Columbus, IN, United States of America

John C Kirchman

This inventor holds 1 USPTO granted patent. Top assignee: Cummins Engine Company, Inc.. Active years: 2001.

IDiyas Innovation Intelligence. (2026). Inventor Profile: John C Kirchman. Retrieved from https://idiyas.com/inventor/john-c-kirchman

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 = 13(Granted Patents)


Company Filing History:


Years Active: 2001

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1 patent (USPTO):Explore Patents

Title: Innovations of John C Kirchman

Introduction

John C Kirchman is an accomplished inventor based in Columbus, IN (US). He is known for his innovative contributions to engine technology, particularly in the area of lubricating oil systems. His work has significantly impacted the efficiency and functionality of engine operations.

Latest Patents

Kirchman holds a patent for an "Electronically controlled continuous lubricating oil replacement system." This invention presents an improved method and system for automatically and continuously removing an engine's used lubricating oil. It injects the used oil into the engine's fuel system based on engine operating conditions. The system includes a lube oil replacement pump that injects small amounts of used lube oil into the engine's fuel system while recycling controlled quantities of removed used oil back into the engine's lube oil system. The process periodically determines an engine operating severity value, such as fuel consumption, and calculates a baseline quantity of oil for injection based on the current fuel consumption during operation. This compact system maintains the oil concentration in the engine's fuel at an acceptable level.

Career Highlights

Kirchman is associated with Cummins Engine Company, Inc., where he has made significant contributions to engine technology. His innovative approach to lubricating oil systems has enhanced engine performance and efficiency.

Collaborations

Throughout his career, Kirchman has collaborated with notable colleagues, including Jerry L Marsh and David E Koeberlein. Their combined expertise has contributed to advancements in engine technology.

Conclusion

John C Kirchman's innovative work in engine lubricating oil systems exemplifies the impact of engineering advancements on automotive technology. His contributions continue to influence the industry and improve engine performance.

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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