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Broendby, Denmark

Nilfisk A/s

USPTO Granted Patents = 33

% Expired Patents = 9.1

EPO Patents = 36

Trademarks = 13

Forward Citations = 108

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66 inventors (with patents filed for the assignee):

Kipp Knutson (4 out of 4 patents)

Stuart McDonald (4 out of 4 patents)

Stephen Klopp (4 out of 4 patents)

4. Donald Joseph Legatt (4 out of 26 patents)

5. David Wood (4 out of 16 patents)

6. Richard Morgan Hickmott (3 out of 26 patents)

7. Dave Wood (3 out of 3 patents)

8. John Black (3 out of 16 patents)

9. Henrik Jeppesen (3 out of 13 patents)

10. Peter Noehr Larsen (2 out of 2 patents)

11. Martin Walters Schmidt (2 out of 2 patents)

12. Giancarlo Vetrucci (2 out of 2 patents)

13. Alfonso Colletti (2 out of 2 patents)

14. Henrik Mathiassen (2 out of 2 patents)

15. Steen Klimt Johannesen (2 out of 2 patents)

33 patents: Sort by Forward Citations

1. 12605027 - Squeegee assembly with improved waste pick-up (2026-04-21),

2. 12478240 - Method of controlling a robotic floor cleaning machine (2025-11-25),

3. 12471748 - Debris basket indicator system (2025-11-18),

4. 12396611 - High-dump hopper for floor cleaning machine and method for cleaning a floor (2025-08-26),

5. D1071408 - Frame for high-pressure cleaner (2025-04-14),

6. 11953907 - Autonomous surface treatment vehicle with fast wall mode (2024-04-09),

7. 11707172 - Dirt collecting device for a cleaning device, particularly a sweeping vehicle, and vacuum cleaner nozzle for a vacuum cleaner, and method for operating both devices (2023-07-25),

8. 11432698 - Mobile robotic cleaner (2022-09-06),

9. 11357379 - Fluid manifolds for floor cleaning machine (2022-06-14),

10. 11311161 - Dirt collecting device for a cleaning device, particularly a sweeping vehicle, and vacuum cleaner nozzle for a vacuum cleaner, and method for operating both devices (2022-04-26),

11. 11174607 - Apparatus for collecting garbage and debris for a motor-sweeper (2021-11-16),

12. 11083357 - Water trailing detection system (2021-08-10),

13. 10874270 - Motor housing with silencer for a vacuum cleaning device (2020-12-29),

14. 10674882 - Adapter plate (2020-06-09),

15. 10596502 - Filter element and dirt suction device with filter receptacle for such a filter element (2020-03-24),

Nilfisk A/S is a global leading provider of professional cleaning equipment and solutions. With over 110 years of experience, Nilfisk offers a wide range of innovative products that effectively clean and maintain floors, surfaces, and environments. Our solutions are trusted in industries such as agriculture, automotive, construction, healthcare, hospitality, manufacturing, and more. We are committed to delivering sustainable cleaning solutions that improve efficiency, productivity, and safety for our customers worldwide.

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

Company Badge

USPTO Data Jan 1 1976 - Sep 22 2026

33 Patents

#1 in Broendby

#95 in Denmark

#20,094 in the World

Broendby, Denmark

Nilfisk A/s

Forward Citations = 108

66 inventors:

Kipp Knutson (4 out of 4 patents)

Stuart McDonald (4 out of 4 patents)

Stephen Klopp (4 out of 4 patents)

4. Donald Joseph Legatt (4 out of 26 patents)

5. David Wood (4 out of 16 patents)

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