Growing community of inventors

Minneapolis, MN, United States of America

Earl H Oliver

Average Co-Inventor Count = 1.55

ph-index = 4

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 = 205

Earl H OliverAlfred E Hall (2 patents)Earl H OliverJohn L Sigalos (2 patents)Earl H OliverJohn W Montgomery (1 patent)Earl H OliverEarl H Oliver (4 patents)Alfred E HallAlfred E Hall (10 patents)John L SigalosJohn L Sigalos (4 patents)John W MontgomeryJohn W Montgomery (6 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Other (3 from 832,812 patents)

2. Alfred E. Hall (1 from 1 patent)


4 patents:

1. 4915393 - Card game method

2. 4846480 - Card deck

3. 4703573 - Visual and audible activated work and method of forming same

4. 4656469 - Activated work and method of forming same

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as of
12/19/2025
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