Growing community of inventors

San Diego, CA, United States of America

John C Helfrick

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

John C Helfrick ↔ Steven L Webb (1 patent)John C Helfrick ↔ John L Stoffel, Jr (1 patent)John C Helfrick ↔ Silke Courtenay (1 patent)John C HelfrickJohn C Helfrick (1 patent)Steven L WebbSteven L Webb (40 patents)John L Stoffel, JrJohn L Stoffel, Jr (32 patents)Silke CourtenaySilke Courtenay (21 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Hewlett-packard Development Company, L.P. (1 from 27,412 patents)


1 patent:

1. 9127407 - Sizing composition

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as of
12/25/2025
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