Vandalia, OH, United States of America

Charles D Eifert

This inventor holds 1 USPTO granted patent. Top assignee: Gm Global Technolgoy Operations, Inc.. Active years: 1996.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Charles D Eifert. Retrieved from https://idiyas.com/inventor/charles-d-eifert

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 = 8(Granted Patents)


Company Filing History:


Years Active: 1996

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1 patent (USPTO):Explore Patents

Title: Charles D. Eifert and the Compression Lower Preloaded Ball Joint

Introduction

Charles D. Eifert is an inventor associated with Vandalia, Ohio, and GM Global Technology Operations, Inc. His recorded patent concerns a preloaded ball joint designed to maintain a tight connection and indicate when wear makes replacement necessary.

Latest Patents

Eifert’s listed patent is “Compression Lower Preloaded Ball Joint.” It describes a ball pivotally mounted in a socket, with a spring positioned between the stud’s post and the bearing. The spring preloads the components, helping keep the joint tight as it wears. Once wear reaches a predetermined amount, the design provides a positive indication that the joint needs replacement. Eifert is credited with 1 patent in the information provided.

Career Highlights

Eifert’s documented innovation addresses durability and maintenance in a mechanical joint. By making wear more apparent, the design aims to help identify when the ball joint should be replaced.

Collaborations

Eifert is associated with GM Global Technology Operations, Inc. His listed coworkers include Douglas M. Brademeyer and Patrick H. Fullenkamp.

Conclusion

Charles D. Eifert’s patent presents a practical approach to ball-joint preload and wear indication, connecting his recorded inventive work with automotive technology.

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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