Growing community of inventors

Norwalk, CT, United States of America

David William Callan

Average Co-Inventor Count = 4.80

ph-index = 2

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 = 9

David William CallanHarmen Klaas Van Der Schoot (1 patent)David William CallanSven Antoin Johan Hol (1 patent)David William CallanHernes Jacobs (1 patent)David William CallanHuibert Visser (1 patent)David William CallanRobert-Han Munnig Schmidt (1 patent)David William CallanRobert Johannes Petrus Van Diesen (1 patent)David William CallanPiet Vosters (1 patent)David William CallanGeorge Howard Robbins (1 patent)David William CallanDavid William Callan (2 patents)Harmen Klaas Van Der SchootHarmen Klaas Van Der Schoot (43 patents)Sven Antoin Johan HolSven Antoin Johan Hol (38 patents)Hernes JacobsHernes Jacobs (36 patents)Huibert VisserHuibert Visser (28 patents)Robert-Han Munnig SchmidtRobert-Han Munnig Schmidt (20 patents)Robert Johannes Petrus Van DiesenRobert Johannes Petrus Van Diesen (3 patents)Piet VostersPiet Vosters (1 patent)George Howard RobbinsGeorge Howard Robbins (1 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Asml Netherlands B.v. (2 from 4,892 patents)

2. Asml Holding N.v. (1 from 618 patents)


2 patents:

1. 7714305 - Lithographic apparatus and device manufacturing method

2. 6879377 - Lithographic apparatus and device manufacturing method

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12/25/2025
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