Growing community of inventors

Newark, DE, United States of America

Lap-Tap Andrew Cheng

Average Co-Inventor Count = 4.00

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 = 2

Lap-Tap Andrew ChengDavid Herbert Roach (1 patent)Lap-Tap Andrew ChengRobert Joseph Bouchard (1 patent)Lap-Tap Andrew ChengJohn Gerard Lavin (1 patent)Lap-Tap Andrew ChengLap-Tap Andrew Cheng (1 patent)David Herbert RoachDavid Herbert Roach (17 patents)Robert Joseph BouchardRobert Joseph Bouchard (15 patents)John Gerard LavinJohn Gerard Lavin (8 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. E.i. Dupont De Nemours and Company (1 from 16,338 patents)


1 patent:

1. 8529798 - Process for improving the emission of electron field emitters

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1/8/2026
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