Seattle, WA, United States of America

Stephen R Barnes

This inventor holds 5 USPTO granted patents and 1 published patent application. Top assignee: Lawrence Medical Systems, Inc.. Active years: 1985-1989.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Stephen R Barnes. Retrieved from https://idiyas.com/inventor/stephen-r-barnes

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

USPTO Granted Patents = 5 

% Patents Active = 100.0

Average Co-Inventor Count = 2.4

ph-index = 4

Forward Citations = 522(Granted Patents)


Company Filing History:


Years Active: 1985-1989

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5 patents (USPTO):Explore Patents

Title: The Innovative Contributions of Stephen R. Barnes in Cardiac Monitoring

Introduction

Stephen R. Barnes is a notable inventor based in Seattle, WA, who has made significant strides in the field of cardiac monitoring. With a total of five patents to his name, Barnes has developed groundbreaking methods and devices that enhance the accuracy and efficiency of cardiac output measurement, ultimately contributing to better patient care.

Latest Patents

Barnes’ latest patents include innovative methodologies and apparatuses designed to monitor cardiac output effectively. One of his notable inventions describes a method that involves measuring the systolic velocity of blood flowing through the patient's descending aorta. This is combined with determining the cross-sectional area of the ascending aorta to calculate the cardiac output. An important aspect of this patent is the ability to convert the cardiac output into cardiac index and systemic vascular resistance based on the patient's body surface area and blood pressure.

Another significant patent is the development of noninvasive ultrasonic probes tailored to insonify the ascending aorta of supine or reclining patients. This probe integrates transducers that both insonify and intercept doppler-shifted energy reflected from the surrounding aorta walls and the blood flow. The unique design of the probe head minimizes discomfort during use, allowing healthcare professionals to easily maneuver and align the ultrasonic energy beam with the patient's anatomy.

Career Highlights

Stephen R. Barnes is associated with Lawrence Medical Systems, Inc., a company recognized for its innovative contributions to the medical technology sector. His work in developing advanced diagnostic tools reflects his commitment to improving healthcare outcomes through technological innovation.

Collaborations

Throughout his career, Barnes has collaborated with esteemed professionals in the field, including Lee L. Huntsman and Richard S. Leard. These collaborations have fostered a creative environment, allowing for the exchange of ideas and development of cutting-edge solutions in cardiac health management.

Conclusion

Stephen R. Barnes stands out as a prominent inventor in the medical technology landscape. His contributions, particularly in the realm of cardiac output monitoring, showcase his dedication to advancing healthcare technology. With a focus on noninvasive methods, he continues to influence the development of tools that enhance patient care and diagnostic accuracy.

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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