Growing community of inventors

Alkmaar, Netherlands

Ernst Jan Siewers

Average Co-Inventor Count = 5.08

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

Ernst Jan SiewersGuy Robert Babbitt (2 patents)Ernst Jan SiewersNicholas Paul Echter (2 patents)Ernst Jan SiewersAndrew Timothy Maxey (2 patents)Ernst Jan SiewersFrank Emile Wubbolts (2 patents)Ernst Jan SiewersDaniela Oana Trambitas (2 patents)Ernst Jan SiewersRolf Sebastiaan Wilms (2 patents)Ernst Jan SiewersStuart Parker (2 patents)Ernst Jan SiewersCynthia Akkermans (2 patents)Ernst Jan SiewersTjerk De Vries (2 patents)Ernst Jan SiewersHarald Chrobaczek (1 patent)Ernst Jan SiewersDaniela Oana Trambitas (1 patent)Ernst Jan SiewersGünther Tschida (1 patent)Ernst Jan SiewersTanja Refle (1 patent)Ernst Jan SiewersDaniela Oana Trambitas (1 patent)Ernst Jan SiewersErnst Jan Siewers (5 patents)Guy Robert BabbittGuy Robert Babbitt (30 patents)Nicholas Paul EchterNicholas Paul Echter (10 patents)Andrew Timothy MaxeyAndrew Timothy Maxey (9 patents)Frank Emile WubboltsFrank Emile Wubbolts (6 patents)Daniela Oana TrambitasDaniela Oana Trambitas (3 patents)Rolf Sebastiaan WilmsRolf Sebastiaan Wilms (2 patents)Stuart ParkerStuart Parker (2 patents)Cynthia AkkermansCynthia Akkermans (2 patents)Tjerk De VriesTjerk De Vries (2 patents)Harald ChrobaczekHarald Chrobaczek (28 patents)Daniela Oana TrambitasDaniela Oana Trambitas (1 patent)Günther TschidaGünther Tschida (1 patent)Tanja RefleTanja Refle (1 patent)Daniela Oana TrambitasDaniela Oana Trambitas (2 patents)
..
Inventor’s number of patents
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Strength of working relationships

Company Filing History:

1. Upfield US Inc. (2 from 5 patents)

2. Co2nexus, Inc. (2 from 3 patents)

3. Huntsman Textile Effects (germany) Gmbh (1 from 12 patents)

4. Feyecon Development & Implementation B.v. (5 patents)

5. Unilever Plc (4 patents)


5 patents:

1. 10463053 - Dispersion structuring agent

2. 10064418 - Dispersion structuring agent

3. 9752273 - Barrier densified fluid cleaning system

4. 9518355 - Processes and compositions for dyeing or finishing fibrous materials

5. 9091017 - Barrier densified fluid cleaning system

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as of
1/4/2026
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