Rochester Hills, MI, United States of America

Subramaniam Rangaswamy

This inventor holds 15 USPTO granted patents and 2 published patent applications, plus 3 CIPO patents and 1 EPO patent. Top assignees: The Perkin-Elmer Corporation, Sulzer Plasma Technik, Inc., Metco, Inc.. Active years: 1986-2025.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Subramaniam Rangaswamy. Retrieved from https://idiyas.com/inventor/subramaniam-rangaswamy

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

USPTO Granted Patents = 15 

% Patents Active = 100.0

 

 

Average Co-Inventor Count = 2.0

ph-index = 10

Forward Citations = 352(Granted Patents)


Location History:

  • Port Jefferson Station, NY (US) (1986 - 1989)
  • Stony Brook, NY (US) (1992 - 1993)
  • Rochester Hills, MI (US) (1993 - 2008)

Company Filing History:


Years Active: 1986-2025

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15 patents (USPTO):Explore Patents

Title: Innovator Subramaniam Rangaswamy: Pioneering Advancements in Braze Filler Metals and Composite Barrels

Introduction

Subramaniam Rangaswamy, based in Rochester Hills, MI, is a distinguished inventor whose contributions have led to 14 patents in various domains. His innovative advancements particularly focus on materials essential for high-temperature applications and improvements in manufacturing processes.

Latest Patents

Rangaswamy's recent patents include a groundbreaking invention of an iron-based braze filler metal designed for high-temperature applications. This innovative brazing filler metal composition features excellent wettability to nickel, cobalt, and iron-based metals, resulting in braze joints that exhibit high strength alongside remarkable heat and corrosion resistance. The unique formulation includes chromium, silicon, and phosphorus, with additional properties enhancing the bonding characteristics while maintaining cost-effectiveness suitable for manufacturing diverse heat exchangers and catalytic converters.

Another notable patent pertains to casting alloys and the method for making composite barrels utilized in extrusion and injection molding. The composite barrel comprises an outer housing with a cylindrical bore, enhanced by a wear-resistant lining made from a nickel or cobalt alloy. This lining is fabricated using centrifugal casting techniques, allowing for the production of durable and affordable components without the need for costly vacuum or argon atmospheres.

Career Highlights

Throughout his career, Subramaniam Rangaswamy has worked with notable organizations such as the Perkin-Elmer Corporation and Sulzer Plasma Technik, Inc. His roles in these companies involved extensive research and development, allowing him to apply his expertise in materials sciences and engineering.

Collaborations

Rangaswamy has collaborated with talented professionals in his field, including Robert A. Miller and John H. Harrington. These partnerships have played a vital role in enriching his research endeavors and fostering innovation in materials used for industrial applications.

Conclusion

Subramaniam Rangaswamy stands out as a key innovator in his field, with significant contributions reflected in his 14 patents. His work on iron-based braze filler metals and composite barrels showcases his commitment to developing advanced materials that meet modern manufacturing needs. His continued innovations are anticipated to pave the way for future advancements in the industry.

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]
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