Solon, OH, United States of America

Donald K Ratcliffe

This inventor holds 1 USPTO granted patent. Top assignee: Other. Active years: 1995.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Donald K Ratcliffe. Retrieved from https://idiyas.com/inventor/donald-k-ratcliffe

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 = 3.0

ph-index = 1

Forward Citations = 14(Granted Patents)


Company Filing History:

goldMedal1 out of 834,708 
Other
 patents

Years Active: 1995

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1 patent (USPTO):Explore Patents

Title: The Innovative Contributions of Donald K Ratcliffe

Introduction

Donald K Ratcliffe is an accomplished inventor based in Solon, OH (US). He has made significant contributions to the field of materials engineering, particularly in the design of crucibles for melting furnaces. His innovative approach has led to the development of a unique crucible assembly that enhances the efficiency and effectiveness of induction melting processes.

Latest Patents

One of Ratcliffe's notable patents is the "Quick change crucible for vacuum melting furnace." This invention features a crucible assembly that utilizes an inner crucible made of partially stabilized zirconia and an outer support member constructed from sintered alumina. The design includes a cylindrical shape with a closed bottom wall, where the inner crucible and outer support member are separated by a layer of porous ceramic fibers composed of alumina and silica. This configuration allows for thermal expansion and contraction while minimizing stress on the inner crucible, thereby providing additional strength and support.

Career Highlights

Throughout his career, Ratcliffe has demonstrated a commitment to innovation and excellence in his field. His work on the quick change crucible has not only advanced the technology used in melting furnaces but has also contributed to improved safety and efficiency in industrial applications. With 1 patent to his name, Ratcliffe continues to be a valuable asset in the engineering community.

Collaborations

Ratcliffe has collaborated with several talented individuals in his field, including John A Kaniuk and Crispino DiRuggiero. These partnerships have fostered a creative environment that encourages the exchange of ideas and the development of groundbreaking technologies.

Conclusion

Donald K Ratcliffe's innovative spirit and dedication to engineering have led to significant advancements in the design of crucibles for melting furnaces. His contributions continue to impact the industry positively, showcasing the importance of innovation in engineering.

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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