Ann Arbor, MI, United States of America

James L Lignell

This inventor holds 1 USPTO granted patent. Top assignee: Xenex Corporation. Active years: 1976.

IDiyas Innovation Intelligence. (2026). Inventor Profile: James L Lignell. Retrieved from https://idiyas.com/inventor/james-l-lignell

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 = 2.0

ph-index = 1

Forward Citations = 87(Granted Patents)


Company Filing History:


Years Active: 1976

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1 patent (USPTO):Explore Patents

Title: The Innovations of James L. Lignell

Introduction

James L. Lignell is an accomplished inventor based in Ann Arbor, MI. He is known for his innovative contributions to presence sensing systems. His work focuses on utilizing beams of radiant energy to detect the presence of individuals or objects within designated spaces.

Latest Patents

Lignell holds a patent for a "Presence Detecting System with Self-Checking." This invention enhances the reliability of presence sensing systems by incorporating self-checking mechanisms. These mechanisms ensure that the detection system operates correctly, providing a higher level of assurance in its functionality.

Career Highlights

Lignell is associated with Xenex Corporation, where he applies his expertise in developing advanced sensing technologies. His work has significantly impacted the field of presence detection, making systems more efficient and reliable.

Collaborations

One of Lignell's notable collaborators is George L. Schofield, Jr. Their partnership has contributed to the advancement of innovative technologies in their field.

Conclusion

James L. Lignell's contributions to presence sensing technology exemplify the importance of innovation in enhancing system reliability. His work continues to influence the development of advanced detection 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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