St. Louis, MO, United States of America

Alexander M Cornwell, Jr

This inventor holds 5 USPTO granted patents. Top assignee: Jackes-Evans Manufacturing Company. Active years: 1976-1981.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Alexander M Cornwell, Jr. Retrieved from https://idiyas.com/inventor/alexander-m-cornwell-jr

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

Calculating rank

% Patents Active = 100.0

Average Co-Inventor Count = 1.3

ph-index = 3

Forward Citations = 37(Granted Patents)


Company Filing History:


Years Active: 1976-1981

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5 patents (USPTO):Explore Patents

Title: Alexander M Cornwell, Jr: Innovator in Mailbox Technology

Introduction

Alexander M Cornwell, Jr. is a notable inventor based in St. Louis, MO (US). He has made significant contributions to mailbox technology, holding a total of 5 patents. His innovative designs focus on enhancing the functionality and aesthetics of mailboxes.

Latest Patents

One of his latest inventions is a mailbox signal and door handle device. This invention features a mailbox gang apparatus that utilizes the construction of a mailbox as an inherent structural component. This design achieves uniformity in mailbox appearance while providing greater strength and permanency. The apparatus includes two horizontal rows of mailboxes mounted one upon the other, affixed at both the upper and lower portions to form an integral beam-type structure of substantial strength. To facilitate this ganging, the mailboxes are modified to include a new flagging system that alerts the mailman of outgoing mail. The flag system, affixed to the door of the box, includes a panel that is rotated to disclose a flag indication and is automatically reset upon opening the box. The mailbox door is also modified to facilitate the mounting of the flag and includes a novel latch device, all while maintaining a pleasing appearance.

Career Highlights

Cornwell is associated with Jackes-Evans Manufacturing Company, where he continues to innovate in mailbox design. His work has significantly impacted the industry, providing practical solutions that enhance user experience.

Collaborations

He collaborates with Joseph N Miller, contributing to the development of advanced mailbox technologies.

Conclusion

Alexander M Cornwell, Jr. is a distinguished inventor whose work in mailbox technology exemplifies innovation and practicality. His contributions continue to shape the future of mailbox design and functionality.

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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