Los Altos Hills, CA, United States of America

Catherine C Johnson

This inventor holds 1 USPTO granted patent. Top assignee: The United States of America as Represented by the Administrator of the. Active years: 1980.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Catherine C Johnson. Retrieved from https://idiyas.com/inventor/catherine-c-johnson

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 = 2.0

ph-index = 1

Forward Citations = 10(Granted Patents)


Company Filing History:


Years Active: 1980

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1 patent (USPTO):Explore Patents

Title: The Innovative Contributions of Catherine C Johnson

Introduction

Catherine C Johnson is a notable inventor based in Los Altos Hills, CA (US). She has made significant contributions to the field of water purification through her innovative work on polymeric membranes. Her dedication to advancing technology in this area has led to the development of a unique patent that addresses critical challenges in water treatment.

Latest Patents

Catherine holds a patent for a "Reverse osmosis membrane of high urea rejection properties." This invention involves the preparation of polymeric membranes suitable for reverse osmosis water purification. These membranes exhibit high urea and salt rejection properties, achieved by generating a plasma of an unsaturated hydrocarbon monomer and nitrogen gas from an electrical source. The polymeric membrane is formed by depositing a polymer of the unsaturated monomer from the plasma onto a substrate, incorporating nitrogen from the nitrogen gas in a chemically combined form.

Career Highlights

Catherine's career is marked by her commitment to innovation and excellence in the field of water purification. Her work has not only contributed to advancements in technology but has also addressed pressing environmental concerns related to water quality.

Collaborations

Catherine has collaborated with Theodore J Wydeven, further enhancing her research and development efforts in the field. Their partnership exemplifies the importance of teamwork in driving innovation.

Conclusion

Catherine C Johnson's contributions to the field of water purification through her patented technology demonstrate her role as a leading inventor. Her work continues to inspire advancements in environmental technology and water treatment solutions.

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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