Average Co-Inventor Count = 3.43
ph-index = 1
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. Ab Ph, Nederman & Co. (2 from 29 patents)
2 patents:
1. D575378 - Joint for pipes to be used in arms for extraction of gases/fumes
2. D573707 - Arm for the extraction of gases/fumes