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Hoorn, Netherlands

Henricus G W Stemkens

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 = 16

Henricus G W StemkensHenricus G W Stemkens (69 patents)
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Inventor’s number of patents
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Strength of working relationships

Company Filing History:

1. Syngenta Seeds B.v. (63 from 222 patents)

2. Syngenta Crop Protection Ag (2 from 663 patents)

3. Syngenta Seed B. V. (2 from 4 patents)

4. Novartis Seeds B.v. (1 from 5 patents)

5. Novartis Seed B.v. (1 from 1 patent)


69 patents:

1. PP21441 - plant named 'Bludena'

2. PP21081 - plant named 'SCY'

3. PP20441 - plant named 'Cuped'

4. PP19467 - Verbena plant named 'Carmali'

5. PP19424 - Verbena plant named 'Poena'

6. PP19226 - Verbena plant named 'Redana'

7. PP18974 - Nemesia plant named 'Nemhmago'

8. PP18979 - Verbena plant named 'Raspena'

9. PP18838 - Diascia plant named 'Diasclaro'

10. PP18837 - Diascia plant named 'Diasupa'

11. PP18836 - Diascia plant named 'Divocrim'

12. PP18794 - Diascia plant named 'Divorang'

13. PP18797 - Verbena plant named 'Scarletta'

14. PP18781 - Verbena plant named 'Ipinena'

15. PP18775 - Verbena plant named 'Iplilena'

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as of
9/9/2025
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