Growing community of inventors

Royston, United Kingdom

Ann Kathleen Keep

Average Co-Inventor Count = 4.00

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 = 0

Ann Kathleen Keep ↔ Simon Collard (1 patent)Ann Kathleen Keep ↔ Richard David Ellis (1 patent)Ann Kathleen Keep ↔ Penelope Ann Chaloner (1 patent)Ann Kathleen KeepAnn Kathleen Keep (1 patent)Simon CollardSimon Collard (2 patents)Richard David EllisRichard David Ellis (1 patent)Penelope Ann ChalonerPenelope Ann Chaloner (1 patent)
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Inventor’s number of patents
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Strength of working relationships

Company Filing History:

1. Johnson Matthey Public Limited Company (1 from 835 patents)


1 patent:

1. 6323370 - Catalytic process

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as of
12/17/2025
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