Growing community of inventors

Portland, OR, United States of America

John M Ennis

Average Co-Inventor Count = 3.27

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 = 14

John M Ennis ↔ Wesley R Schalk (1 patent)John M Ennis ↔ Michael D Derocher (1 patent)John M Ennis ↔ Michael V Leman (1 patent)John M Ennis ↔ Ki Jung Han (1 patent)John M Ennis ↔ Jeremy E Barribeau (1 patent)John M Ennis ↔ Kai Halsinger (1 patent)John M Ennis ↔ Robert Moser (1 patent)John M Ennis ↔ Benjamin D Coughlin (1 patent)John M Ennis ↔ Ryan W Barnes (1 patent)John M EnnisJohn M Ennis (3 patents)Wesley R SchalkWesley R Schalk (90 patents)Michael D DerocherMichael D Derocher (70 patents)Michael V LemanMichael V Leman (65 patents)Ki Jung HanKi Jung Han (18 patents)Jeremy E BarribeauJeremy E Barribeau (8 patents)Kai HalsingerKai Halsinger (6 patents)Robert MoserRobert Moser (2 patents)Benjamin D CoughlinBenjamin D Coughlin (2 patents)Ryan W BarnesRyan W Barnes (1 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Hewlett-Packard Development Company, L.p. (3 from 27,442 patents)


3 patents:

1. 11607848 - Indicating materials within material cartridges

2. D882651 - Printer

3. D870781 - 3D printer

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as of
1/16/2026
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