Issaquah, WA, United States of America

Donald W Hapke

This inventor holds 6 USPTO granted patents. Top assignees: The Boeing Company, Aeritalia. Active years: 1977-1984.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Donald W Hapke. Retrieved from https://idiyas.com/inventor/donald-w-hapke

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 = 1.0

ph-index = 5

Forward Citations = 126(Granted Patents)


Company Filing History:


Years Active: 1977-1984

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6 patents (USPTO):Explore Patents

Title: The Innovative Contributions of Donald W Hapke

Introduction

Donald W Hapke, an accomplished inventor based in Issaquah, Washington, has made significant contributions to aerospace technology. With a total of six patents to his name, his groundbreaking work has had a notable impact on the design and efficiency of jet propulsion systems.

Latest Patents

Among his latest inventions is the "Deployable Inlet for Aeroplane Center Boost Engine." This innovative design is tailored for use in jet-propelled aircraft that utilize a center boost engine. It effectively aerodynamically fairs the air inlet located at the leading edge of the vertical stabilizer when the center boost engine is inactive, thereby minimizing drag. The construction features inlet doors that seal the inlet and align with the skin surface of the vertical stabilizer to ensure a smooth aerodynamic profile. The ability for these doors to pivot outward to form the inlet's geometry allows for seamless integration without the need for extra structural space.

Hapke has also developed a "Jet Engine Two Dimensional, Asymmetric Afterburner Nozzle." This nozzle is notable for its low profile and straightforward construction. It is designed to be mounted on a jet engine, sparing crucial structural space within the airfoil’s wing spar. The nozzle enables a minimized angle for visual line-of-sight from the airfoil's trailing edge into the nozzle while maintained in its cruising position. This feature significantly enhances the aerodynamic efficiency of jet engines.

Career Highlights

Donald W Hapke has had the opportunity to work with prestigious companies in the aerospace sector. Notably, he has contributed his expertise at The Boeing Company, a leader in aviation innovation, as well as Aeritalia, a well-respected aerospace manufacturer. His diverse experiences at these companies have further honed his skills and shaped his inventive approach.

Collaborations

Throughout his career, Hapke’s collaborative efforts with industry leaders have facilitated advancements in aerospace engineering. His work at renowned organizations has allowed him to leverage shared knowledge and resources to push the boundaries of innovation in jet propulsion technology.

Conclusion

With a focus on enhancing aircraft performance through innovative design, Donald W Hapke represents the forefront of aerospace invention. His patents are a testament to his commitment to excellence, ensuring that his contributions will continue to influence the aviation industry for years to come.

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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