This inventor holds 1 USPTO granted patent. Top assignee: The United States of America as Represented by the Secretary of. Active years: 1980.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile
Company Filing History:
Years Active: 1980
Title: David H. Smith, Jr.: Inventor of a Rotating Field Plot Row Marker.
Introduction
David H. Smith, Jr. is an inventor associated with East Lansing, Michigan. His patent describes a rotating row marker designed to help create a precise planting grid in soil.
Latest Patents
Smith is credited with one patent: “Rotating Field Plot Row Marker.” The device uses transverse and longitudinal projections to imprint a grid pattern into the soil, helping guide the placement of seeds or seedlings during a later planting operation. An eccentric weight housed in one transverse projection uses gravity to return the marker to a predetermined position when it is lifted above the ground.
Career Highlights
Smith’s listed patent is assigned to the United States of America, as represented by the Secretary of Agriculture. The invention addresses the practical challenge of marking consistent planting positions in field plots.
Collaborations
Smith’s listed coworkers include Brian L. Doyle and James A. Webster.
Conclusion
David H. Smith, Jr.’s patented row marker combines soil-imprinting projections with a gravity-assisted return mechanism to support accurate, repeatable planting layouts.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile