Growing community of inventors

Amsterdam, Netherlands

Alfred J Nijkerk

Average Co-Inventor Count = 2.18

ph-index = 4

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 = 33

Alfred J NijkerkJohanna M Vermeer (2 patents)Alfred J NijkerkJarig E Schram (1 patent)Alfred J NijkerkJohanna M P Vermeer (1 patent)Alfred J NijkerkSander J Sinot (1 patent)Alfred J NijkerkAlfred J Nijkerk (4 patents)Johanna M VermeerJohanna M Vermeer (2 patents)Jarig E SchramJarig E Schram (1 patent)Johanna M P VermeerJohanna M P Vermeer (1 patent)Sander J SinotSander J Sinot (1 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Pharmachemie B.v. (4 from 25 patents)


4 patents:

1. 6613767 - Stable aqueous folinate solution

2. 5320095 - Device for use with the inhalation of powdered materials contained in

3. 5177076 - Aqueous folinate solution stable at refrigerator temperature, as well as

4. 5104896 - Carboplatin composition

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as of
12/20/2025
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