Growing community of inventors

Manchester, United Kingdom

Donald K Howard

Average Co-Inventor Count = 3.00

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

Donald K Howard ↔ Michael A Finan (1 patent)Donald K Howard ↔ Michael J Lees (1 patent)Donald K HowardDonald K Howard (1 patent)Michael A FinanMichael A Finan (10 patents)Michael J LeesMichael J Lees (2 patents)
..
Inventor’s number of patents
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Strength of working relationships

Company Filing History:

1. Ciba-geigy Corporation (1 from 6,850 patents)


1 patent:

1. 4559214 - Particulate calcium carbonate

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as of
12/17/2025
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