Average Co-Inventor Count = 3.51
ph-index = 9
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. (11 from 1,405 patents)
2. Varitronic Systems, Inc. (2 from 18 patents)
13 patents:
1. D462117 - Air cleaner cover
2. D440645 - Body member for a housing for an air cleaner
3. D421110 - Body member for a housing for an air cleaner
4. D420117 - Coalescer filter with rear plate
5. D416308 - Safety filter element
6. D414544 - Filter element
7. D412568 - Cover for a housing for an air cleaner
8. D412567 - Housing for an air cleaner
9. D410010 - Coalescer filter
10. D407475 - Body member for a housing for an air cleaner
11. D401306 - Filter element
12. D314584 - Combined thermal lettering and page layout printer
13. D307296 - Printer