Growing community of inventors

Mount Joy, PA, United States of America

John E Holden

Average Co-Inventor Count = 1.58

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 = 50

John E HoldenFred Daniel Eddins (1 patent)John E HoldenJack S Lovewell (1 patent)John E HoldenJoseph R Perez (1 patent)John E HoldenRichard W Kimbrough (1 patent)John E HoldenBrian S Prodger (1 patent)John E HoldenRobert L Carignan (1 patent)John E HoldenRobert L Carignan (1 patent)John E HoldenTimothy Effler (1 patent)John E HoldenJohn E Holden (7 patents)Fred Daniel EddinsFred Daniel Eddins (25 patents)Jack S LovewellJack S Lovewell (7 patents)Joseph R PerezJoseph R Perez (6 patents)Richard W KimbroughRichard W Kimbrough (6 patents)Brian S ProdgerBrian S Prodger (2 patents)Robert L CarignanRobert L Carignan (1 patent)Robert L CarignanRobert L Carignan (1 patent)Timothy EfflerTimothy Effler (1 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Other (2 from 832,761 patents)

2. Hasbro Development Corporation (2 from 12 patents)


7 patents:

1. D295426 - Bathtub toy

2. D278163 - Toy take-apart engine

3. 4450650 - Action play toy

4. D254381 - Toy boat

5. 4062144 - Flexible doll having arm members pivotable to plural stable positions

6. 4018002 - Toy simulating a walking animal

7. 3955429 - Inertia motor vehicle

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as of
12/17/2025
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