Sykesville, MD, United States of America

Douglas L Lewis

This inventor holds 5 USPTO granted patents. Top assignees: Johns Hopkins University, Arbitron Inc., Other. Active years: 2002-2013.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Douglas L Lewis. Retrieved from https://idiyas.com/inventor/douglas-l-lewis

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


% Patents Active = 60.0

Average Co-Inventor Count = 3.2

ph-index = 4

Forward Citations = 206(Granted Patents)


Location History:

  • St. Paul Park, MN (US) (2002)
  • La Mesa, CA (US) (2004)
  • Sykesville, MD (US) (2007 - 2013)

Company Filing History:


Years Active: 2002-2013

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5 patents (USPTO):Explore Patents

Title: The Innovative Contributions of Douglas L Lewis

Introduction

Douglas L Lewis is a notable inventor based in Sykesville, MD (US), recognized for his significant contributions to technology through his innovative patents. With a total of 5 patents, Lewis has made strides in the fields of physiological detection and radio frequency systems.

Latest Patents

Among his latest patents is the "Apparatus and methods for remote detection of physiological changes." This invention features an apparatus for sensing motion, which includes a transmitter for transmitting a carrier signal and a frequency control to manage the frequency of that signal. The system utilizes two receivers to detect motion and generate corrective signals to maintain accuracy. Another significant patent is the "Radio frequency proximity detection and identification system and method." This system employs critical band encoding technology (CBET) and includes a portable people meter and a home base station. It utilizes radio frequency transmitters and receivers to modulate and transmit signals, ensuring effective communication within a predetermined range.

Career Highlights

Throughout his career, Douglas L Lewis has worked with esteemed institutions, including Johns Hopkins University. His work has focused on advancing technologies that enhance detection and identification systems, showcasing his commitment to innovation.

Collaborations

Lewis has collaborated with notable individuals such as Scott C Ecelberger and Paul R Schuster, contributing to the development of his groundbreaking technologies.

Conclusion

Douglas L Lewis's inventive spirit and dedication to technological advancement have led to significant contributions in his field. His patents reflect a deep understanding of complex systems and a commitment to improving detection technologies.

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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