Average Co-Inventor Count = 4.00
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. Metzeler Kautschuk Gmbh (2 from 57 patents)
2 patents:
1. 4683979 - Co-oscillating, volume-changing resonator in the form of a silencer
2. 4570748 - Co-oscillating, volume-changing resonator in the form of a silencer