Average Co-Inventor Count = 3.14
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.
Company Filing History:
1. Marvin Glass & Associates (3 from 422 patents)
2. Meyer/glass Design, Ltd. (2 from 16 patents)
3. The Ohio Art Company (1 from 16 patents)
4. S. R. Mickelberg Company, Inc. (1 from 8 patents)
7 patents:
1. 5779552 - Illusory liquid apparatus
2. D370484 - Electronic phrase generator
3. 5333387 - Color drawing toy
4. 5102381 - Bubble producing jump rope
5. D277668 - Radio
6. 4467555 - Animated doll
7. 4305222 - Skating doll