Average Co-Inventor Count = 1.33
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. Champion International Corporation Limited (1 from 726 patents)
2. St. Regis Corporation (1 from 8 patents)
2 patents:
1. 4618341 - Tube positioning and transfer system
2. 4573863 - Fluid driven tube positioner