For the Inventor, By the Inventor

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Nacka Strand, Sweden

Grimaldi Development Ab

USPTO Granted Patents = 3

EPO Patents = 4

Trademarks = 1

Forward Citations = 1

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8 inventors (with patents filed for the assignee):

Christoph Erdmann (2 out of 11 patents)

Francesco Zitarosa (2 out of 12 patents)

Peter Franzén (2 out of 3 patents)

4. Claes Inge (2 out of 3 patents)

5. Carl Petrus Häggmark (2 out of 2 patents)

6. Petr Polednak (1 out of 2 patents)

7. Maximilian Birk (1 out of 1 patent)

8. Dan Öivind Karlsson (1 out of 1 patent)

9. Dan ÖIvind Karlsson (0 patent)

3 patents: Sort by Forward Citations

1. 12584429 - Engine crankcase ventilation system (2026-03-24),

2. 12076686 - Method and apparatus for cleaning an air flow from particles (2024-09-03),

3. 11660610 - Turbine and liquid separator having such a turbine (2023-05-30),

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USPTO Data Jan 1 1976 - Sep 15 2026

3 Patents

#7 in Nacka Strand

#1,598 in Sweden

Nacka Strand, Sweden

Grimaldi Development Ab

Forward Citations = 1

8 inventors:

Christoph Erdmann (2 out of 11 patents)

Francesco Zitarosa (2 out of 12 patents)

Peter Franzén (2 out of 3 patents)

4. Claes Inge (2 out of 3 patents)

5. Carl Petrus Häggmark (2 out of 2 patents)

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