Average Co-Inventor Count = 1.50
ph-index = 2
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. Filterwerk Mann + Hummel Gmbh (2 from 303 patents)
2 patents:
1. 6558457 - Drying agent box
2. 6471755 - Gas conducting system with filter for moisture removal