Average Co-Inventor Count = 4.44
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. Marchex, Inc. (2 from 29 patents)
2 patents:
1. 8671020 - Call tracking system utilizing a pooling algorithm
2. 8634520 - Call tracking system utilizing an automated filtering function