Average Co-Inventor Count = 8.00
ph-index = 5
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. Donaldson Comapny, Inc. (5 from 1,404 patents)
5 patents:
1. 8444748 - Multistage air cleaner including pulse cleaning system
2. 7090711 - Multistage air cleaner including pulse cleaning system
3. 6908494 - Multistage air cleaner including pulse cleaning system
4. 6872237 - Multistage air cleaner including pulse cleaning system
5. 6676721 - Multistage air cleaner including pulse cleaning system