Growing community of inventors

Frisco, TX, United States of America

David John Lacey

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 = 0

David John LaceyNathan Dirk Zelle (1 patent)David John LaceyDavid John Lacey (1 patent)Nathan Dirk ZelleNathan Dirk Zelle (7 patents)
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Inventor’s number of patents
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Strength of working relationships

Company Filing History:

1. Hewlett-Packard Development Company, L.p. (1 from 27,431 patents)


1 patent:

1. 7739654 - Model curation for integrated circuit designs

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1/7/2026
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