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Hawthorne, CA, United States of America

Robert M Del Principe

Average Co-Inventor Count = 2.14

ph-index = 5

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 = 172

Robert M Del PrincipeEdward Mayer (1 patent)Robert M Del PrincipePeter A Oliphant (1 patent)Robert M Del PrincipeDavid A Reichert (1 patent)Robert M Del PrincipeJohn Y Ling (1 patent)Robert M Del PrincipeWilliam L Bernstein (1 patent)Robert M Del PrincipeDavid A Hostetler (1 patent)Robert M Del PrincipeRobert M Del Principe (5 patents)Edward MayerEdward Mayer (11 patents)Peter A OliphantPeter A Oliphant (3 patents)David A ReichertDavid A Reichert (2 patents)John Y LingJohn Y Ling (2 patents)William L BernsteinWilliam L Bernstein (1 patent)David A HostetlerDavid A Hostetler (1 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Mattel, Inc. (5 from 1,702 patents)


5 patents:

1. 4422639 - Electronic football game

2. 4403777 - Electronic game using phototransducer

3. 4372557 - Electronic baseball game

4. D266935 - Housing for electronic game

5. 4314336 - Electronic card game simulator

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as of
12/12/2025
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