Growing community of inventors

McMinnville, OR, United States of America

Douglas A Preston

Average Co-Inventor Count = 2.25

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 = 27

Douglas A PrestonMorgan T Johnson (2 patents)Douglas A PrestonSteven T Mayer (1 patent)Douglas A PrestonSeshasayee Varadarajan (1 patent)Douglas A PrestonDouglas A Preston (3 patents)Morgan T JohnsonMorgan T Johnson (57 patents)Steven T MayerSteven T Mayer (192 patents)Seshasayee VaradarajanSeshasayee Varadarajan (45 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Translarity, Inc. (2 from 10 patents)

2. Novellus Systems Incorporated (1 from 993 patents)


3 patents:

1. 9733272 - Designed asperity contactors, including nanospikes, for semiconductor test using a package, and associated systems and methods

2. 9494618 - Designed asperity contactors, including nanospikes, for semiconductor test using a package, and associated systems and methods

3. 7780867 - Edge bevel removal of copper from silicon wafers

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as of
12/28/2025
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