Average Co-Inventor Count = 4.00
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. Donaldson Comapny, Inc. (3 from 1,406 patents)
2. Donaldsom Company, Inc. (1 from 1 patent)
4 patents:
1. 7416580 - Filter assemblies and systems for intake air for fuel cells
2. 6797025 - Conically shaped air-oil separator
3. 6585790 - Conically shaped air-oil separator
4. 6485535 - Conically shaped air-oil separator