St. Clair Shores, MI, United States of America

Lloyd R Chapman

This inventor holds 5 USPTO granted patents. Top assignee: Gm Global Technolgoy Operations, Inc.. Active years: 1981-1983.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Lloyd R Chapman. Retrieved from https://idiyas.com/inventor/lloyd-r-chapman-1va1s0py

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

Calculating rank

% Patents Active = 100.0

Average Co-Inventor Count = 2.0

ph-index = 5

Forward Citations = 153(Granted Patents)


Location History:

  • Powell, TN (US) (1982)
  • St. Clair Shores, MI (US) (1981 - 1983)

Company Filing History:


Years Active: 1981-1983

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5 patents (USPTO):Explore Patents

Title: Innovations by Lloyd R. Chapman

Introduction

Lloyd R. Chapman is a notable inventor based in St. Clair Shores, MI (US). He has made significant contributions to the field of automotive technology, particularly in the development of catalytic converter structures. With a total of 5 patents, his work has had a considerable impact on improving automotive exhaust gas treatment.

Latest Patents

One of his latest patents is a method for manufacturing a wound foil structure comprising distinct catalytic converter components. This innovative structure features a wound corrugated metal foil with gas passages defined by facing foil surfaces. One surface carries a platinum catalyst, while the opposing surface carries a palladium catalyst, allowing for the concurrent treatment of gases flowing through the converter. Another significant patent involves a method for preparing a metal foil composed of a ferritic stainless steel alloy, which is substantially covered by high aspect alumina whiskers. This method enhances the performance of the foil in catalytic converters, making it suitable for automotive exhaust gas treatment.

Career Highlights

Lloyd R. Chapman is currently associated with GM Global Technology Operations, Inc. His work at this company has allowed him to focus on innovative solutions for automotive applications. His patents reflect a deep understanding of materials science and engineering, particularly in the context of catalytic converters.

Collaborations

Throughout his career, Chapman has collaborated with notable colleagues, including John F. Watton and Charles W. Vigor. These collaborations have contributed to the advancement of technology in the automotive sector.

Conclusion

Lloyd R. Chapman is a distinguished inventor whose work has significantly influenced automotive technology. His innovative patents and collaborations demonstrate his commitment to improving automotive exhaust systems.

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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