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'S Gravenzande, Netherlands

Nicolaas Middelburg

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 = 0

Nicolaas MiddelburgNicolaas Middelburg (6 patents)
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Inventor’s number of patents
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Strength of working relationships

Company Filing History:

1. Middelburg B.v. (3 from 3 patents)

2. Chrysanthemum Breeders Association N.v. (2 from 180 patents)

3. Middleburg, B.v. (1 from 1 patent)


6 patents:

1. PP4402 - Chrysanthemum

2. PP4287 - Chrysanthemum

3. PP4288 - Chrysanthemum

4. PP4269 - Chrysanthemum

5. PP4270 - Chrysanthemum

6. PP4240 - Chrysanthemum

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as of
12/20/2025
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