San Diego, CA, United States of America

Charles R Holdaway

This inventor holds 14 USPTO granted patents and 1 EPO patent. Top assignees: Alaris Medical Systems, Inc., Ivac Corporation, Situs Corporation. Active years: 1990-2004.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Charles R Holdaway. Retrieved from https://idiyas.com/inventor/charles-r-holdaway

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


% Patents Active = 85.7


Average Co-Inventor Count = 2.2

ph-index = 12

Forward Citations = 682(Granted Patents)


Company Filing History:


Years Active: 1990-2004

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14 patents (USPTO):Explore Patents

Title: The Innovations of Charles R. Holdaway

Introduction

Charles R. Holdaway, an accomplished inventor based in San Diego, CA, has made significant contributions to the field of engineering with a portfolio of 14 patents. His work focuses on enhancing efficiency and functionality in various technologies, particularly in motor control systems and medical devices.

Latest Patents

Among his latest patents, Holdaway has developed an innovative open-loop step motor control system. This system is designed to reduce noise and power requirements while ensuring optimal torque is provided. By employing a one-phase-on drive mode that modifies microstepping, Holdaway's design allows the motor to accelerate in a non-linear manner, achieving maximum speed smoothly. The design also features a modified full step waveform that enhances performance by adjusting the current flow across the motor windings, reducing operational noise.

In addition, Holdaway's patent for a medical instrument sheath comprising a flexible ultrasound transducer showcases his ability to intersect healthcare with technology. This ultrasound transducer is composed of a nonconductive sheath body that snugly houses a piezoelectric copolymer transducer, ensuring effective transduction of ultrasound signals into electrical signals. This invention highlights his commitment to advancing medical technology for improved patient care.

Career Highlights

Holdaway has had a noteworthy career, having worked with prestigious companies such as Alaris Medical Systems, Inc. and Ivac Corporation. His experience in these organizations has allowed him to refine his skills in innovation and technology implementation, particularly in the areas of medical devices and precision engineering.

Collaborations

Throughout his career, Holdaway has collaborated with talented individuals like Robert Dwaine Butterfield and Stephen A. Martin. These partnerships have fostered a creative environment conducive to impactful inventions and technological advancements.

Conclusion

Charles R. Holdaway exemplifies the spirit of innovation through his impressive contributions to motor control technology and medical devices. His dedication to improving efficiency and performance through his patents serves as an inspiration within the inventing community and beyond. As he continues to push the boundaries of technology, Holdaway leaves a lasting impact on both industry and healthcare.

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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