Average Co-Inventor Count = 2.18
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. (5 from 8,782 patents)
5 patents:
1. 6155455 - Vending machine
2. D426578 - Automatic vending machine for drinks
3. D426266 - Automatic vending machine for drinks
4. D409248 - Automatic vending machine for sweets and/or drinks
5. D408457 - Automatic vending machine for sweets and/or drinks