Average Co-Inventor Count = 2.53
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. Amway Corporation (4 from 230 patents)
4 patents:
1. 5925172 - Air treatment system
2. 5840092 - Air treatment system
3. 5803940 - Air treatment system
4. D388510 - Air treatment unit with removable feet therefor