Average Co-Inventor Count = 2.07
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. Usm Corporation (2 from 532 patents)
2. Other (1 from 832,912 patents)
3 patents:
1. 5839358 - Kneading paddle extraction device
2. 4449463 - Fabric tensioning device
3. 4171672 - Apparatus for holding work in a sewing machine