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Nijkerk, Netherlands

Theodorus A Van't Zelfde

Average Co-Inventor Count = 3.00

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 = 61

Theodorus A Van't Zelfde ↔ Peter Marten Van Der Horst (1 patent)Theodorus A Van't Zelfde ↔ Brent Warren (1 patent)Theodorus A Van't ZelfdeTheodorus A Van't Zelfde (1 patent)Peter Marten Van Der HorstPeter Marten Van Der Horst (5 patents)Brent WarrenBrent Warren (3 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Akzo Nobel N.v. (1 from 1,248 patents)


1 patent:

1. 6281172 - Quaternary nitrogen containing amphoteric water soluble polymers and their use in drilling fluids

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12/16/2025
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