Average Co-Inventor Count = 3.66
ph-index = 5
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. Campbell Hausfeld/scott Fetzer Company (4 from 136 patents)
2. Campbell Hausfeld/scott Fetzer (1 from 1 patent)
5 patents:
1. D508930 - Welder
2. 6897406 - Electric welder
3. D504903 - Welder
4. D500331 - Welder
5. D500332 - Welder