Average Co-Inventor Count = 3.00
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. National Union Electric Corporation (2 from 48 patents)
2 patents:
1. 4376322 - Suction cleaner
2. 4143441 - Vacuum cleaner nozzle