Average Co-Inventor Count = 4.00
ph-index = 2
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. Nottingham-spirk Design Associates, Inc. (2 from 37 patents)
2 patents:
1. D341390 - Flying toy
2. 5254077 - Tethered ring-shaped toy