Average Co-Inventor Count = 1.43
ph-index = 4
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. The Quaker Oats Company (3 from 714 patents)
2. Fisher-price, Inc. (2 from 87 patents)
5 patents:
1. 5544372 - Ball and socket joint, useful with collapsible playpens
2. 5363521 - Collapsible playpen
3. D295759 - Combined musical instrument and microphone
4. D284972 - Camera
5. D281517 - Toy telephone