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For the Inventor, By the Inventor

Bristol, IN, United States of America

John W Kuhn

This inventor holds 11 USPTO granted patents. Top assignee: Cmi International, Inc.. Active years: 1993-1994.

IDiyas Innovation Intelligence. (2026). Inventor Profile: John W Kuhn. Retrieved from https://idiyas.com/inventor/john-w-kuhn

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

USPTO Granted Patents = 11

% Patents Active = 100.0

Average Co-Inventor Count = 1.8

ph-index = 7

Forward Citations = 69(Granted Patents)


Company Filing History:

goldMedal11 out of 47 
 
Cmi International, Inc.
 patents

Years Active: 1993-1994

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11 patents (USPTO):Explore Patents
1. 5361823 - Casting core and method for cast-in-place attachment of a cylinder liner (1994-11-08),
2. 5280820 - Method for metallurgically bonding cylinder liners to a cylinder block (1994-01-25),
3. 5234046 - Method of eliminating shrinkage porosity defects in the formation of (1993-08-10),
4. 5232041 - Method for metallurgically bonding cast-in-place cylinder liners to a (1993-08-03),
5. 5217059 - Casting core and method for forming a water jacket chamber within a cast (1993-06-08),
6. 5215141 - Apparatus and method for controlling the countergravity casting of (1993-06-01),
7. 5213149 - Mold and method for making variable thickness cast articles (1993-05-25),
8. 5205346 - Method and apparatus for countergravity casting molten metal (1993-04-27),
9. 5201357 - Method for forming cored passageways within cast metal articles (1993-04-13),
10. 5179994 - Method of eliminating porosity defects within aluminum cylinder blocks (1993-01-19),
11. 5178203 - Apparatus for the countergravity casting of metals (1993-01-12),

Title: Innovations by John W. Kuhn

Introduction

John W. Kuhn is a notable inventor based in Bristol, Indiana, with a remarkable portfolio of 11 patents. His work primarily focuses on advancements in the field of internal combustion engines, showcasing his expertise and innovative spirit.

Latest Patents

Among his latest patents, one significant invention is the "Casting core and method for cast-in-place attachment of a cylinder liner." This invention involves a decomposable casting core that is formed in-situ with a sleeve-like liner member, which is mounted within the mold cavity of a cylinder block casting mold. This innovative design ensures that the liner member is securely positioned during the casting process. Another notable patent is the "Method for metallurgically bonding cylinder liners to a cylinder block." This method details a process for cleaning cylinder liners and coating their outer surfaces with a low melting point cooling material, such as molten zinc, to create a metallurgical bond with the cylinder block material.

Career Highlights

John W. Kuhn has made significant contributions to the field of engineering through his inventive work at CMI International, Inc. His patents reflect a deep understanding of materials and processes that enhance the performance and reliability of engine components.

Collaborations

Throughout his career, Kuhn has collaborated with esteemed colleagues, including Richard J. Wylie and Thomas E. Prucha, further enriching his innovative endeavors.

Conclusion

John W. Kuhn's contributions to the field of engine technology through his patents demonstrate his commitment to innovation and excellence. His work continues to influence advancements in internal combustion engine design and manufacturing.

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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