Average Co-Inventor Count = 5.29
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. (3 from 8,782 patents)
3 patents:
1. 6339726 - Control apparatus for vending machine
2. 6155455 - Vending machine
3. 6019246 - Vending machine