Average Co-Inventor Count = 5.00
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. Daewoo Shipbuilding & Marine Engineering Co., Ltd. (2 from 86 patents)
2. Transocean Sedco Forex Ventures Limited (2 from 59 patents)
2 patents:
1. 9862474 - Ventilation apparatus of a drillship
2. 9376199 - Polar vessel having a derrick