Growing community of inventors

San Pedro, CA, United States of America

Philip W Crain

Average Co-Inventor Count = 2.35

ph-index = 6

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 = 135

Philip W CrainWilliam J Kelley (2 patents)Philip W CrainEugene Joseph Kilroy, Jr (2 patents)Philip W CrainJames Frank Woods (2 patents)Philip W CrainKeith Alan Hippely (1 patent)Philip W CrainEugene J Kilroy (1 patent)Philip W CrainOtto L Gabler (1 patent)Philip W CrainDaniel J Shoff (1 patent)Philip W CrainRaymond M St Pierre (1 patent)Philip W CrainJames E Morse (1 patent)Philip W CrainJames D Openshaw (1 patent)Philip W CrainPhilip W Crain (9 patents)William J KelleyWilliam J Kelley (34 patents)Eugene Joseph Kilroy, JrEugene Joseph Kilroy, Jr (2 patents)James Frank WoodsJames Frank Woods (2 patents)Keith Alan HippelyKeith Alan Hippely (39 patents)Eugene J KilroyEugene J Kilroy (6 patents)Otto L GablerOtto L Gabler (5 patents)Daniel J ShoffDaniel J Shoff (4 patents)Raymond M St PierreRaymond M St Pierre (4 patents)James E MorseJames E Morse (3 patents)James D OpenshawJames D Openshaw (1 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Mattel, Inc. (9 from 1,702 patents)


9 patents:

1. 4669657 - Toy train play setting with detachable storage building

2. 4575350 - Track for toy vehicles

3. 4504242 - Modular unit with toy vehicle propulsion device

4. 4366645 - Steering mechanism for toy vehicles

5. 4349983 - Playset for toy vehicles

6. 4249339 - Space toy

7. 4052813 - Animated toy

8. 4027424 - Multi-structure animated amusement device

9. 3992806 - Animated toy

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as of
12/13/2025
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