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Bartlett, IL, United States of America

John A Popadiuk, Jr

Average Co-Inventor Count = 1.17

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 = 522

John A Popadiuk, JrJohn W Skalon (2 patents)John A Popadiuk, JrJohn A Popadiuk, Jr (7 patents)John W SkalonJohn W Skalon (12 patents)
..
Inventor’s number of patents
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Strength of working relationships

Company Filing History:

1. Williams Electronics Games, Inc. (4 from 91 patents)

2. Other (2 from 832,718 patents)


7 patents:

1. 9919202 - Pinball game truss system

2. 9707471 - Display for a pinball game

3. D689557 - Pinball machine cabinet

4. 6047962 - Amusement game with pinball playfield and combined flipper/four-way

5. 6000697 - Display for a pinball game

6. 5944309 - Illuminable ramp assembly for a pinball game

7. D408366 - Combined flipper switch and four-way switch

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as of
12/13/2025
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