Growing community of inventors

Vancouver, Canada

Doug Manarin

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 = 89

Doug Manarin ↔ Emerson Richard Gallagher (1 patent)Doug Manarin ↔ Laura Kraft (1 patent)Doug Manarin ↔ Janice Blok (1 patent)Doug ManarinDoug Manarin (1 patent)Emerson Richard GallagherEmerson Richard Gallagher (15 patents)Laura KraftLaura Kraft (1 patent)Janice BlokJanice Blok (1 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Geer Products Ltd. (1 from 1 patent)


1 patent:

1. 6047979 - Wheelchair anti-tipping device

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as of
1/12/2026
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