Tucson, AZ, United States of America

Charles Semler

This inventor holds 1 USPTO granted patent. Top assignee: Barrick Gold Corporation. Active years: 1999.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Charles Semler. Retrieved from https://idiyas.com/inventor/charles-semler

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 = 4.0

ph-index = 1

Forward Citations = 6(Granted Patents)


Company Filing History:


Years Active: 1999

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1 patent (USPTO):Explore Patents

Title: Charles Semler: Innovator in Acid Resistant Cement Composition

Introduction

Charles Semler is a notable inventor based in Tucson, AZ (US). He has made significant contributions to the field of materials science, particularly in the development of cement compositions that withstand harsh acidic environments. His innovative approach has led to advancements that enhance the durability and service life of construction materials.

Latest Patents

Semler holds a patent for an acid resistant cement composition. This unique formulation includes an acid resistant particulate aggregate of fused mullite or other aggregate materials, combined with quartz and microsilica. The composition utilizes a colloidal silica sol binder and is notably free of sodium and potassium compounds, which can react with sulfuric acid to form alkali sulfates. This innovation is crucial for applications in environments where acidic conditions are prevalent, ensuring longevity and reliability.

Career Highlights

Charles Semler is currently employed at Barrick Gold Corporation, where he applies his expertise in materials science to enhance the company's operations. His work focuses on developing solutions that meet the demanding requirements of the mining industry, particularly in relation to construction and maintenance in acidic environments.

Collaborations

Throughout his career, Semler has collaborated with esteemed colleagues such as Thomas Hawisher and Herman J Pieterse. These partnerships have fostered a collaborative environment that encourages innovation and the sharing of ideas.

Conclusion

Charles Semler's contributions to the field of cement composition are invaluable, particularly in the context of acidic environments. His patent for acid resistant cement composition exemplifies his commitment to innovation and durability in construction materials.

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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