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. Owens-illinois, Inc. (2 from 1,109 patents)
2 patents:
1. 4010946 - Lung exercise device
2. D242956 - Lung exercise device