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. Dresser Industries, Inc. (2 from 1,238 patents)
2 patents:
1. 4079868 - Castellated tundish nozzle
2. 3998648 - Monolithic refractories