Growing community of inventors

Portland, OR, United States of America

David A Head

Average Co-Inventor Count = 3.00

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 = 89

David A HeadDavid James Tasker (4 patents)David A HeadHenri Joseph Lezec (4 patents)David A HeadDavid J Tasker (0 patent)David A HeadHenri J Lezec (0 patent)David A HeadDavid A Head (4 patents)David James TaskerDavid James Tasker (13 patents)Henri Joseph LezecHenri Joseph Lezec (11 patents)David J TaskerDavid J Tasker (0 patent)Henri J LezecHenri J Lezec (0 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Fei Comapny (4 from 797 patents)


4 patents:

1. 8095231 - Graphical automated machine control and metrology

2. 7664566 - Graphical automated machine control and metrology

3. 7308334 - Graphical automated machine control and metrology

4. 6889113 - Graphical automated machine control and metrology

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as of
12/20/2025
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