Company Filing History:
1 out of 6,615 
1 out of 470 
Years Active: 2011
Title: Douglas R Peirce: Innovator in Agricultural and Drilling Technologies
Introduction
Douglas R Peirce is a notable inventor based in Pleasant Hill, IA (US). He has made significant contributions to the fields of agricultural machinery and horizontal directional drilling. With a total of 2 patents, his work reflects a commitment to innovation and efficiency in these industries.
Latest Patents
One of Peirce's latest patents is for a combine harvester and associated method for selectively gathering grain test data. This invention provides a novel combine harvester equipped with a grain diverting assembly. The assembly is designed to divert grain from the harvesting path to a testing path, allowing for the collection of grain test data. The tested grain can be returned to the harvesting path for further delivery to a primary grain hopper. Additionally, the invention includes a sampling cup and sample delivery system that automatically gathers and delivers samples to the operator's location.
Another significant patent by Peirce involves devices and methods for power control in horizontal directional drilling. This invention focuses on controlling pump power draw from an engine in drilling operations. It includes a horizontal directional drilling machine that utilizes an engine to output mechanical energy. The machine comprises various pumps that operate based on the engine's energy output, along with control circuitry that calculates and manages the power draw to optimize performance.
Career Highlights
Throughout his career, Douglas R Peirce has worked with prominent companies such as Pioneer Hi-Bred International, Inc. and Vermeer Manufacturing Company, Inc. His experience in these organizations has contributed to his expertise in developing innovative solutions in agricultural and drilling technologies.
Collaborations
Peirce has collaborated with notable coworkers, including Ty T Luellen and Lyndon J Schroeder. These partnerships have likely fostered a creative environment that encourages the development of groundbreaking inventions.
Conclusion
Douglas R Peirce stands out as an inventor whose work has significantly impacted agricultural machinery and drilling technologies. His innovative patents demonstrate a dedication to improving efficiency and functionality in these fields.