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Hengelo, Netherlands

Ferdinand Lammertink

Average Co-Inventor Count = 1.00

ph-index = 3

The patent ph-index is calculated by counting the number of publications for which an author has been cited by other authors at least that same number of times.

Forward Citations = 21

Ferdinand LammertinkFerdinand Lammertink (5 patents)
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Inventor’s number of patents
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Strength of working relationships

Company Filing History:

1. Binary Arts Corporation (3 from 6 patents)

2. Other (1 from 832,718 patents)


5 patents:

1. 7168703 - Puzzle game incorporating a rotational element and methods of playing thereof

2. 5542673 - Intersecting manipulable puzzle

3. D368938 - Intersecting manipulable puzzle

4. 5172912 - Rotatable manipulable puzzle

5. 4871173 - Puzzle or game having token filled track and turntable

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as of
12/12/2025
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