Growing community of inventors

Topsfield, MA, United States of America

David J Twiss

Average Co-Inventor Count = 8.00

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 = 3

David J Twiss ↔ Frank Sinclair (1 patent)David J Twiss ↔ Craig Richard Chaney (1 patent)David J Twiss ↔ Alexander S Perel (1 patent)David J Twiss ↔ Wilhelm P Platow (1 patent)David J Twiss ↔ Eric R Cobb (1 patent)David J Twiss ↔ Chris Campbell (1 patent)David J Twiss ↔ John Bon-Woong Koo (1 patent)David J TwissDavid J Twiss (1 patent)Frank SinclairFrank Sinclair (136 patents)Craig Richard ChaneyCraig Richard Chaney (45 patents)Alexander S PerelAlexander S Perel (35 patents)Wilhelm P PlatowWilhelm P Platow (24 patents)Eric R CobbEric R Cobb (13 patents)Chris CampbellChris Campbell (4 patents)John Bon-Woong KooJohn Bon-Woong Koo (1 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Varian Semiconductor Equipment Associates, Inc. (1 from 916 patents)


1 patent:

1. 8263944 - Directional gas injection for an ion source cathode assembly

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12/25/2025
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