Average Co-Inventor Count = 1.33
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.
Company Filing History:
1. Other (3 from 832,812 patents)
2. Klisan, Inc. (1 from 1 patent)
4 patents:
1. 4762319 - Convertible sports stand construction
2. 4170083 - Toy construction
3. 4145051 - Racquet and return ball apparatus
4. 4077153 - Child's play block with card-retaining tangs