Average Co-Inventor Count = 1.64
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. Xerox Corporation (3 from 24,195 patents)
3 patents:
1. 7499158 - Positionable calibration target for a digital printer or image scanner
2. 3961847 - Arcuate screen for an electrophotographic printing machine
3. 3961848 - Electrophotographic printing machine with halftone screen cleaning