Milwaukee, WI, United States of America

David J Schofield

This inventor holds 2 USPTO granted patents. Top assignee: Lamplight Farms, Inc.. Active years: 2005-2007.

IDiyas Innovation Intelligence. (2026). Inventor Profile: David J Schofield. Retrieved from https://idiyas.com/inventor/david-j-schofield-i2w36jma

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 = 1.3

ph-index = 2

Forward Citations = 17(Granted Patents)


Company Filing History:


Years Active: 2005-2007

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2 patents (USPTO):Explore Patents

Title: David J. Schofield and His Oil-Lamp Innovation.

Introduction

David J. Schofield is an inventor associated with Milwaukee, Wisconsin, and Lamplight Farms, Inc. His work includes an oil-lamp design that combines fuel storage, a movable burner tube, and a wick in a compact system. Schofield is credited with 2 patents.

Latest Patents

Schofield’s listed patent, “Oil Burning Lamps and Related Systems,” describes an oil-burning lamp with a reservoir for storing oil and a base shaped to receive the reservoir. A burner tube moves between retracted and extended positions. When retracted, both ends of the tube remain inside the reservoir; when extended, one end remains inside while the other projects outside.

An opening in the extended burner tube allows air to carry fragranced components from the oil and release them from the base. A wick mounted to the tube reaches into the reservoir and extends outward from the tube’s second end. The design brings together oil storage, burning, and fragrance dispersal in one lamp system.

Career Highlights

Schofield’s patent work reflects an interest in practical improvements to oil-burning lamps. The described mechanism uses a movable burner tube to support both a compact retracted configuration and an extended operating position.

Collaborations

Schofield is associated with Lamplight Farms, Inc. His listed coworker is Jerald J. Smith.

Conclusion

David J. Schofield’s oil-lamp invention combines a reservoir, movable burner tube, and wick to support both illumination and the release of fragranced oil components.

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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