Saint Paul, MN, United States of America

Douglas A Puariea

This inventor holds 4 USPTO granted patents. Top assignee: The Maxson Corporation. Active years: 1978-1981.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Douglas A Puariea. Retrieved from https://idiyas.com/inventor/douglas-a-puariea

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 = 1.4

ph-index = 2

Forward Citations = 28(Granted Patents)


Company Filing History:


Years Active: 1978-1981

Loading Chart...
4 patents (USPTO):Explore Patents

Title: Innovations of Douglas A Puariea

Introduction

Douglas A Puariea is an accomplished inventor based in Saint Paul, MN (US). He has made significant contributions to the field of railroad technology, holding a total of four patents. His innovative designs focus on enhancing the functionality and efficiency of rail cars.

Latest Patents

Among his latest patents is the "Rail Car Door Linkage," which features a door linkage for a side dump railroad car. This design allows the door to automatically lower on the low side of the car when the car body is tilted to dump its contents. Another notable patent is the "Side Dumping Railroad Car," which utilizes hydraulic cylinders at each end of the car to facilitate tilting. This design includes an engagement lug that is hydraulically slid into place to determine the direction of tilt.

Career Highlights

Douglas A Puariea is currently employed at The Maxson Corporation, where he continues to innovate in the field of railroad technology. His work has contributed to advancements that improve the safety and efficiency of rail operations.

Collaborations

Throughout his career, Puariea has collaborated with notable colleagues, including Richard W Hackbarth and Philip J Kramlinger. These partnerships have fostered a creative environment that encourages the development of groundbreaking technologies.

Conclusion

Douglas A Puariea's contributions to railroad technology through his patents and collaborations highlight his role as a significant inventor in the industry. His innovative designs continue to influence the efficiency and safety of rail transport.

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]
Loading…