delivering high-quality, reliable technology solutions to meet the evolving needs of its clients.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Oct 6 2026

6 Patents

#112 in Tucson, AZ

#597 in Arizona

#44,949 in US

Tucson, AZ, United States of America

Sigma Technologies International, Inc.

Forward Citations = 153

4 inventors:

Angelo Yializis (6 out of 55 patents)

Michael G Mikhael (5 out of 25 patents)

Shahid Ali Pirzada (2 out of 7 patents)

4. Wolfgang Decker (2 out of 4 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Sigma Technologies International, Inc.. Retrieved from https://idiyas.com/company/sigma-technologies-international

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]