Growing community of inventors

Palatine, IL, United States of America

David W Trahan

Average Co-Inventor Count = 3.00

ph-index = 2

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 = 67

David W TrahanMichael L Charlier (1 patent)David W TrahanRobert J Stinauer (1 patent)David W TrahanJohn A Kalenowsky (1 patent)David W TrahanJohn F Rojc (1 patent)David W TrahanDavid W Trahan (2 patents)Michael L CharlierMichael L Charlier (42 patents)Robert J StinauerRobert J Stinauer (9 patents)John A KalenowskyJohn A Kalenowsky (6 patents)John F RojcJohn F Rojc (2 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Motorola Corporation (2 from 20,290 patents)


2 patents:

1. 5420759 - Support assembly for card member having a memory element disposed

2. 5257414 - Apparatus for accepting and retaining a memory card

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as of
12/14/2025
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