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Temecula, CA, United States of America

Steve Castle

Average Co-Inventor Count = 7.00

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 = 67

Steve CastleEric Joseph Johnson (2 patents)Steve CastleW Wistar Rhoads (2 patents)Steve CastleFrank Drogo (2 patents)Steve CastleEric Stephen Mattis (2 patents)Steve CastlePaul E Martinson (2 patents)Steve CastleJohn Ferraro (2 patents)Steve CastleSteve Castle (2 patents)Eric Joseph JohnsonEric Joseph Johnson (29 patents)W Wistar RhoadsW Wistar Rhoads (19 patents)Frank DrogoFrank Drogo (10 patents)Eric Stephen MattisEric Stephen Mattis (10 patents)Paul E MartinsonPaul E Martinson (5 patents)John FerraroJohn Ferraro (3 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Hewlett-Packard Development Company, L.p. (1 from 27,442 patents)

2. Hewlett-Packard Company (1 from 9,639 patents)


2 patents:

1. 6913338 - Servicing system for an inkjet printhead

2. 5905514 - Servicing system for an inkjet printhead

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as of
1/19/2026
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