Average Co-Inventor Count = 1.67
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. Exxon Research and Engineering Company (1 from 4,227 patents)
2. Scope Data Incorporated (1 from 2 patents)
2 patents:
1. 4239404 - Paper management system for a printing device
2. 4189736 - Facsimile stylus assembly