Average Co-Inventor Count = 5.00
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. Letourneau Technologies Drilling Systems, Inc. (1 from 1 patent)
2. Latourneau Technologies Drilling Systems, Inc. (1 from 1 patent)
2 patents:
1. 8047306 - Top drive drilling system and other applications using a low speed direct drive AC motor
2. 7500531 - Low speed AC motor for direct drive applications