Growing community of inventors

Manchester, United Kingdom

Roy Alan Kirk

Average Co-Inventor Count = 6.46

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 = 9

Roy Alan Kirk ↔ Michael Heneghan (2 patents)Roy Alan Kirk ↔ John Whitworth (2 patents)Roy Alan Kirk ↔ John Barry Henshall (2 patents)Roy Alan Kirk ↔ James Philip Taylor (2 patents)Roy Alan Kirk ↔ Robert M O'Neil (1 patent)Roy Alan Kirk ↔ Ian Antony Dearden (1 patent)Roy Alan Kirk ↔ Jonathon Gawtrey (1 patent)Roy Alan KirkRoy Alan Kirk (2 patents)Michael HeneghanMichael Heneghan (11 patents)John WhitworthJohn Whitworth (10 patents)John Barry HenshallJohn Barry Henshall (10 patents)James Philip TaylorJames Philip Taylor (8 patents)Robert M O'NeilRobert M O'Neil (22 patents)Ian Antony DeardenIan Antony Dearden (2 patents)Jonathon GawtreyJonathon Gawtrey (1 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Ciba Specialty Chemicals Corporation (2 from 1,524 patents)


2 patents:

1. 6624117 - Heat sensitive recording material

2. 6071853 - Crystalline fluoran compound

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as of
12/29/2025
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