Growing community of inventors

Ipswich, United Kingdom

Philip D Constantine

Average Co-Inventor Count = 2.00

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 = 4

Philip D ConstantineIan W Marshall (1 patent)Philip D ConstantinePhilip D Constantine (1 patent)Ian W MarshallIan W Marshall (13 patents)
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Inventor’s number of patents
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Strength of working relationships

Company Filing History:

1. British Telecommunications Public Limited Company (1 from 1,874 patents)


1 patent:

1. 5016965 - Optical package

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12/17/2025
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