Average Co-Inventor Count = 3.69
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. Sanyo Electric Co., Ltd. (4 from 8,782 patents)
4 patents:
1. D430900 - Automatic vending machine for merchandise
2. D429765 - Automatic vending machine for drinks
3. D420611 - Counterfeit bill inspecting machine
4. D419193 - Automatic vending machine for drinks