Average Co-Inventor Count = 1.64
ph-index = 3
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. Bertin & Cie (2 from 107 patents)
2. Societe Nationale Elf Aquitaine (1 from 235 patents)
3. Stein Industrie (1 from 59 patents)
3 patents:
1. 5243409 - Apparatus for measuring optical density in situ
2. 4166477 - Discharge conduits of steam generators and the like
3. 4072170 - Pressure-relieving device for steam generators and the like