Growing community of inventors

Harlow, United Kingdom

Barbara Needham

Average Co-Inventor Count = 2.40

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 = 51

Barbara NeedhamWilliam A Crossland (1 patent)Barbara NeedhamPeter W Ross (1 patent)Barbara NeedhamJoseph H Morrissy (1 patent)Barbara NeedhamBarbara Needham (2 patents)William A CrosslandWilliam A Crossland (28 patents)Peter W RossPeter W Ross (10 patents)Joseph H MorrissyJoseph H Morrissy (6 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. International Standard Electric Corporation (2 from 747 patents)


2 patents:

1. 4589734 - Polychromatic liquid crystal display with reflective electrode pads

2. 4139273 - Method for preparing and operating a smectic liquid crystal display cell

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as of
12/25/2025
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