For the Inventor, By the Inventor

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Eden Prairie, MN, United States of America

Tennant Company

USPTO Granted Patents = 265

EPO Patents = 50

Trademarks = 53

Forward Citations = 6,275

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199 inventors (with patents filed for the assignee):

Bruce F Field (51 out of 56 patents)

Michael Thomas Basham (18 out of 18 patents)

Robert A Geyer (14 out of 14 patents)

4. Robert Erko (12 out of 27 patents)

5. John C Ickes (11 out of 15 patents)

6. Daniel Lawrence Joynt (11 out of 12 patents)

7. Kevin Leroy Shinler (11 out of 14 patents)

8. Michael L Blehert (11 out of 11 patents)

9. Steven L Boomgaarden (10 out of 10 patents)

10. Warren L Larson (9 out of 10 patents)

11. Ronald W Lehman (9 out of 9 patents)

12. Patrick Jerome Gronlund (9 out of 21 patents)

13. Larry David Wydra (9 out of 10 patents)

14. Michael Steward Wilmo (9 out of 14 patents)

15. Gregory J Engel (8 out of 9 patents)

Core Competencies:

Surface Maintenance Machines

Cleaning Solution Generation

Interchangeable Scrub Brushes

Performance Measurement Systems

Mobile Cleaning Vehicles

Electrolytic Cells

Nanobubble Treatment Systems

Dynamic Maintenance Scheduling

Waste Removal Systems

Touch-Free Attachment Technology

High Pressure Cleaning Methods

Compact Cleaning Mechanisms

265 patents: Sort by Forward Citations

1. 12414667 - Application of cleaning solution on a surface maintenance machine (2025-09-16),

2. 12209609 - Torque transmitting ball joint (2025-01-28),

3. 11859795 - Surface maintenance machine light projection (2024-01-02),

4. 11730331 - Sweeper/scrubber system capable of handling large debris (2023-08-22),

5. 11697137 - Mobile surface maintenance machine with an onboard pressure washer (2023-07-11),

6. 11224998 - Thread forming apparatus and method for rotationally molded product (2022-01-18),

7. D938118 - Interchangeable scrub brush or scrub pad for a floor maintenance vehicle (2021-12-07),

8. 11154175 - Surface maintenance machine with removable storage (2021-10-26),

9. 10885768 - Systems and methods for measuring performance of site maintenance (2021-01-05),

10. 10881260 - Surface maintenance machine with a quick alignment mechanism for a cleaning tool (2021-01-05),

11. 10765286 - Surface maintenance machine (2020-09-08),

12. 10683220 - Liquid treatment systems and methods (2020-06-16),

13. 10610077 - Surface maintenance machine with a quick eject cleaning tool assembly (2020-04-07),

14. 10595697 - Surface maintenance machine with skirting to allow particulate pickup (2020-03-24),

15. 10470637 - Surface maintenance machine with an auxiliary waste removal system (2019-11-12),

Tennant Company is a leading manufacturer of cleaning solutions and technologies. With a rich history that spans over 150 years, Tennant is dedicated to creating sustainable, innovative cleaning solutions for a wide range of applications. Their products are designed to improve cleanliness, safety, and sustainability in industries such as retail, healthcare, education, and industrial manufacturing. Tennant's commitment to excellence and customer satisfaction has made them a trusted name in the cleaning industry.

This text is generated by artificial intelligence and may not be accurate.

Company Badge

USPTO Data Jan 1 1976 - Dec 30 2025

265 Patents

#8 in Eden Prairie, MN

#42 in Minnesota

#1,564 in US

#3,204 in the World

Eden Prairie, MN, United States of America

Tennant Company

Forward Citations = 6,275

199 inventors:

Bruce F Field (51 out of 56 patents)

Michael Thomas Basham (18 out of 18 patents)

Robert A Geyer (14 out of 14 patents)

4. Robert Erko (12 out of 27 patents)

5. John C Ickes (11 out of 15 patents)

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