Growing community of inventors

Killarney Heights, Australia

David J Spencer

Average Co-Inventor Count = 3.00

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 = 8

David J Spencer ↔ Kevin M Higgins (1 patent)David J Spencer ↔ Chad Little (1 patent)David J SpencerDavid J Spencer (1 patent)Kevin M HigginsKevin M Higgins (218 patents)Chad LittleChad Little (4 patents)
..
Inventor’s number of patents
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Strength of working relationships

Company Filing History:

1. Igt (1 from 4,354 patents)


1 patent:

1. 9189921 - Progressive value tracking and publication in gaming systems

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12/8/2025
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