Phoenix, AZ, United States of America

Robert MacDonald

This inventor holds 1 USPTO granted patent. Top assignee: Brasscraft Manufacturing Company. Active years: 1986.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Robert MacDonald. Retrieved from https://idiyas.com/inventor/robert-macdonald-220q23u1

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 = 5.0

ph-index = 1

Forward Citations = 19(Granted Patents)


Company Filing History:


Years Active: 1986

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1 patent (USPTO):Explore Patents

Title: The Innovative Contributions of Robert MacDonald

Introduction

Robert MacDonald is a notable inventor based in Phoenix, AZ. He has made significant contributions to the field of valve technology. His innovative designs have led to the development of a unique valve that enhances functionality and efficiency.

Latest Patents

MacDonald holds a patent for a three-piece angle stop valve. This valve comprises a valve body, a resilient control sleeve, and a handle, eliminating the need for separate fastening or sealing elements. The inlet line pressure biases the side walls of the control sleeve and a circumferential sealing flap into sealing engagement with the valve bore, effectively preventing leakage. The handle is secured to the valve body by resilient formations that snap into a circumferential groove on the valve body. The handle rotates the control sleeve through telescoping splines, and several circumferential and axial reinforcing ribs are formed on the interior of the control sleeve.

Career Highlights

MacDonald is currently associated with Brasscraft Manufacturing Company, where he continues to innovate and improve valve designs. His work has been instrumental in advancing the technology used in plumbing and fluid control systems.

Collaborations

Some of his notable coworkers include Larry G Turner and Leo S Stanish, who have also contributed to various projects within the company.

Conclusion

Robert MacDonald’s inventive spirit and dedication to improving valve technology have made a lasting impact in his field. His patent for the angle stop valve exemplifies his commitment to innovation and efficiency.

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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