Portland, CT, United States of America

John J Brennan

This inventor holds 21 USPTO granted patents, plus 1 CIPO patent, primarily in Composite Materials. Top assignees: United Technologies Corporation, Corning Glass Works. Active years: 1976-2002.

IDiyas Innovation Intelligence. (2026). Inventor Profile: John J Brennan. Retrieved from https://idiyas.com/inventor/john-j-brennan

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


% Patents Active = 100.0


Average Co-Inventor Count = 2.2

ph-index = 14

Forward Citations = 555(Granted Patents)


Company Filing History:


Years Active: 1976-2002

Loading Chart...
Loading Chart...
Areas of Expertise:
Silicon Carbide
Fiber Reinforced
Composite Parts
Gas Turbine Engine
High Temperature
Glass-Ceramic
Thermal Barrier
Refractoriness
Impact Strength
Magnesium Aluminosilicate
Internal Combustion Engine
CVD Composites
21 patents (USPTO):Explore Patents

Title: The Innovative Contributions of John J Brennan

Introduction: John J Brennan, a prolific inventor based in Portland, CT, has made significant strides in the field of materials science and composite engineering. With a remarkable portfolio that includes 21 patents, he has consistently pushed the boundaries of innovation.

Latest Patents: Brennan's latest patents showcase his expertise and innovative thinking. One of his significant inventions is a substrate containing silicon and a barrier layer that functions as a protective and thermal barrier coating. This barrier layer is composed of an alkaline earth aluminosilicate and an additive component capable of reacting with silica. Additionally, he has developed CVD SiC matrix composites that incorporate carbon-coated fibers. By utilizing chemical vapor deposition (CVD) techniques, these tough silicon carbide (SiC) matrix composites benefit from a carbon layer that enhances fracture toughness.

Career Highlights: Throughout his career, John J Brennan has been associated with prestigious companies, including United Technologies Corporation and Corning Glass Works. His contributions at these organizations have significantly influenced advancements in material applications and composite technologies.

Collaborations: Brennan has collaborated with notable contemporaries such as Karl M Prewo and Kenneth Chyung. These partnerships have fostered a creative exchange that has led to the development of innovative solutions in the realm of engineering and materials science.

Conclusion: John J Brennan stands out as a dynamic innovator in his field. His extensive patent portfolio, collaborative spirit, and commitment to advancing technology reflect his significant role in pushing the frontiers of innovation. As he continues to explore new possibilities, his work undoubtedly paves the way for future advancements in material science and engineering.

Profile summary based on public USPTO records.
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]
Loading…