Growing community of inventors

Chicago, IL, United States of America

Richard Rothkopf

Average Co-Inventor Count = 4.80

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 = 44

Richard RothkopfDonald E Toht (4 patents)Richard RothkopfK Dale Weathington (4 patents)Richard RothkopfGary D Aigner (2 patents)Richard RothkopfLisa Ellen Gelfond (2 patents)Richard RothkopfLin Ming Chuan Cindy (2 patents)Richard RothkopfMary Lenehan (2 patents)Richard RothkopfRichard Rothkopf (4 patents)Donald E TohtDonald E Toht (11 patents)K Dale WeathingtonK Dale Weathington (4 patents)Gary D AignerGary D Aigner (7 patents)Lisa Ellen GelfondLisa Ellen Gelfond (6 patents)Lin Ming Chuan CindyLin Ming Chuan Cindy (2 patents)Mary LenehanMary Lenehan (2 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Learning Curve International Inc. (4 from 11 patents)


4 patents:

1. 6648237 - Toy vehicle track segment and method of manufacturing a toy vehicle track segment

2. 6645031 - Playboard with collapsing easel

3. D481424 - Toy track segment

4. D477641 - Edges of supports for playboard with easel

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as of
1/3/2026
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