Average Co-Inventor Count = 1.41
ph-index = 2
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. The Times Mirror Company (3 from 8 patents)
3 patents:
1. 6523716 - Newspaper vending machine
2. 4491213 - Coin mechanism for vending machine
3. 4424892 - Coin operated newsrack