Average Co-Inventor Count = 1.60
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. R.r. Donnelley and Sons Company (1 from 293 patents)
2. R.r. Donnelley (1 from 7 patents)
2 patents:
1. 5278027 - Method and apparatus for making print imaging media
2. 5080337 - Apparatus and method for individually printing signatures during