Average Co-Inventor Count = 2.25
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. Input/output, Inc. (3 from 87 patents)
2. Ion Geophysical Corporation (99 patents)
3. Seamap Pte Ltd. (0 patent)
3 patents:
1. 6901028 - Marine seismic survey apparatus with graphical user interface and real-time quality control
2. 6873571 - Digital air gun source controller apparatus and control method
3. 6788618 - Method and apparatus for marine source diagnostics