Bobcat Compact Loader Inventors Inducted Into National Inventors Hall of Fame

Cyril and Louis Keller Recognized During Illumination and Induction Ceremonies in Washington, D.C.

Cyril and Louis Keller, the brothers who invented the world’s first compact loader (later named the Bobcat® skid-steer loader), have formally been inducted into the National Inventors Hall of Fame (NIHF). The Keller brothers were posthumously recognized during the NIHF Illumination and Induction Ceremonies held Oct. 25-26 in Washington, D.C.

NIHF annually recognizes inventors, promotes creativity and advances the spirit of innovation and entrepreneurship. Bobcat representatives, along with members of the Keller family, were in attendance to celebrate this achievement.

“The ingenuity of the Keller brothers spurred the compact equipment industry,” said Mike Ballweber, president, Doosan Bobcat North America. “Today at Bobcat, their spirit of inventiveness lives on, as our organization continues to innovate for the jobsite of the future and empower our customers to accomplish more.”

The Illumination Ceremony at the National Inventors Hall of Fame Museum was celebrated Oct. 25 in Alexandria, VA. New inductees or their family members placed their names on illuminated hexagons in the museum’s Gallery of Icons. Members of the Keller family represented Cyril and Louis in this symbolic ceremony.

The 2023 National Inventors Hall of Fame Induction Ceremony was held Oct. 26 at The Anthem in Washington, D.C., where the new Inductee class was honored for its contributions to society.

Joe Keller, son of Louis, said, “If Dad and Cyril were here to accept this award, they would accept it for all the early and current Bobcat employees that have all helped bring the little Keller loader to be the Bobcat machine it is today. There is no one that the Bobcat loader hasn’t affected or helped through life—even though they may not know it.”

Inventing an Industry

In the 1950s, brothers Cyril (1922- 2020) and Louis (1923-2010) operated a small machinist-blacksmith shop in Minnesota, building and repairing machinery for local farmers. A farmer approached them with a need for a self-propelled loader light enough to be lifted to the second floor of a turkey barn and small enough to clean around the barn’s upright poles. In 1957, the Kellers built a three-wheeled loader with two drive wheels in front and a caster wheel in the rear – the precursor to the modern skid-steer loader.

The loader came to the attention of Melroe Manufacturing Company (now Bobcat Company), which was awarded exclusive manufacturing rights to the machine on a royalty basis. Melroe hired the Kellers to refine the design and put the machine into production.

To improve the design of the loader, a second set of drive wheels was added to the back of the loader in 1960. With four-wheel drive, the M400 became the world’s first true skid-steer loader. “Skid-steer” describes the unique steering system that enables the machine to turn within its own length. Later, the Bobcat brand name was established because of the machine’s toughness, quickness and agility.

Commemorating its History

In celebration of this recognition, Bobcat has its history on display in a new exhibit within the NIHF Museum. The museum exhibit features one of the Keller brothers’ original three-wheel loaders, along with a timeline of Bobcat’s history and a video display highlighting various aspects of Bobcat’s products, people and initiatives.

The Bobcat exhibit will be on display through April 2024.

Learn more about the history of Bobcat.

Media Resources: For photos from the Illumination and Induction Ceremonies, please visit this Dropbox link.

About Bobcat Company

Since 1958, Bobcat Company has been empowering people to accomplish more. As a leading global manufacturer of compact equipment, Bobcat has a proud legacy of innovation and a reputation based on delivering smart solutions to customers’ toughest challenges. Backed by the support of a worldwide network of independent dealers and distributors, Bobcat offers an extensive line of compact equipment, including loaders, excavators, compact tractors, utility products, telehandlers, mowers, attachments, implements, parts, and services. In 2024, Bobcat will expand its brand with the addition of portable power, industrial air, industrial vehicle and turf renovation equipment offerings. Headquartered in West Fargo, North Dakota, Bobcat continues to lead the industry with its new and innovative offerings.

The Bobcat brand is owned by Doosan Bobcat, Inc., a company within the Doosan Group. Committed to empowering people to accomplish more, Doosan Bobcat is dedicated to building stronger communities and a better tomorrow.

About the National Inventors Hall of Fame

The National Inventors Hall of Fame is the premier nonprofit organization in America dedicated to recognizing inventors and inventions, promoting creativity, and advancing the spirit of innovation and entrepreneurship. Founded in 1973 in partnership with the United States Patent and Trademark Office, NIHF is committed to not only honoring the individuals whose inventions have made the world a better place, but to ensuring American ingenuity continues to thrive in the hands of coming generations through its national, hands-on educational programming and collegiate competitions focused on the exploration of science, technology, engineering and mathematics. For more information, visit invent.org. To nominate an inventor for Induction, visit invent.org/nominate.

©2023 Bobcat Company. All rights reserved.

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