Average Co-Inventor Count = 1.18
ph-index = 5
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. Sanden Corporation (5 from 1,029 patents)
5 patents:
1. 4954697 - Vending apparatus for self-service store
2. 4879540 - Data exchanging system using a bar code reader
3. 4778983 - Automatic vending machine
4. 4767917 - Automatic vending machine
5. 4736096 - Data collection system using a bar code reader