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For the Inventor, By the Inventor

Vantaa, Finland

Marioff Corporation Oy


USPTO Granted Patents = 57

% Expired Patents = 33.3



Trademarks = 2

Forward Citations = 251

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39 inventors (with patents filed for the assignee):

goldMedal Göran Sundholm (16 out of 73 patents)

silverMedal Nazar Krutskevych (13 out of 16 patents)

bronzeMedal Harry Metzger (9 out of 10 patents)

4.  Arto Huotari (6 out of 9 patents)

5.  Goran Sundholm (5 out of 58 patents)

6.  Wojciech Zimny (5 out of 5 patents)

7.  Göran Sundholm (4 out of 13 patents)

8.  Jarmo Helasuo (3 out of 6 patents)

9.  Maarit Tuomisaari (3 out of 3 patents)

10.  Michael Kenneth Krager (2 out of 2 patents)

11.  Timo Mahlanen (2 out of 8 patents)

12.  Piotr Wolnowski (2 out of 7 patents)

13.  Mikolaj Jakub Sadek (2 out of 2 patents)

14.  Enrico Manes (1 out of 43 patents)

15.  Juha-Pekka Nikkarila (1 out of 1 patent)


Core Competencies:
Fire Suppression
Sprinkler Device
RFID Circuit
Water Mist Nozzle
Self-Diagnosis Sprinkler
Concealed Activation
Spraying Apparatus
Valve Assembly
Pop-Out Sprinkler
Preaction Sprinkler System
Fire Extinguishing Method
Combustion Engine Emissions

57 patents:

1. 12667743 - Fire suppression bulb device (2026-06-30),
2. 12599794 - Upright sprinkler and a sprinkler system (2026-04-14),
3. 12485304 - Fire suppression sprinkler device (2025-12-02),
4. 12268911 - Sprinkler bulb (2025-04-08),
5. 12251588 - Fire system (2025-03-18),
6. 12246204 - Sprinkler and sprinkler system including same (2025-03-11),
7. 12128433 - Pop-out sprinkler with vacuum actuated push-back (2024-10-29),
8. 12115401 - Fire sprinkler with remote release function (2024-10-15),
9. 12036431 - Crack detection function for a fire sprinkler with frangible bulb (2024-07-16),
10. 11890495 - Sprinkler bulb (2024-02-06),
11. 11745210 - Pop-out sprinkler with vacuum actuated push-back (2023-09-05),
12. 11738223 - Fire suppression system (2023-08-29),
13. 11730991 - Sprinkler self-diagnosis (2023-08-22),
14. 11364400 - Sprinkler head with a bulb having an embedded RFID circuit (2022-06-21),
15. 11241600 - Suppression unit, nozzle for suppression unit, and method (2022-02-08),
Marioff Corporation Oy is a global leader and innovator in high-pressure water mist fire protection technology. They specialize in providing high-quality, reliable, and efficient fire suppression systems for various industries and applications. With their expertise and advanced water mist technology, Marioff ensures the safety and protection of people, property, and the environment against fire hazards. Visit their website for more information and to explore their range of products and services.
This text is generated by artificial intelligence and may not be accurate.

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USPTO Data Jan 1 1976 - Sep 15 2026

Marioff Corporation Oy
57 Patents

#4 in Vantaa

#68 in Finland

#12,529 in the World

Vantaa, FI
Vantaa, Finland

Marioff Corporation Oy

Forward Citations = 251

39 inventors:

goldMedal Göran Sundholm (16 out of 73 patents)

silverMedal Nazar Krutskevych (13 out of 16 patents)

bronzeMedal Harry Metzger (9 out of 10 patents)

4.  Arto Huotari (6 out of 9 patents)

5.  Goran Sundholm (5 out of 58 patents)

Please report any incorrect information to [email protected]
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