Fullerton, CA, United States of America

Oscar R Dufau

This inventor holds 12 USPTO granted patents. Top assignees: Fluidmaster, Inc., Graphic Controls Corporation, Other. Active years: 1982-1999.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Oscar R Dufau. Retrieved from https://idiyas.com/inventor/oscar-r-dufau

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 = 1.7

ph-index = 8

Forward Citations = 171(Granted Patents)


Company Filing History:


Years Active: 1982-1999

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12 patents (USPTO):Explore Patents

Title: The Ingenious Innovations of Oscar R. Dufau

Introduction

Oscar R. Dufau, an inventive mind based in Fullerton, California, has made significant contributions to the field of plumbing technology with a portfolio of 12 patents. His innovative approach has led to practical solutions that improve efficiency and functionality in everyday devices, particularly in toilet systems.

Latest Patents

Dufau’s latest patents showcase his commitment to enhancing plumbing systems. One of his key inventions is the **Adjustable Flush Valve**, which features a pivotable toilet flush valve member. This innovative design includes a float that can fill with water during flushing and close early, allowing users to adjust the amount of water used. The float is easily mounted, enabling low-friction rotation around a vertical axis. Additionally, the design incorporates a simple detent mechanism that maintains the float in any desired position for optimal water usage.

Another notable patent is the **Cleaner Injector System**, designed to dispense cleaning fluid solely into the toilet bowl. This device features a storage chamber for holding granules of a dissolving chemical and a transfer chamber that allows water to flow during each toilet flush. The anti-siphon mechanism ensures that cleaning fluid only migrates into the transfer chamber when necessary, providing a user-friendly solution for maintaining cleanliness in the toilet.

Career Highlights

Dufau has worked with notable companies, including Fluidmaster, Inc., where he was able to leverage his inventive skills to create practical and efficient plumbing solutions. His dedication to innovation has positioned him as a pioneer in this niche sector.

Collaborations

Throughout his career, Dufau has collaborated with esteemed professionals, including Adolf Schoepe and Kabir Siddiqui. These partnerships have fostered creative exchanges and enhanced the development of his innovative products.

Conclusion

Oscar R. Dufau's contributions to plumbing innovation highlight the importance of creativity and practical design in improving everyday technologies. With his numerous patents and collaborations, Dufau continues to make a significant impact in the industry, setting a standard for future inventors to follow. His work exemplifies how innovative solutions can lead to more efficient and sustainable usage of resources.

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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