Average Co-Inventor Count = 4.00
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. Amazon Technologies, Inc. (5 from 22,119 patents)
5 patents:
1. 8732011 - System for implementing a performance-based customer referral program
2. 8494923 - Internet-based customer referral system
3. 7512548 - Use of shopping cart to collect and purchase items selected from multiple web sites
4. 7337133 - Internet-based customer referral system
5. 6029141 - Internet-based customer referral system