Growing community of inventors

Richardson, TX, United States of America

David Halpin

Average Co-Inventor Count = 3.00

ph-index = 3

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 = 57

David HalpinFan Yu (4 patents)David HalpinDavid Spells (3 patents)David HalpinDelores Highsmith (1 patent)David HalpinDavid Halpin (4 patents)Fan YuFan Yu (12 patents)David SpellsDavid Spells (4 patents)Delores HighsmithDelores Highsmith (1 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Adobe, Inc. (3 from 6,898 patents)

2. Macromedia, Inc. (1 from 21 patents)


4 patents:

1. 8700994 - Layered master pages

2. 8020092 - Layered master pages

3. 7467351 - Layered master pages

4. 6771276 - Two-dimensional drawing environment utilizing perspective grids

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12/5/2025
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