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Reseda, CA, United States of America

Robert G Lahr

Average Co-Inventor Count = 1.00

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 = 61

Robert G LahrRobert G Lahr (6 patents)
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Inventor’s number of patents
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Strength of working relationships

Company Filing History:

1. Ideal Toy Corporation (6 from 56 patents)


6 patents:

1. 4415157 - Two-way slotless road racing game

2. 4231183 - Differential gear drive

3. 4218846 - Lane changing toy car with unidirectional clutch and positive steering

4. 4156987 - Toy vehicle

5. 4125261 - Toy vehicle and toy vehicle game

6. 4078799 - Toy vehicle and toy vehicle game

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as of
12/29/2025
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