Average Co-Inventor Count = 1.45
ph-index = 4
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. Perrin Manufacturing Company (2 from 16 patents)
2. James River Corporation of Virginia (1 from 158 patents)
3. Perrin Manufacturing (1 from 4 patents)
4 patents:
1. 5950863 - Sheet dispenser insert
2. 5762287 - Center pull towel dispenser with towel transfer mechanism
3. 5762286 - Dispenser for a plurality of center pull towels incorporating towel
4. 5704566 - Paper towel roll with variegated perforations