Average Co-Inventor Count = 2.00
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. Firma Carl Freudenberg (1 from 629 patents)
2. Firma Carl Fruedenberg (1 from 1 patent)
2 patents:
1. 6045598 - Filter insert
2. 5792228 - Accordion filter pack that is bendable in only one direction