Clarksville, MD, United States of America

John L Kolbe

This inventor holds 1 USPTO granted patent. Top assignee: Other. Active years: 1978.

IDiyas Innovation Intelligence. (2026). Inventor Profile: John L Kolbe. Retrieved from https://idiyas.com/inventor/john-l-kolbe

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 = 5.0

ph-index = 1

Forward Citations = 11(Granted Patents)


Company Filing History:

goldMedal1 out of 834,659 
Other
 patents

Years Active: 1978

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1 patent (USPTO):Explore Patents

Title: The Innovative Contributions of John L Kolbe

Introduction

John L Kolbe is a notable inventor based in Clarksville, MD (US). He has made significant contributions to the field of hydrometallurgy, particularly in the recovery of copper from sulfide ores. His innovative approach has led to the development of a unique process that enhances the efficiency of copper extraction.

Latest Patents

John L Kolbe holds a patent for a process titled "Acid ferric sulfate leaching of copper sulfide concentrates." This invention outlines a method for hydrometallurgically recovering copper from chalcopyrite and other sulfide ores. The process involves a pretreatment step of fine grinding the concentrates to a particle size of one micron or less. The finely ground copper concentrate is then subjected to leaching in an acidified ferric sulfate solution, allowing for effective copper recovery. Following the leaching step, solid-liquid separation is performed, and elemental sulfur can be recovered. Additionally, iron removal is achieved through the crystallization of iron salts, with ferrous ion being oxidized to ferric ion for recycling.

Career Highlights

Throughout his career, John L Kolbe has demonstrated a commitment to advancing metallurgical processes. His innovative patent reflects his expertise and dedication to improving copper recovery methods. His work has implications for the mining and metallurgy industries, providing a more efficient way to extract valuable resources.

Collaborations

John L Kolbe has collaborated with notable colleagues, including John A Herbst and Jan D Miller. These partnerships have likely contributed to the development and refinement of his innovative processes.

Conclusion

John L Kolbe's contributions to the field of hydrometallurgy, particularly through his patented process for copper recovery, highlight his role as an influential inventor. His work continues to impact the industry, showcasing the importance of innovation in resource extraction.

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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