Average Co-Inventor Count = 3.43
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. Litton Business Systems, Inc. (1 from 70 patents)
2. Sweda International, Inc. (1 from 9 patents)
2 patents:
1. 4189217 - Document printing system
2. 4023482 - Printing of automatically readable characters