Average Co-Inventor Count = 5.00
ph-index = 3
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. Kohler Company (4 from 3,408 patents)
4 patents:
1. D988490 - Air cleaner filter
2. D943635 - Air cleaner cover and engine incorporating the same
3. D914187 - Air cleaner filter
4. D890900 - Air cleaner cover