Growing community of inventors

Cranston, RI, United States of America

Thomas P Hamilton

Average Co-Inventor Count = 1.40

ph-index = 3

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 = 66

Thomas P HamiltonRalph A Beckman (1 patent)Thomas P HamiltonHenry D Sharpe, Iii (1 patent)Thomas P HamiltonStephen R Schwartz (1 patent)Thomas P HamiltonGrady Feren Hayes (1 patent)Thomas P HamiltonPaul Weingard (1 patent)Thomas P HamiltonThomas Mangiaratti (1 patent)Thomas P HamiltonBryan Thurston (1 patent)Thomas P HamiltonMichael Kent (1 patent)Thomas P HamiltonThomas P Hamilton (7 patents)Ralph A BeckmanRalph A Beckman (23 patents)Henry D Sharpe, IiiHenry D Sharpe, Iii (15 patents)Stephen R SchwartzStephen R Schwartz (14 patents)Grady Feren HayesGrady Feren Hayes (4 patents)Paul WeingardPaul Weingard (2 patents)Thomas MangiarattiThomas Mangiaratti (2 patents)Bryan ThurstonBryan Thurston (1 patent)Michael KentMichael Kent (1 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Hasbro, Inc. (6 from 497 patents)

2. Design Lab, LLC (1 from 9 patents)

3. Stephen Schwartz Design (1 from 2 patents)


7 patents:

1. 9688458 - Folding portable craft gun with storage for plunger rod

2. D578169 - Toy housing

3. 7282671 - Spatula device with integrally operable cooling chamber

4. D550385 - Light box

5. D391312 - Fanciful toy character assembly

6. D387098 - Fanciful toy vehicle assembly

7. 5512001 - Toy vehicle

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as of
1/5/2026
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