Average Co-Inventor Count = 2.57
ph-index = 1
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. The Singer Company (3 from 1,246 patents)
3 patents:
1. 4442784 - Vertically stacked components in a control module for a sewing machine
2. 4165144 - Light socket with lever contacts
3. 4098206 - Electronic motor speed regulating system having adjustable high and low