Average Co-Inventor Count = 1.33
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. Hamilton Beach Brands, Inc. (2 from 344 patents)
2. Leapfrog Enterprises, Inc. (2 from 113 patents)
4 patents:
1. D759650 - Tablet learning device
2. D746811 - Tablet learning device
3. D655129 - Toaster oven
4. D654755 - Beverage maker