Minneapolis, MN, United States of America

Alfred D Carlson

This inventor holds 5 USPTO granted patents. Top assignee: Tennant Company. Active years: 1980-1984.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Alfred D Carlson. Retrieved from https://idiyas.com/inventor/alfred-d-carlson

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile


% Patents Active = 100.0

Average Co-Inventor Count = 3.2

ph-index = 5

Forward Citations = 158(Granted Patents)


Location History:

  • Minneapolis, MN (US) (1980 - 1983)
  • Robbinsdale, MN (US) (1984)

Company Filing History:


Years Active: 1980-1984

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5 patents (USPTO):Explore Patents

Title: Alfred D Carlson: Innovator in Floor Maintenance Technology

Introduction

Alfred D Carlson is a notable inventor based in Minneapolis, MN (US). He has made significant contributions to the field of floor maintenance technology, holding a total of 5 patents. His innovative designs have improved the efficiency and effectiveness of cleaning machines.

Latest Patents

One of his latest patents is a debris collecting mechanism designed for a combination sweeping, polishing, and scrubbing floor maintenance machine. This invention features a debris hopper that is removably positioned in a frame secured to the machine. The hopper has a rearward opening facing a pair of side-by-side disc tools, such as brushes, which rotate in the same direction. A conduit means is secured to the hopper, directing swept debris upwardly into the debris hopper. Additionally, a flexible member extends along the hopper opening to assist in debris collection. Blade members may also be included to guide debris into the central area of the machine's path of travel. Another significant invention is the combination sweeper-scrubber floor machine, which enhances the cleaning process.

Career Highlights

Alfred D Carlson is currently associated with Tennant Company, a leader in the cleaning equipment industry. His work has been instrumental in developing advanced cleaning solutions that cater to various commercial and industrial needs.

Collaborations

Throughout his career, Carlson has collaborated with talented individuals such as Ferdinand J Herpers, Jr and Harley E Kroll. These partnerships have fostered innovation and contributed to the success of his projects.

Conclusion

Alfred D Carlson's contributions to floor maintenance technology through his patents and collaborations have made a lasting impact in the industry. His innovative spirit continues to inspire advancements in cleaning solutions.

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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