Average Co-Inventor Count = 2.25
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. Ryobi Limited (3 from 546 patents)
3 patents:
1. D323844 - Offset printing machine
2. D321000 - Offset printing machine
3. 4967660 - Sheet-fed rotary printing press for both obverse and reverse side