Average Co-Inventor Count = 2.40
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. The Hoover Comapny (4 from 429 patents)
4 patents:
1. 5433242 - Pressure activated dispensing valve
2. D346679 - Carpet cleaner
3. 5233722 - Cleaner upper portion with tool storage and door
4. 4934019 - Cleaner latch arrangement