Concord, NH, United States of America

John B Duquette

This inventor holds 1 USPTO granted patent. Top assignee: Crathern Engineering Co., Inc.. Active years: 1989.

IDiyas Innovation Intelligence. (2026). Inventor Profile: John B Duquette. Retrieved from https://idiyas.com/inventor/john-b-duquette

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 = 1.0

ph-index = 1

Forward Citations = 4(Granted Patents)


Company Filing History:


Years Active: 1989

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1 patent (USPTO):Explore Patents

Title: John B. Duquette: Innovator of Fluid Consistency Regulating Pump

Introduction

John B. Duquette is a notable inventor based in Concord, New Hampshire, with a significant contribution to the field of fluid dynamics through his innovative patent. With a keen understanding of engineering principles, Duquette has created a system that enhances the control over the consistency of materials being pumped.

Latest Patents

Duquette holds one patent for a "Fluid Consistency Regulating Pump." This groundbreaking invention presents a sophisticated system designed to control the consistency of a material pumped from a reservoir. It achieves this by introducing an alterant into the material using a diaphragm-type pump that is driven by a double-acting air cylinder motor. The motor's operation is intricately controlled through a pilot-operated two-position, four-way air valve, which utilizes pressure differentials to maintain steady-state operation. This innovation allows for dynamic adjustments to the pump's operation based on the changing consistency of the material, ensuring optimal performance.

Career Highlights

Duquette's career is marked by his work at Crathern Engineering Co., Inc., where he has honed his engineering skills and developed his patent. His dedication to advancing fluid engineering technology has positioned him as a valued contributor in his field. The success of his patented invention reflects his ability to merge theoretical knowledge with practical application, showcasing his ingenuity as an inventor.

Collaborations

While specific collaborations may not be documented, Duquette's role at Crathern Engineering Co., Inc. implies an environment of teamwork and collective innovation. Engineers and inventors often collaborate on projects, and it is likely that Duquette has engaged with other professionals to refine and promote his innovative solutions.

Conclusion

John B. Duquette’s inventive spirit and commitment to engineering excellence have led to the creation of an essential tool for fluid consistency regulation. His patent, the Fluid Consistency Regulating Pump, not only represents a significant advancement in pumping technology but also highlights the impact of dedicated innovators in the field. As technologies continue to evolve, Duquette's contributions pave the way for future advancements in fluid dynamics and material handling.

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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