Growing community of inventors

Heelsum, Netherlands

Jan De Jong

Average Co-Inventor Count = 1.00

ph-index = 2

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 = 10

Jan De JongJan De Jong (24 patents)
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Inventor’s number of patents
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Strength of working relationships

Company Filing History:

1. Gebr. Kolster B.v. (12 from 29 patents)

2. Kolster Holding Bv (7 from 58 patents)

3. Kolster Beheer B.v. (5 from 17 patents)

4. Floribreed Vof (1 from 1 patent)


24 patents:

1. PP36010 - plant named 'Kolmapinpos'

2. PP34523 - plant named 'KOLMAMOGO'

3. PP34497 - plant named 'KOLMASYWHI'

4. PP33230 - plant named 'KOLMPICA'

5. PP32753 - plant named 'Kolpeke'

6. PP26242 - plant named 'Kolmiglow'

7. PP24576 - plant named 'Kolmapuki'

8. PP21313 - plant named 'Kolmarest'

9. PP20932 - plant named 'Kolmaswet'

10. PP20931 - plant named 'Kolmcan'

11. PP20912 - plant named 'Kolmgala'

12. PP20631 - plant named 'Kolmawhi'

13. PP14911 - Hypericum plant named 'Kolmblac'

14. PP14562 - Hypericum plant named 'Kolmfir'

15. PP13554 - Hypericum plant named 'Kolmred'

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as of
12/20/2025
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