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Hoorn, Netherlands

Henricus G Stemkens

Average Co-Inventor Count = 1.00

ph-index = 1

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 = 1

Henricus G StemkensHenricus G Stemkens (11 patents)
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Inventor’s number of patents
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Strength of working relationships

Company Filing History:

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

2. S&g Seeds B.v. (4 from 4 patents)

3. Novartis Ag (3 from 3,923 patents)


11 patents:

1. PP11231 - Verbena plant named `Morena`

2. PP11197 - Verbena plant named `Silvena`

3. PP11192 - Verbena plant named `Mylena`

4. PP11180 - Verbena plant named `Perlena`

5. PP11134 - Verbena plant named `Charmena`

6. PP11101 - Verbena plant named `Luxena`

7. PP11095 - Verbena plant named `Florena`

8. PP9813 - Germanium plant named `Sanwhite`

9. PP9801 - Geranium plant named `Sanblotch`

10. PP9802 - Geranium plant named `Sanlilac`

11. PP9803 - Geranium plant named `Sanred`

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as of
12/20/2025
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