Laguna, Philippines

Francisco De Guia

This inventor holds 2 USPTO granted patents. Top assignees: Littelfuse, Inc., Littlefuse, Inc.. Active years: 2015-2016.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Francisco De Guia. Retrieved from https://idiyas.com/inventor/francisco-de-guia

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 = 3.7

ph-index = 2

Forward Citations = 4(Granted Patents)


Company Filing History:


Years Active: 2015-2016

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2 patents (USPTO):Explore Patents

Title: Francisco De Guia: Fuse and Circuit-Protection Inventions.

Introduction

Francisco De Guia is an inventor associated with Laguna, Philippines. His work includes inventions in fuse design and circuit protection, and he is credited with 2 patents.

Latest Patents

“Fuse Providing Overcurrent and Thermal Protection” describes a fuse with two leads connected by a fuse element. Made from material with a melting point below 250°C, the element can melt in response to either a predetermined current or a predetermined temperature, providing both overcurrent and thermal protection. A body houses the element and portions of the leads.

“Double Wound Fusible Element and Associated Fuse” presents a fusible element designed to withstand high surge currents from inductive and capacitive loads. It uses an insulated core, a first wire wound along the core, and a second wire wound substantially orthogonally around the first wire.

Career Highlights

De Guia’s listed company affiliations include Littelfuse, Inc. The two inventions reflect a focus on fuse components designed to address different circuit-protection needs, including thermal response and surge-current resistance.

Collaborations

His listed coworkers include Bienvenido Salonga and Stephen J. Whitney.

Conclusion

Francisco De Guia’s patent work centers on fuse designs that combine protective functions and improve resilience to electrical surges.

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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